openapi: 3.0.0
info:
  description: |
    This API server is the layer that allows 3rd party apps and services interfacing with the coordinator to explore, monitor and use the Hermez rollup.
    Example of these apps are:
    * Wallet: send L2 transactions, check balance, ...
    * Explorer: List transactions, slots, batches, ...
    * Exchange integrations
    
    ### Pagination
    
    #### Usage

    All the endpoints that return a list of undefined size use pagination. Unless the opposite is explicitly said.
    In order to use pagination, three query parameters are used:
    * `fromItem`: indicates the first item to be returned. In general, this parameter shouldn't be provided in the first call to the endpoint, and use the `itemId` of the last returned item (+/-) 1, if the order is (ascending/descending).
    * `order`: all pginated items are ordered chronologicaly. However the specific fields to guarantee this order depend on each endpoint. For this purpose, `itemId` is used (itemId follows ascending chronological order except for unforged L1 user transactions). If the parameter is not provided, ascending order will be used by default. 
    * `limit`: maximum amount of items to include in each response. Default is 20, maximum 2049.
    
    Responses for those endpoint will always include a `pagination` object. This object includes the total amount of items that the endpoint will return at a given time with the given filters. Apart from that, it also includes the `itemId` of the last and first items that will be returned (not in a single response but within the total items). These two properties can be used to know when to stop querying. 

    #### Reorgs and safetyness

    Since all the items are ordered chronologicaly, there are no safety problems when fetching items in ascending order, except for reorgs (more on this later).
    On the other hand, when iterating in descending order, new items will be added at the beginning. This doesn't cause any safety problem, but to get those new items, it's necessary to start queryng without the `fromItem` set to `pagination.lastItem`.
    To handle reorgs, the `itemId` can be used since it will change. This is important since other identifiers may be the same but with different content. As an example, if the batch 424 get's reorged, it will be deleted, but eventualy, a new batch 424 will appear with potentialy different content.

    ### Signatures

    The POST endpoint require to be signed using BabyJubJub or Ethereum keys. TODO: add references to libraries / examples / ...

  version: "0.0.1"
  title: Hermez Network API
#  termsOfService: 'http://swagger.io/terms/'
#  contact:
#    email: apiteam@swagger.io
#  license:
#    name: Apache 2.0
#    url: 'http://www.apache.org/licenses/LICENSE-2.0.html'
externalDocs:
  description: Find out more about Hermez.
  url: 'https://hermez.io'
servers:
  - description: Hosted mock up
    url: http://167.71.59.190:4010
  - description: Localhost mock Up
    url: http://localhost:4010
tags:
  - name: Account
    description: Hermez account and the tokens it holds.
    externalDocs:
      description: Find out more.
      url: 'https://idocs.hermez.io/#/spec/zkrollup/README?id=account-types'
  - name: Transaction
    description: Send tokens off chain and track transactions.
    externalDocs:
      description: Find out more
      url: 'https://idocs.hermez.io/#/spec/zkrollup/README?id=transaction-types'
  - name: Hermez status
    description: Info about operators, tokens, auctions and more.
    externalDocs:
      description: Find out more.
      url: 'https://idocs.hermez.io/#/spec/zkrollup/README'
paths:
  '/account-creation-authorization':
    post:
      tags:
        - Account
      summary: Send an authorization that will allow the coordinator to register accounts associated to an Ethereum address on behalf of the user.
      description: >-
        Send an authorization to create rollup accounts associated to an Ethereum address. Each account creation (an account can only hold a specific token) is effective once the coordinator forges the corresponding L1CoordinatorTx (which are always of type *account creation*).
      operationId: postRegister
      requestBody:
        description: Account creation authorization.
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/AccountCreationAuthorizationPost'
      responses:
        '200':
          description: Successful operation.
        '400':
          description: Bad request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error400'
        '500':
          description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error500'
  '/account-creation-authorization/{hezEthereumAddress}':
    get:
      tags:
        - Account
      summary: Get to know if the coordinator has the ability to create accounts associated to an Ethereum address.
      description: >-
        True if the coordinator has the required authorization to perform an account creation with the given Ethereum address on behalf of the Ethereum address holder.
      operationId: getAccountCreationAuthorization
      parameters:
        - name: hezEthereumAddress
          in: path
          description: Ethereum address.
          required: true
          schema:
            $ref: '#/components/schemas/HezEthereumAddress'
      responses:
        '200':
          description: Successful operation.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AccountCreationAuthorization'
        '400':
          description: Bad request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error400'
        '404':
          description: Not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error404'
        '500':
          description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error500'
  '/accounts':
    get:
      tags:
        - Account
      summary: Get accounts balances and other associated information.
      description: Get accounts balances and other associated information.
      operationId: getAccounts
      parameters:
        - name: hezEthereumAddress
          in: query
          description: Only get accounts associated to an Ethereum address. Incompatible with the query `BJJ`.
          required: false
          schema:
            $ref: '#/components/schemas/HezEthereumAddress'
        - name: BJJ
          in: query
          description: Only get accounts associated to a BabyJubJub public key.  Incompatible with the query `hezEthereumAddress`.
          required: false
          schema:
            $ref: '#/components/schemas/BJJ'
        - name: tokenIds
          in: query
          required: false
          description: Only get accounts of specific tokens.
          schema:
            type: string
            description: Comma separated list of token identifiers.
            example: "3,87,91"
        - name: fromItem
          in: query
          required: false
          description: Indicates the desired first item (using the itemId property) to be included in the response.
          schema:
            type: number
        - name: order
          in: query
          required: false
          description: Order of the returned items. Accounts will be ordered by increasing account index.
          schema:
            type: string
            default: ASC
            enum:
                - ASC
                - DESC
        - name: limit
          in: query
          required: false
          description: Maximum number of items to be returned.
          schema:
            type: integer
            minimum: 1
            maximum: 2049
      responses:
        '200':
          description: Successful operation.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Accounts'
        '400':
          description: Bad request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error400'
        '404':
          description: Not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error404'
        '500':
          description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error500'
  '/accounts/{accountIndex}':
    get:
      tags:
        - Account
      summary: Get an account by its index.
      description: Get an account by its index.
      operationId: getAccount
      parameters:
        - name: accountIndex
          in: path
          description: Identifier of an account.
          required: true
          schema:
            $ref: '#/components/schemas/AccountIndex'
      responses:
        '200':
          description: Successful operation.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Account'
        '400':
          description: Bad request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error400'
        '404':
          description: Not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error404'
        '500':
          description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error500'
  '/exits':
    get:
      tags:
        - Account
      summary: Get exit information. This information is required to perform a withdraw.
      description: Get exit information. This information is required to perform a withdraw.
      operationId: getExits
      parameters:
        - name: tokenId
          in: query
          required: false
          description: Only get exits of specific token
          schema:
            $ref: '#/components/schemas/TokenId'
        - name: hezEthereumAddress
          in: query
          description: Get exits associated to a Ethereum address. Incompatible with query `BJJ` and `accountIndex`.
          required: false
          schema:
            $ref: '#/components/schemas/HezEthereumAddress'
        - name: BJJ
          in: query
          description: Get exits associated to a BabyJubJub public key. Incompatible with query `hezEthereumAddress` and `accountIndex`.
          required: false
          schema:
            $ref: '#/components/schemas/BJJ'
        - name: accountIndex
          in: query
          description: Get exits associated to a specific account. Incompatible with queries `tokenId`, `hezEthereumAddress` and `BJJ`.
          required: false
          schema:
            $ref: '#/components/schemas/AccountIndex'
        - name: batchNum
          in: query
          description: Get exits from the exit tree of a specific batch.
          required: false
          schema:
            $ref: '#/components/schemas/BatchNum'
        - name: onlyPendingWithdraws
          in: query
          description: Get exits with pending withdrawals.
          required: false
          schema:
            type: boolean
        - name: fromItem
          in: query
          required: false
          description: Indicates the desired first item (using the itemId property) to be included in the response.
          schema:
            type: number
        - name: order
          in: query
          required: false
          description: Order of the returned items. Exits will be ordered by increasing (batchNum, accountIndex).
          schema:
            type: string
            default: ASC
            enum:
                - ASC
                - DESC
        - name: limit
          in: query
          required: false
          description: Maximum number of items to be returned.
          schema:
            type: integer
            minimum: 1
            maximum: 2049
      responses:
        '200':
          description: Successful operation.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Exits'
        '400':
          description: Bad request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error400'
        '404':
          description: Not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error404'
        '500':
          description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error500'
  '/exits/{batchNum}/{accountIndex}':
    get:
      tags:
        - Account
      summary: Get specific exit information.
      description: Get exit information form a specific exit tree and account. This information is required to perform a withdraw. Exits are identified with accounIndex and batchNum since every batch that has exits has a different exit tree.
      operationId: getExit
      parameters:
        - name: batchNum
          in: path
          description: Batch of the exit tree.
          required: true
          schema:
            $ref: '#/components/schemas/BatchNum'
        - name: accountIndex
          in: path
          description: Account identifier.
          required: true
          schema:
            $ref: '#/components/schemas/AccountIndex'
      responses:
        '200':
          description: Successful operation.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Exit'
        '400':
          description: Bad request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error400'
        '404':
          description: Not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error404'
        '500':
          description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error500'
  '/transactions-pool':
    post:
      tags:
        - Transaction
      summary: Add an L2 transaction to the coordinator's pool
      description: >-
        Send L2 transaction. The transaction will be stored in the transaction pool of the coordinator and eventually forged.
      operationId: postTx
      requestBody:
        description: Signed transaction.
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/PostPoolL2Transaction'
      responses:
        '200':
          description: Successful operation.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TransactionId'
        '400':
          description: Bad request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error400'
        '500':
          description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error500'
  '/transactions-pool/{id}':
    get:
      tags:
        - Transaction
      summary: Get details and status of a transaction that is in the pool.
      description: >-
        Get transaction from the pool by its id. This endpoint is specially useful for tracking the status of a transaction that may not be forged yet.
        Only transactions from the pool will be returned.
        Note that the transaction pool is different for each coordinator and therefore only a coordinator that has received a specific transaction
        will be able to provide information about that transaction.
      operationId: getPoolTx
      parameters:
        - name: id
          in: path
          description: Transaction identifier.
          required: true
          schema:
            $ref: '#/components/schemas/TransactionId'
      responses:
        '200':
          description: Successful operation.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PoolL2Transaction'
        '400':
          description: Bad request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error400'
        '404':
          description: Not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error404'
        '500':
          description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error500'
  '/transactions-history':
    get:
      tags:
        - Transaction
      summary: Get details and status of transactions that have been forged.
      description: >-
        Get historical transactions. This endpoint will return all the different types of transactions except for:
          - Transactions that are still in the transaction pool of any coordinator. These transactions can be fetched using `GET /transactions-pool/{id}`.
          - L1 transactions sent by users that have not been forged yet. These transactions can be fetched using `GET /transactions-history/{id}`.
      operationId: getHistoryTxs
      parameters:
        - name: tokenId
          in: query
          required: false
          description: Only get transactions of specific token
          schema:
            $ref: '#/components/schemas/TokenId'
        - name: hezEthereumAddress
          in: query
          required: false
          description: Only get transactions sent from or to an account associated to an Ethereum address Incompatible with the queries `BJJ` and `accountIndex`.
          schema:
            $ref: '#/components/schemas/HezEthereumAddress'
        - name: BJJ
          in: query
          description: Only get transactions associated to a BabyJubJub public key. Incompatible with the queries `hezEthereumAddress` and `accountIndex`.
          required: false
          schema:
            $ref: '#/components/schemas/BJJ'
        - name: accountIndex
          in: query
          required: false
          description: Only get transactions sent from or to a specific account. Incompatible with the queries `tokenId`, `hezEthereumAddress` and `BJJ`.
          schema:
            $ref: '#/components/schemas/AccountIndex'
        - name: batchNum
          in: query
          required: false
          description: Only get transactions forged in a specific batch.
          schema:
            $ref: '#/components/schemas/BatchNum'
        - name: type
          in: query
          required: false
          description: Only get transactions of a specific type.
          schema:
            $ref: '#/components/schemas/TransactionType'
        - name: fromItem
          in: query
          required: false
          description: Indicates the desired first item (using the itemId property) to be included in the response.
          schema:
            type: number
        - name: order
          in: query
          required: false
          description: Order of the returned items. History transactions will be ordered by (batchNum, position).
          schema:
            type: string
            default: ASC
            enum:
                - ASC
                - DESC
        - name: limit
          in: query
          required: false
          description: Maximum number of items to be returned.
          schema:
            type: integer
            minimum: 1
            maximum: 2049
      responses:
        '200':
          description: Successful operation.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HistoryTransactions'
        '400':
          description: Bad request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error400'
        '404':
          description: Not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error404'
        '500':
          description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error500'
  '/transactions-history/{id}':
    get:
      tags:
        - Transaction
      summary: Get details and status of a historical transaction.
      description: >-
        Get transaction from the history by its id. This endpoint will return all the different types of transactions except those that are still in the pool of any coordinator.
      operationId: getHistoryTx
      parameters:
        - name: id
          in: path
          description: Transaction identifier.
          required: true
          schema:
            $ref: '#/components/schemas/TransactionId'
      responses:
        '200':
          description: Successful operation.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HistoryTransaction'
        '400':
          description: Bad request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error400'
        '404':
          description: Not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error404'
        '500':
          description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error500'
  '/batches':
    get:
      tags:
        - Hermez status
      summary: Get information about forged batches.
      description: >-
        Get information about forged batches.
      operationId: getBatches
      parameters:
        - name: minBatchNum
          in: query
          required: false
          description: Include only `batchNum > minBatchNum` batches.
          schema:
            $ref: '#/components/schemas/BatchNum'
        - name: maxBatchNum
          in: query
          required: false
          description: Include only `batchNum < maxBatchNum` batches.
          schema:
            type: number
        - name: slotNum
          in: query
          required: false
          description: Include only batches that were forged within the specified slot.
          schema:
            $ref: '#/components/schemas/SlotNum'
        - name: forgerAddr
          in: query
          required: false
          description: Include only batches forged by `forgerAddr`
          schema:
            $ref: '#/components/schemas/EthereumAddress'
        - name: fromItem
          in: query
          required: false
          description: Indicates the desired first item (using the itemId property) to be included in the response.
          schema:
            type: number
        - name: order
          in: query
          required: false
          description: Order of the returned items. Batches will be ordered by increasing `batchNum`.
          schema:
            type: string
            default: ASC
            enum:
                - ASC
                - DESC
        - name: limit
          in: query
          required: false
          description: Maximum number of items to be returned.
          schema:
            type: integer
            minimum: 1
            maximum: 2049
      responses:
        '200':
          description: Successful operation.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Batches'
        '400':
          description: Bad request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error400'
        '404':
          description: Not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error404'
        '500':
          description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error500'                
  '/batches/{batchNum}':
    get:
      tags:
        - Hermez status
      summary: Get a specific batch.
      description: >-
        Get a specific batch.
      operationId: getBatch
      parameters:
        - name: batchNum
          in: path
          description: Batch identifier.
          required: true
          schema:
            $ref: '#/components/schemas/BatchNum'
      responses:
        '200':
          description: Successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Batch'
        '400':
          description: Bad request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error400'
        '404':
          description: Not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error404'
        '500':
          description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error500'
  '/full-batches/{batchNum}':
    get:
      tags:
        - Hermez status
      summary: Get a full batch
      description: >-
        Get a specific batch, including the associated transactions. The object returned in this method can be a bit heavy. 
        If you're devloping a front end, you may consider using a combinaton of `GET /batches/{batchnum}` and `GET /history-transactions?batchNum={batchNum}`.
      operationId: getFullBatch
      parameters:
        - name: batchNum
          in: path
          description: Batch identifier
          required: true
          schema:
            $ref: '#/components/schemas/BatchNum'
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/FullBatch'
        '400':
          description: Bad request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error400'
        '404':
          description: Not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error404'
        '500':
          description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error500'
  '/slots':
    get:
      tags:
        - Hermez status
      summary: Get information about slots.
      description: >-
        Get information about slots.
      operationId: getSlots
      parameters:
        - name: minSlotNum
          in: query
          required: false
          description: Only include batches with `slotNum < minSlotNum`.
          schema:
            $ref: '#/components/schemas/SlotNum'
        - name: maxSlothNum
          in: query
          required: false
          description: Only include batches with `slotNum > maxSlotNum`.
          schema:
            $ref: '#/components/schemas/SlotNum'
        - name: wonByEthereumAddress
          in: query
          required: false
          description: Only include slots won by a coordinator whose `forgerAddr == wonByEthereumAddress`.
          schema:
            $ref: '#/components/schemas/EthereumAddress'
        - name: finishedAuction
          in: query
          required: false
          description: If set to true, only include slots whose auction has finished.
          schema:
            type: boolean
        - name: fromItem
          in: query
          required: false
          description: Indicates the desired first item (using the itemId property) to be included in the response.
          schema:
            type: number
        - name: order
          in: query
          required: false
          description: Order of the returned items. Slots will be ordered by increasing `slotNum`.
          schema:
            type: string
            default: ASC
            enum:
                - ASC
                - DESC
        - name: limit
          in: query
          required: false
          description: Maximum number of items to be returned.
          schema:
            type: integer
            minimum: 1
            maximum: 2049
      responses:
        '200':
          description: Successful operation.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Slots'
        '400':
          description: Bad request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error400'
        '404':
          description: Not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error404'
        '500':
          description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error500'
  '/slots/{slotNum}':
    get:
      tags:
        - Hermez status
      summary: Get information about a specific slot.
      description: >-
        Get information about a specific slot.
      operationId: getSlot
      parameters:
        - name: slotNum
          in: path
          required: true
          description: Identifier of the slot.
          schema:
            $ref: '#/components/schemas/SlotNum'
      responses:
        '200':
          description: Successful operation.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Slot'
        '400':
          description: Bad request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error400'
        '404':
          description: Not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error404'
        '500':
          description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error500'
  '/bids':
    get:
      tags:
        - Hermez status
      summary: Get a list of bids made for a specific slot auction.
      description: Get a list of bids made for a specific slot auction. Is necessary to add a filter (`slotNum` or `bidderAddr`).
      operationId: getSlotBids
      parameters:
        - name: slotNum
          in: query
          description: Slot identifier. Specify the auction where the returned bids were made.
          required: false
          schema:
            $ref: '#/components/schemas/SlotNum'
        - name: bidderAddr
          in: query
          description: Get only bids made by a coordinator identified by its bidder address. In this case, the bids will be returned in the order that the coordinator made them.
          required: false
          schema:
            $ref: '#/components/schemas/EthereumAddress'
        - name: fromItem
          in: query
          required: false
          description: Indicates the desired first item (using the itemId property) to be included in the response.
          schema:
            type: number
        - name: order
          in: query
          required: false
          description: Order of the returned items. Bids will be ordered by increasing (slotNum, bidValue)`.
          schema:
            type: string
            default: ASC
            enum:
                - ASC
                - DESC
        - name: limit
          in: query
          required: false
          description: Maximum number of items to be returned.
          schema:
            type: integer
            minimum: 1
            maximum: 2049
      responses:
        '200':
          description: Successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Bids'
        '400':
          description: Bad request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error400'
        '404':
          description: Not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error404'
        '500':
          description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error500'
  '/state':
    get:
      tags:
        - Hermez status
      summary: Return information that represents the current state of the network.
      description: Return information that represents the current state of the network. It also includes metrics and statistics.
      operationId: getState
      responses:
        '200':
          description: Successful operation.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/State'
        '400':
          description: Bad request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error400'
        '500':
          description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error500'
  '/config':
    get:
      tags:
        - Hermez status
      summary: Return constant configuration of the network.
      description: Return constant configuration of the network.
      operationId: getConfig
      responses:
        '200':
          description: Successful operation.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Config'
        '500':
          description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error500'
  '/tokens':
    get:
      tags:
        - Hermez status
      summary: Get information of the supported tokens in the Hermez network.
      description: Get information of the supported tokens in the Hermez network.
      operationId: getTokens
      parameters:
        - name: ids
          in: query
          required: false
          description: Include only specific tokens by their Hermez identifiers.
          schema:
            type: string
            description: Comma separated list of token identifiers
            example: "2,44,689"
        - name: symbols
          in: query
          required: false
          description: Include only specific tokens by their symbols.
          schema:
            type: string
            description: Comma separated list of token symbols.
            example: "DAI,NEC,UMA"
        - name: name
          in: query
          required: false
          description: Include token(s) by their names (or a substring of the name).
          schema:
            type: string
        - name: fromItem
          in: query
          required: false
          description: Indicates the desired first item (using the itemId property) to be included in the response.
          schema:
            type: number
        - name: order
          in: query
          required: false
          description: Order of the returned items. Tokens will be ordered by increasing tokenID.
          schema:
            type: string
            default: ASC
            enum:
                - ASC
                - DESC
        - name: limit
          in: query
          required: false
          description: Maximum number of items to be returned.
          schema:
            type: integer
            minimum: 1
            maximum: 2049
      responses:
        '200':
          description: Successful operation.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Tokens'
        '400':
          description: Bad request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error400'
        '404':
          description: Not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error404'
        '500':
          description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error500'
  '/tokens/{id}':
    get:
      tags:
        - Hermez status
      summary: Get information of a token supported by Hermez network.
      description: Get information of a token supported by Hermez network.
      operationId: getToken
      parameters:
        - name: id
          in: path
          description: Token identifier
          required: true
          schema:
            $ref: '#/components/schemas/TokenId'
      responses:
        '200':
          description: Successful operation.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Token'
        '400':
          description: Bad request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error400'
        '404':
          description: Not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error404'
        '500':
          description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error500'
  '/coordinators':
    get:
      tags:
        - Hermez status
      summary: Get information about coordinators.
      description: Get information about coordinators.
      operationId: getCoordinators
      parameters:
        - name: fromItem
          in: query
          required: false
          description: Indicates the desired first item (using the itemId property) to be included in the response.
          schema:
            type: number
        - name: order
          in: query
          required: false
          description: Order of the returned items. Coordinators will be ordered by increasing (ethereumBlock, forgerAddr).
          schema:
            type: string
            default: ASC
            enum:
                - ASC
                - DESC
        - name: limit
          in: query
          required: false
          description: Maximum number of items to be returned.
          schema:
            type: integer
            minimum: 1
            maximum: 2049
      responses:
        '200':
          description: Successful operation.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Coordinators'
        '400':
          description: Bad request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error400'
        '500':
          description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error500'
  '/coordinators/{bidderAddr}':
    get:
      tags:
        - Hermez status
      summary: Get the information of a coordinator.
      description: Get the information of a coordinator.
      operationId: getCoordinator
      parameters:
        - name: bidderAddr
          in: path
          description: Coordinator identifier
          required: true
          schema:
            $ref: '#/components/schemas/EthereumAddress'
      responses:
        '200':
          description: Successful operation.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Coordinator'
        '400':
          description: Bad request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error400'
        '404':
          description: Not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error404'
        '500':
          description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error500'
components:
  schemas:
    ItemId:
      type: integer
      description: Position of the item in the DB. This is useful for pagination, but has  nothing to do with the protocol.
    PostPoolL2Transaction:
      type: object
      description: L2 transaction to be posted.
      properties:
        id:
          $ref: '#/components/schemas/TransactionId'
        type:
          $ref: '#/components/schemas/TransactionTypeL2'
        tokenId:
          $ref: '#/components/schemas/TokenId'
        fromAccountIndex:
          $ref: '#/components/schemas/AccountIndex'
        toAccountIndex:
          type: string
          description: >-
            Identifier of the destination account. It references the position where the account is inside the state Merkle tree.
            The identifier is built using: `hez:` + `token symbol:` + `index`. If this is provided, toHezEthereumAddress and toBjj
            must be null. To perform an exit the value hez:EXIT:1 must be used.
          example: null
          nullable: true
        toHezEthereumAddress:
          type: string
          description: "Address of an Etherum account linked to the Hermez network. If this is provided, toAccountIndex and toBjj must be null."
          pattern: "^hez:0x[a-fA-F0-9]{40}$"
          example: "hez:0xaa942cfcd25ad4d90a62358b0dd84f33b398262a"
          nullable: true
        toBjj:
          type: string
          description: >-
            BabyJubJub public key, encoded as base64 URL (RFC 4648), which result in 33 bytes. The padding byte is replaced by a sum of the encoded bytes.
            If this is prvided, toAccountIndex must be null and toHezEthereumAddress must be hez:0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF.
          pattern: "^hez:[A-Za-z0-9_-]{44}$"
          example: null
          nullable: true
        amount:
          allOf:
            - $ref: '#/components/schemas/BigInt'
            - description: Amount of tokens to be sent.
              example: "6300000000000000000"
        fee:
          $ref: '#/components/schemas/FeeSelector'
        nonce:
          $ref: '#/components/schemas/Nonce'
        signature:
          allOf:
            - $ref: '#/components/schemas/BJJSignature'
            - description: Signature of the transaction. More info [here](https://idocs.hermez.io/#/spec/zkrollup/README?id=l2a-idl2).
            - example: "72024a43f546b0e1d9d5d7c4c30c259102a9726363adcc4ec7b6aea686bcb5116f485c5542d27c4092ae0ceaf38e3bb44417639bd2070a58ba1aa1aab9d92c03"
        requestFromAccountIndex:
          type: string
          description: References the `fromAccountIndex` of the requested transaction.
          example: null
          nullable: true
        requestToAccountIndex:
          type: string
          description: References the `toAccountIndex` of the requested transaction.
          example: null
          nullable: true
        requestToHezEthereumAddress:
          type: string
          description: References the `toHezEthereumAddress` of the requested transaction.
          pattern: "^hez:0x[a-fA-F0-9]{40}$"
          example: null
          nullable: true
        requestToBjj:
          type: string
          description: References the `toBjj` of the requested transaction.
          pattern: "^hez:[A-Za-z0-9_-]{44}$"
          example: null
          nullable: true
        requestTokenId:
          type: integer
          description: References the `tokenId` of the requested transaction.
          example: null
          nullable: true
        requestAmount:
          type: string
          description: References the `amount` of the requested transaction.
          example: null
          nullable: true
        requestFee:
          type: integer
          description: References the `fee` of the requested transaction.
          example: null
          nullable: true
        requestNonce:
          type: integer
          description: References the `nonce` of the requested transaction.
          example: null
          nullable: true
      required:
      - id
      - type
      - tokenId
      - fromAccountIndex
      - amount
      - fee
      - nonce
      - signature
    PoolL2Transaction:
      type: object
      properties:
        id:
          $ref: '#/components/schemas/TransactionId'
        type:
          $ref: '#/components/schemas/TransactionTypeL2'
        fromAccountIndex:
          $ref: '#/components/schemas/AccountIndex'
        fromHezEthereumAddress:
          type: string
          description: "Address of an Etherum account linked to the Hermez network."
          pattern: "^hez:0x[a-fA-F0-9]{40}$"
          example: "hez:0xaa942cfcd25ad4d90a62358b0dd84f33b398262a"
          nullable: true
        fromBJJ:
          type: string
          description: "BabyJubJub public key, encoded as base64 URL (RFC 4648), which result in 33 bytes. The padding byte is replaced by a sum of the encoded bytes."
          pattern: "^hez:[A-Za-z0-9_-]{44}$"
          example: "hez:9CK9fjQdMUTGm8KDvGLy3MB-vnP0NCcGX7Uh7OO6KRJm"
          nullable: true
        toAccountIndex:
          type: string
          description: >-
            Identifier of the destination account. It references the position where the account is inside the state Merkle tree.
            The identifier is built using: `hez:` + `token symbol:` + `index`
          example: "hez:DAI:309"
          nullable: true
        toHezEthereumAddress:
          type: string
          description: "Address of an Etherum account linked to the Hermez network."
          pattern: "^hez:0x[a-fA-F0-9]{40}$"
          example: null
          nullable: true
        toBjj:
          type: string
          description: "BabyJubJub public key, encoded as base64 URL (RFC 4648), which result in 33 bytes. The padding byte is replaced by a sum of the encoded bytes."
          pattern: "^hez:[A-Za-z0-9_-]{44}$"
          example: null
          nullable: true
        amount:
          allOf:
            - $ref: '#/components/schemas/BigInt'
            - description: Amount of tokens to be sent.
              example: "6303020000000000000"
        fee:
          $ref: '#/components/schemas/FeeSelector'
        nonce:
          $ref: '#/components/schemas/Nonce'
        state:
          $ref: '#/components/schemas/PoolL2TransactionState'
        signature:
          allOf:
            - $ref: '#/components/schemas/BJJSignature'
            - description: Signature of the transaction. More info [here](https://idocs.hermez.io/#/spec/zkrollup/README?id=l2a-idl2).
            - example: "72024a43f546b0e1d9d5d7c4c30c259102a9726363adcc4ec7b6aea686bcb5116f485c5542d27c4092ae0ceaf38e3bb44417639bd2070a58ba1aa1aab9d92c03"
        timestamp:
          type: string
          description: Moment in which the transaction was added to the pool.
          format: date-time
        batchNum:
          type: integer
          description: Identifier of a batch. Every new forged batch increments by one the batchNum, starting at 0.
          minimum: 0
          maximum: 4294967295
          nullable: true
          example: null
        requestFromAccountIndex:
          type: string
          description: >-
            Identifier of an account. It references the position where the account is inside the state Merkle tree.
            The identifier is built using: `hez:` + `token symbol:` + `index`
          nullable: true
          example: null
        requestToAccountIndex:
          type: string
          description: >-
            Identifier of an account. It references the position where the account is inside the state Merkle tree.
            The identifier is built using: `hez:` + `token symbol:` + `index`
          nullable: true
          example: null
        requestToHezEthereumAddress:
          type: string
          description: "Address of an Etherum account linked to the Hermez network."
          pattern: "^hez:0x[a-fA-F0-9]{40}$"
          nullable: true
          example: null
        requestToBJJ:
          type: string
          description: "BabyJubJub public key, encoded as base64 URL (RFC 4648), which result in 33 bytes. The padding byte is replaced by a sum of the encoded bytes."
          pattern: "^hez:[A-Za-z0-9_-]{44}$"
          nullable: true
          example: null
        requestTokenId:
          type: integer
          description: References the `tokenId` of the requested transaction.
          example: null
          nullable: true
        requestAmount:
          type: string
          description: BigInt is an integer encoded as a string for numbers that are very large.
          nullable: true
          example: null
        requestFee:
          type: integer
          description: Index of the fee type to select, more info [here](https://idocs.hermez.io/#/spec/zkrollup/fee-table?id=transaction-fee-table).
          minimum: 0
          maximum: 256
          nullable: true
          example: null
        requestNonce:
          type: integer
          description: Number that can only be used once per account. Increments by one with each transaction.
          minimum: 0
          maximum: 1.84467440737096e+19
          nullable: true
          example: null
        token:
          $ref: '#/components/schemas/Token'
      required:
        - id
        - type
        - fromAccountIndex
        - fromHezEthereumAddress
        - fromBJJ
        - toAccountIndex
        - toHezEthereumAddress
        - toBjj
        - amount
        - fee
        - nonce
        - state
        - signature
        - timestamp
        - batchNum
        - requestFromAccountIndex
        - requestToAccountIndex
        - requestToHezEthereumAddress
        - requestToBJJ
        - requestTokenId
        - requestAmount
        - requestFee
        - requestNonce
        - token
    TransactionId:
      type: string
      description: Identifier for transactions. Used for any kind of transaction (both L1 and L2). More info on how the identifiers are built [here](https://idocs.hermez.io/#/spec/architecture/db/README?id=txid)
      example: "0x00000000000001e240004700" 
    EthereumAddress:
      type: string
      description: "Address of an Etherum account."
      pattern: "^0x[a-fA-F0-9]{40}$"
      example: "0xaa942cfcd25ad4d90a62358b0dd84f33b398262a" 
    HezEthereumAddress:
      type: string
      description: "Address of an Etherum account linked to the Hermez network."
      pattern: "^hez:0x[a-fA-F0-9]{40}$"
      example: "hez:0xaa942cfcd25ad4d90a62358b0dd84f33b398262a" 
    BJJ:
      type: string
      description: "BabyJubJub public key, encoded as base64 URL (RFC 4648), which result in 33 bytes. The padding byte is replaced by a sum of the encoded bytes."
      pattern: "^hez:[A-Za-z0-9_-]{44}$"
      example: "hez:rR7LXKal-av7I56Y0dEBCVmwc9zpoLY5ERhy5w7G-xwe"
    AccountIndex:
      type: string
      description: >-
        Identifier of an account. It references the position where the account is inside the state Merkle tree.
        The identifier is built using: `hez:` + `token symbol:` + `index`
      example: "hez:DAI:4444"
    TransactionType:
      type: string
      description: Type of transaction.
      enum:
      - Exit
      - Transfer
      - Deposit
      - CreateAccountDeposit
      - CreateAccountDepositTransfer
      - DepositTransfer
      - ForceTransfer
      - ForceExit
      - TransferToEthAddr
      - TransferToBJJ
    TransactionTypeL2:
      type: string
      description: Type of transaction.
      enum:
      - Exit
      - Transfer
      - TransferToEthAddr
      - TransferToBJJ
    TokenId:
      type: integer
      description: Identifier of a token registered in the network.
      minimum: 0
      maximum: 4294967295
      example: 98765
    BigInt:
      type: string
      description: BigInt is an integer encoded as a string for numbers that are very large.
      example: "8708856933496328593"
      pattern: "^\\d+$"
    FeeSelector:
      type: integer
      description: Index of the fee type to select, more info [here](https://idocs.hermez.io/#/spec/zkrollup/fee-table?id=transaction-fee-table).
      minimum: 0
      maximum: 256
      example: 36
    Nonce:
      type: integer
      description: Number that can only be used once per account, increments by one at each transaction.
      minimum: 0
      maximum: 1.84467440737096e+19
      example: 121
    PoolL2TransactionState:
      type: string
      description: > 
        State of a L2 transaction from the coordinator pool.
          * pend: Pending
          * fing: Forging
          * fged: Forged
          * invl: Invalid  
      enum:
      - pend
      - fing
      - fged
      - invl    
    ETHSignature:
      type: string
      description: Ethereum signature.
      pattern: "^0x[a-fA-F0-9]{130}$"
      example: "0xf9161cd688394772d93aa3e7b3f8f9553ca4f94f65b7cece93ed4a239d5c0b4677dca6d1d459e3a5c271a34de735d4664a43e5a8960a9a6e027d12c562dd448e1c"
    BJJSignature:
      type: string
      description: BabyJubJub compressed signature.
      pattern: "^[a-fA-F0-9]{128}$"
      example: "72024a43f546b0e1d9d5d7c4c30c259102a9726363adcc4ec7b6aea686bcb5116f485c5542d27c4092ae0ceaf38e3bb44417639bd2070a58ba1aa1aab9d92c03"
    BatchNum:
      type: integer
      description: Identifier of a batch. Every new forged batch increments by one the batchNum, starting at 0.
      minimum: 0
      maximum: 4294967295
      example: 5432
    AccountCreationAuthorizationPost:
      type: object
      properties:
        hezEthereumAddress:
          $ref: '#/components/schemas/HezEthereumAddress'
        bjj:
          $ref: '#/components/schemas/BJJ'
        signature:
          $ref: '#/components/schemas/ETHSignature'
      required:
      - hezEthereumAddress
      - bjj
      - signature
    AccountCreationAuthorization:
      type: object
      properties:
        timestamp:
          type: string
          format: date-time
        hezEthereumAddress:
          $ref: '#/components/schemas/HezEthereumAddress'
        bjj:
          $ref: '#/components/schemas/BJJ'
        signature:
          $ref: '#/components/schemas/ETHSignature'
      required:
      - timestamp
      - hezEthereumAddress
      - bjj
      - signature
    HistoryTransaction:
      type: object
      description: Transaction of the Hermez network
      properties:
        L1orL2:
          type: string
          enum:
            - L1
            - L2
        id:
          $ref: '#/components/schemas/TransactionId'
        itemId:
          $ref: '#/components/schemas/ItemId'
        type:
          $ref: '#/components/schemas/TransactionType'
        position:
          $ref: '#/components/schemas/TransactionPosition'
        fromAccountIndex:
          type: string
          description: >-
            Identifier of an account. It references the position where the account is inside the state Merkle tree.
            The identifier is built using: `hez:` + `token symbol:` + `index`
          example: "hez:DAI:4444"
          nullable: true
        fromHezEthereumAddress:
          type: string
          description: "Address of an Etherum account linked to the Hermez network."
          pattern: "^hez:0x[a-fA-F0-9]{40}$"
          example: "hez:0xaa942cfcd25ad4d90a62358b0dd84f33b398262a"
          nullable: true
        fromBJJ:
          type: string
          description: "BabyJubJub public key, encoded as base64 URL (RFC 4648), which result in 33 bytes. The padding byte is replaced by a sum of the encoded bytes."
          pattern: "^hez:[A-Za-z0-9_-]{44}$"
          example: "hez:9CK9fjQdMUTGm8KDvGLy3MB-vnP0NCcGX7Uh7OO6KRJm"
          nullable: true
        toAccountIndex:
          allOf:
            - $ref: '#/components/schemas/AccountIndex'
            - example: "hez:DAI:672"
        toHezEthereumAddress:
          type: string
          description: "Address of an Etherum account linked to the Hermez network."
          pattern: "^hez:0x[a-fA-F0-9]{40}$"
          example: "hez:0xaa942cfcd25ad4d90a62358b0dd84f33b398262a"
          nullable: true
        toBJJ:
          type: string
          description: "BabyJubJub public key, encoded as base64 URL (RFC 4648), which result in 33 bytes. The padding byte is replaced by a sum of the encoded bytes."
          pattern: "^hez:[A-Za-z0-9_-]{44}$"
          example: "hez:f1J78_6uqTyjX6jrVCqN4RFeRBnWQAGl477ZFtOnH6Sm"
          nullable: true
        amount:
          allOf:
            - $ref: '#/components/schemas/BigInt'
            - description: Amount of tokens to be sent.
            -  example: "4903020000000000000"
        batchNum:
          type: integer
          description: Batch in which the transaction was forged. Null indicates not forged yet.
          minimum: 0
          maximum: 4294967295
          example: 5432
          nullable: true
        historicUSD:
          type: number
          description: Value in USD at the moment the transaction was forged.
          example: 49.7
          nullable: true
        timestamp:
          type: string
          format: date-time
          description: In the case of L1 indicates the moment where the transaction was added in the smart contract. For L2 indicates when the transaction was forged.
        token:
          $ref: '#/components/schemas/Token'
        L1Info:
          type: object
          description: Additional information that only applies to L1 transactions.
          nullable: true
          properties:
            toForgeL1TransactionsNum:
              $ref: '#/components/schemas/ToForgeL1TransactionsNum'
            userOrigin:
              type: boolean
              description: True if the transaction was sent by a user. False if it was sent by a coordinator.
            loadAmount:
              allOf:
                - $ref: '#/components/schemas/BigInt'
                - description: Tokens transfered from L1 to L2.
                - example: "4900000000000000000"
            historicLoadAmountUSD:
              type: number
              description: Load amount in USD, at the moment the transaction was made.
              example: 3.897
              nullable: true
            ethereumBlockNum:
              allOf:
                - $ref: '#/components/schemas/EthBlockNum'
                - description: Ethereum block in which the transaction was added to the smart contract forge queue.
                - example: 258723049
          required:
            - toForgeL1TransactionsNum
            - userOrigin
            - loadAmount
            - historicLoadAmountUSD
            - ethereumBlockNum
          additionalProperties: false
        L2Info:
          type: object
          description: Additional information that only applies to L2 transactions.
          nullable: true
          properties:
            fee:
              $ref: '#/components/schemas/FeeSelector'
            historicFeeUSD:
              type: number
              description: Fee in USD, at the moment the transaction was forged.
              example: 263.89
              nullable: true
            nonce:
              $ref: '#/components/schemas/Nonce'
          example: null
          required:
            - fee
            - historicFeeUSD
            - nonce
          additionalProperties: false
      required:
        - L1orL2
        - id
        - itemId
        - type
        - position
        - fromAccountIndex
        - fromHezEthereumAddress
        - fromBJJ
        - toAccountIndex
        - toHezEthereumAddress
        - toBJJ
        - amount
        - batchNum
        - historicUSD
        - timestamp
        - token
        - L1Info
        - L2Info
      additionalProperties: false
    HistoryTransactions:
      type: object
      properties:
        transactions:
          type: array
          description: List of history transactions.
          items: 
            $ref: '#/components/schemas/HistoryTransaction'
        pagination:
          $ref: '#/components/schemas/PaginationInfo'
      required:
        - transactions
        - pagination
      additionalProperties: false
    EthBlockNum:
      type: integer
      description: Ethereum block number
      minimum: 0
      maximum: 1.84467440737096e+19
      example: 762375478
    ToForgeL1TransactionsNum:
      type: integer
      description: Reference to know in which batch a L1 transaction was forged / will be forged.
      minimum: 0
      maximum: 4294967295
      example: 784
      nullable: true
    TransactionPosition:
      type: integer
      description: Position that a transaction occupies in a batch.
      minimum: 0
      example: 5
    URL:
      type: string
      description: HTTP URL
      example: "https://hermez.io"
    TokenSymbol:
      type: string
      description: Abreviation of the token name.
      example: "DAI"
    TokenName:
      type: string
      description: Token name.
      example: "Dai"
    CollectedFees:
      type: object
      description: Collected fees by the forger of the batch, represented by a map of tokenId => amount. A maximum of 64 different tokens can be used.
      additionalProperties:
        type: string
      example:
        1234: "425632785672345647"
        4321: "86538967235465432654352"
    Batch:
      type: object
      description: Group of transactions forged in a coordinator and sent and validated in Ethereum.
      properties:
        itemId:
          $ref: '#/components/schemas/ItemId'
        batchNum:
          $ref: '#/components/schemas/BatchNum'
        ethereumBlockNum:
          $ref: '#/components/schemas/EthBlockNum'
        ethereumBlockHash:
          type: string
          description: hash of the Ethereum block in which the batch was forged
          example: "0xfe88c94d860f01a17f961bf4bdfb6e0c6cd10d3fda5cc861e805ca1240c58553"
        timestamp:
          type: string
          format: date-time
          description: Time in which the batch was forged.
        forgerAddr:
          $ref: '#/components/schemas/EthereumAddress'
        collectedFees:
          $ref: '#/components/schemas/CollectedFees'
        historicTotalCollectedFeesUSD:
          type: number
          description: Sum of the all the fees collected, in USD, at the moment the batch was forged.
          example: 23.3
        stateRoot:
          allOf:
            - $ref: '#/components/schemas/Hash'
            - description: Root of the accounts Merkle Tree.
            - example: "2734657026572a8708d883"
        numAccounts:
          type: integer
          description: Number of registered accounts in this batch.
        exitRoot:
          allOf:
            - $ref: '#/components/schemas/Hash'
            - description: Root of the exit Merkle Tree associated to this batch.
            - example: "2734657026572a8708d883"
        forgeL1TransactionsNum:
          type: integer
          description: Identifier that corresponds to the group of L1 transactions forged in the current batch.
          example: 5
          nullable: true
        slotNum:
          $ref: '#/components/schemas/SlotNum'
      additionalProperties: false
      required:
          - itemId
          - batchNum
          - ethereumBlockNum
          - ethereumBlockHash
          - timestamp
          - forgerAddr
          - collectedFees
          - historicTotalCollectedFeesUSD
          - stateRoot
          - numAccounts
          - exitRoot
          - forgeL1TransactionsNum
          - slotNum
    FullBatch:
      type: object
      description: Group of transactions forged in a coordinator and sent and validated in Ethereum.
      properties:
        batch:
          $ref: '#/components/schemas/Batch'
        transactions:
          type: array
          description: List of forged transactions in the batch
          items:
            $ref: '#/components/schemas/HistoryTransaction'
      additionalProperties: false
      required:
        - batch
        - transactions
    Hash:
      type: string
      description: hashed data
      example: "2734657026572a8708d883"
    SlotNum:
      type: integer
      description: Identifier of a slot.
      minimum: 0
      maximum: 4294967295
      example: 784        
    Batches:
      type: object
      properties:
        batches:
          type: array
          description: List of batches.
          items:
            $ref: '#/components/schemas/Batch'
        pagination:
          $ref: '#/components/schemas/PaginationInfo'
      additionalProperties: false
      required:
        - batches
        - pagination
    Coordinator:
      type: object
      properties:
        itemId:
          $ref: '#/components/schemas/ItemId'
        forgerAddr:
          $ref: '#/components/schemas/EthereumAddress'
        bidderAddr:
          $ref: '#/components/schemas/EthereumAddress'
        URL:
          $ref: '#/components/schemas/URL'
        ethereumBlock:
          allOf:
            - $ref: '#/components/schemas/EthBlockNum'
            - description: Ethereum block in which the coordinator registered into the network.
            - example: 5735943738
      additionalProperties: false
      required:
        - itemId
        - forgerAddr
        - bidderAddr
        - URL
        - ethereumBlock
    Coordinators:
      type: object
      properties:
        coordinators:
          type: array
          description: List of coordinators.
          items: 
            $ref: '#/components/schemas/Coordinator'
        pagination:
          $ref: '#/components/schemas/PaginationInfo'
      additionalProperties: false
      required:
        - coordinators
        - pagination
    Bid:
      type: object
      description: Tokens placed in an auction by a coordinator to gain the right to forge batches during a specific slot.
      properties:
        itemId:
          $ref: '#/components/schemas/ItemId'
        bidderAddr:
          $ref: '#/components/schemas/EthereumAddress'
        forgerAddr:
          $ref: '#/components/schemas/EthereumAddress'
        slotNum:
          $ref: '#/components/schemas/SlotNum'
        URL:
          $ref: '#/components/schemas/URL'
        bidValue:
          $ref: '#/components/schemas/BigInt'
        ethereumBlockNum:
          $ref: '#/components/schemas/EthBlockNum'
        timestamp:
          type: string
          format: date-time
      additionalProperties: false
      require:
        - bidderAddr
        - forgerAddr
        - slotNum
        - URL
        - bidValue
        - ethereumBlockNum
        - timestamp
    Bids:
      type: object
      properties:
        bids:
          type: array
          description: List of bids.
          items: 
            $ref: '#/components/schemas/Bid'
        pagination:
          $ref: '#/components/schemas/PaginationInfo'
      additionalProperties: false
      require:
        - bids
        - pagination
    RecommendedFee:  
      type: object
      description: Fee that the coordinator recommends per transaction in USD.
      properties:
        existingAccount:
          type: number
          description: Recommended fee if the destination account of the transaction already exists.
          minimum: 0
          example: 0.1
        createAccount:
          type: number
          description: Recommended fee if the destination account of the transaction doesn't exist, but the coordinator has an authorization to create a valid account associated to an Ethereum address and a BJJ public key controlled by the receiver.
          minimum: 0
          example: 1.3
        createAccountInternal:
          type: number
          description: Recommended fee if the destination account of the transaction doesn't exist, but the coordinator has the ability to create a valid account associated to a BJJ public key controlled by the receiver. Note that these kind of accounts are not associated to an Ethereum address and therefore can only operate in L2. 
          minimum: 0
          example: 0.5
    Token:
      type: object
      description: Hermez network compatible and registered token.
      properties:
        id:
          $ref: '#/components/schemas/TokenId'
        ethereumAddress:
          allOf:
            - $ref: '#/components/schemas/EthereumAddress'
            - description: Ethereum address in which the token is deployed.
            - example: "0xaa942cfcd25ad4d90a62358b0dd84f33b398262a"
        itemId:
          $ref: '#/components/schemas/ItemId'
        name:
          type: string
          description: full name of the token
          example: Maker Dai
        symbol:
          allOf:
            - $ref: '#/components/schemas/TokenSymbol'
            - example: DAI
        decimals:
          type: integer
          description: Number of decimals of the token.
          example: 18
        ethereumBlockNum:
          allOf:
            - $ref: '#/components/schemas/EthBlockNum'
            - description: Ethereum block number in which the token was added to the Hermez network.
            - example: 539847538
        USD:
          type: number
          description: Value of the token in USD.
          example: 1.01
          nullable: true
        fiatUpdate:
          type: string
          format: date-time
          description: Timestamp of the moment the `USD` value was updated.
          nullable: true
      required:
        - id
        - ethereumAddress
        - itemId
        - name
        - symbol
        - decimals
        - ethereumBlockNum
        - USD
        - fiatUpdate
      additionalProperties: false
    Tokens:
      type: object
      properties:
        tokens:
          type: array
          description: List of tokens.
          items: 
            $ref: '#/components/schemas/Token'
        pagination:
          $ref: '#/components/schemas/PaginationInfo'
    Exit:
      type: object
      description: Exit tree leaf. It Contains the necessary information to perform a withdrawal.
      properties:
        batchNum:
          allOf:
            - $ref: '#/components/schemas/BatchNum'
            - description: Batch in which the exit was forged.
            - example: 7394
        accountIndex:
          $ref: '#/components/schemas/AccountIndex'
        itemId:
          $ref: '#/components/schemas/ItemId'
        merkleProof:
          type: object
          description: Existence proof of a leaf in a given Merkle Root. Encoded as hexadecimal string.
          properties:
              Root:
                $ref: '#/components/schemas/BigInt'
              Siblings:
                type: array
                items:
                  $ref: '#/components/schemas/BigInt'
              OldKey:
                $ref: '#/components/schemas/BigInt'
              OldValue:
                $ref: '#/components/schemas/BigInt'
              IsOld0:
                type: boolean
              Key:
                $ref: '#/components/schemas/BigInt'
              Value:
                $ref: '#/components/schemas/BigInt'
              Fnc:
                type: integer
                maximum: 3
                minimum: 0
          required:
            - Root
            - Siblings
            - OldKey
            - OldValue
            - IsOld0
            - Key
            - Value
            - Fnc
          additionalProperties: false
        balance:
          $ref: '#/components/schemas/BigInt'
        instantWithdrawn:
          type: integer
          description: Block in which the exit balance was instantly withdrawn. Null indicates that an instant withdrawn hasn't been performed.
          minimum: 0
          maximum: 1.84467440737096e+19
          example: 74747363
          nullable: true
        delayedWithdrawRequest:
          type: integer
          description: Block in which the exit balance was requested to delay withdraw. Null indicates that a delay withdraw hasn't been performed.
          minimum: 0
          maximum: 1.84467440737096e+19
          example: null
          nullable: true
        delayedWithdrawn:
          type: integer
          description: Block in which the exit balance was delayed withdrawn after a delay withdraw request. Null indicates that a delay withdraw hasn't been performed.
          minimum: 0
          maximum: 1.84467440737096e+19
          example: null
          nullable: true
        token:
          $ref: '#/components/schemas/Token'
      required:
          - batchNum
          - accountIndex
          - itemId
          - merkleProof
          - balance
          - instantWithdrawn
          - delayedWithdrawRequest
          - delayedWithdrawn
          - token
      additionalProperties: false
    Exits:
      type: object
      properties:
        exits:
          type: array
          description: List of exits.
          items: 
            $ref: '#/components/schemas/Exit'
        pagination:
          $ref: '#/components/schemas/PaginationInfo'   
      required:
          - exits
          - pagination
      additionalProperties: false 
    Account:
      type: object
      description: State tree leaf. It contains balance and nonce of an account.
      properties:
        accountIndex:
          $ref: '#/components/schemas/AccountIndex'
        nonce:
          $ref: '#/components/schemas/Nonce'      
        balance:
          $ref: '#/components/schemas/BigInt'
        bjj:
          $ref: '#/components/schemas/BJJ'      
        hezEthereumAddress:
          $ref: '#/components/schemas/HezEthereumAddress'
        token:
          $ref: '#/components/schemas/Token'
    Accounts:
      type: object
      properties:
        accounts:
          type: array
          description: List of accounts.
          items: 
            $ref: '#/components/schemas/Account'
        pagination:
          $ref: '#/components/schemas/PaginationInfo'
    Slot:
      type: object
      description: Slot information.
      properties:
        slotNum:
          $ref: '#/components/schemas/SlotNum'
        firstBlock:
          allOf:
            - $ref: '#/components/schemas/EthBlockNum'
            - description: Block in which the slot began or will begin
            - example: 76238647846
        lastBlock:
          allOf:
            - $ref: '#/components/schemas/EthBlockNum'
            - description: Block in which the slot ended or will end
            - example: 4475934
        closedAuction:
          type: boolean
          description: Whether the auction of the slot has finished or not.
        winner:
          allOf:
            - $ref: '#/components/schemas/Coordinator'
            - description: Coordinator who won the auction. Only applicable if the auction is closed.
            - nullable: true
            - example: null
    Slots:
      type: object
      properties:
        nextForgers:
          type: array
          description: List of slots.
          items: 
            $ref: '#/components/schemas/Slot'
        pagination:
          $ref: '#/components/schemas/PaginationInfo'
    NextForger:
      type: object
      description: Coordinator information along with the scheduled forging period
      properties:
        coordinator:
          $ref: '#/components/schemas/Coordinator'
        period:
          type: object
          description: Time period in which the coordinator will have the ability to forge. Specified both in Ethereum blocks and timestamp
          properties:
            fromBlock:
              $ref: '#/components/schemas/EthBlockNum'
            toBlock:
              $ref: '#/components/schemas/EthBlockNum'
            fromTimestamp:
              type: string
              format: date-time
            toTimestamp:
              type: string
              format: date-time
    NextForgers:
      type: object
      properties:
        nextForgers:
          type: array
          description: List of next coordinators to forge.
          items: 
            $ref: '#/components/schemas/NextForger'
        pagination:
          $ref: '#/components/schemas/PaginationInfo'
    State:
      type: object
      description: Gobal variables of the network
      properties:
        network:
          type: object
          description: Gobal statistics of the network
          properties:
            lastBlock:
              allOf:
                - $ref: '#/components/schemas/EthBlockNum'
                - description: Last synchronized Etherum block.
                - example: 3457437
            lastBatch:
              $ref: '#/components/schemas/Batch'
            currentSlot:
              allOf:
                - $ref: '#/components/schemas/SlotNum'
                - description: Slot where batches are currently being forged.
                - example: 2334
            nextForgers:
              $ref: '#/components/schemas/NextForgers'
          additionalProperties: false
          require: 
            - lastBlock
            - lastBatch
            - currentSlot
            - nextForgers
        metrics:
          type: object
          description: Metrics of the network
          properties:
            transactionsPerBatch:
              type: number
              description: Average transactions per batch in the last 24 hours.
              example: 2002.7
            batchFrequency:
              type: number
              description: Average elapsed time between batches in the last 24 hours, in seconds.
              example: 8.9
            transactionsPerSecond:
              type: number
              description: Average transactions per second in the last 24 hours.
              example: 302.3
            totalAccounts:
              type: integer
              description: Number of created accounts.
              example: 90473
            totalBJJs:
              type: integer
              description: Number of different registered BJJs.
              example: 23067
            avgTransactionFee:
              type: number
              description: Average fee percentage paid for L2 transactions in the last 24 hours.
              example: 1.54
          additionalProperties: false
          require:
            - transactionsPerBatch
            - batchFrequency
            - transactionsPerSecond
            - totalAccounts
            - totalBJJs
            - avgTransactionFee
        rollup:
          type: object
          description: Rollup parameters
          properties:
            forgeL1L2BatchTimeout:
              type: integer
              description: Max ethereum blocks after the last L1-L2-batch, when exceeds the timeout only L1-L2-batch are allowed.
              example: 5
            feeAddToken:
              type: integer
              description: Fee to pay when registering tokens into the network.
              example: 5698
            withdrawalDelay:
              type: integer
              description: Withdraw delay in seconds
              example: 432000
            buckets:
              type: array
              description: List of buckets state
              items:
                type: object
                properties:
                  ceilUSD:
                    type: integer
                    description: Max USD value
                    example: 1000
                  blockStamp:
                    type: integer
                    description: Last time a withdrawal was added ( or removed if the bucket was full)
                    example: 4475934
                  withdrawals:
                    type: integer
                    description: Available withdrawals of the bucket
                    example: 4
                  blockWithdrawalRate:
                    type: integer
                    description: Every `blockWithdrawalRate` blocks add 1 withdrawal
                    example: 8
                  maxWithdrawals:
                    type: integer
                    description: Max withdrawals the bucket can hold
                    example: 4
                additionalProperties: false
                require: 
                  - ceilUSD
                  - blockStamp
                  - withdrawals
                  - blockWithdrawalRate
                  - maxWithdrawals
          additionalProperties: false
          require: 
            - forgeL1L2BatchTimeout
            - feeAddToken
            - withdrawalDelay
            - buckets
        auction:
          type: object
          description: Auction parameters.
          properties:
            bootCoordinator:
              allOf:
                - $ref: '#/components/schemas/EthereumAddress'
                - description: Ethereum address of the boot coordinator.
                - example: "0x997dc4262BCDbf85190C01c996b4C06a461d2430"
            slotDeadline:
              type: integer
              description: Number of blocks after the beginning of a slot after which any coordinator can forge if the winner has not forged any batch in that slot.
              example: 3
            closedAuctionSlots:
              type: integer
              description: Amount of slots between the current slot and the slot auction that is closed. Example if the value is 2, when slot 10 begins, the auction of the slot 12 gets closed.
              example: 2
            openAuctionSlots:
              type: integer
              description: How many days in advance are auctions opened.
            defaultSlotSetBid:
              type: array
              description: "Initial minimal bid for each auction. Expressed as an array of 6 values. To calculate which value corresponds to each slot: `initialMinimalBidding[slotNum%6]`."
              items:
                type: integer
              example: [32,0,68,21,55,99]
            outbidding:
              type: number
              description: Minimum outbid over the previous one to consider it valid.
              example: 3.64
            donationAddress:
              allOf:
                - $ref: '#/components/schemas/EthereumAddress'
                - description: Ethereum address where the donations will go to.
                - example: "0x887dc4262BCDbf85190C01c996b4C06a461d2430"
            allocationRatio:
              type: array
              description: Percentage in which fees will be splitted between donations, governance and burning. The sum of the tree values should be 100.
              items:
                type: integer
              example: [80,10,10]
          additionalProperties: false
          require: 
            - bootCoordinator
            - slotDeadline
            - closedAuctionSlots
            - openAuctionSlots
            - defaultSlotSetBid
            - outbidding
            - donationAddress
            - allocationRatio
        withdrawalDelayer:
          type: object
          description: Withdrawal delayer parameters
          properties:
            hermezRollupAddress:
              allOf:
                - $ref: '#/components/schemas/EthereumAddress'
                - description: Ethereum address of the rollup smart contract.
                - example: "0x777dc4262BCDbf85190C01c996b4C06a461d2430"
            hermezGovernanceDAOAddress:
              allOf:
                - $ref: '#/components/schemas/EthereumAddress'
                - description: Ethereum address of the governance DAO.
                - example: "0x667dc4262BCDbf85190C01c996b4C06a461d2430"
            whiteHackGroupAddress:
              allOf:
                - $ref: '#/components/schemas/EthereumAddress'
                - description: Ethereum Address that can claim the funds in an emergency when the maximum emergency mode time is exceeded.
                - example: "0x557dc4262BCDbf85190C01c996b4C06a461d2430"
            hermezKeeperAddress:
              allOf:
                - $ref: '#/components/schemas/EthereumAddress'
                - description: Ethereum Address that can enable emergency mode and modify the delay to make a withdrawal.
                - example: "0x557dc4262BCDbf85190C01c996b4C06a461d2430"
            withdrawalDelay:
              allOf:
                - $ref: '#/components/schemas/EthBlockNum'
                - description: The time that anyone needs to wait until a withdrawal of the funds is allowed, in Ethereum blocks.
                - example: 539573849
            emergencyModeStartingTime:
              type: integer
              description: Ethereum block in which the emergency mode will be activated.
              example: 10
            emergencyMode:
              type: boolean
              description: Indicates if emergency mode has been activated.
              example: false
          additionalProperties: false
          require: 
            - hermezRollupAddress
            - hermezGovernanceDAOAddress
            - whiteHackGroupAddress
            - hermezKeeperAddress
            - withdrawalDelay
            - emergencyModeStartingTime
            - emergencyMode
        recommendedFee:
          $ref: '#/components/schemas/RecommendedFee'
      additionalProperties: false
      require: 
        - network
        - metrics
        - rollup
        - auction
        - withdrawalDelayer
        - recomendedFee 
    PaginationInfo:
      type: object
      description: Give pagination information
      properties:
        totalItems:
          type: integer
          description: Amount of items that the endpoint can return given the filters and the current state of the database.
          example: 2048
        firstItem:
          type: integer
          description: The smallest itemId that the endpoint will return with the given filters.
          example: 50
        lastItem:
          type: integer
          description: The greatest itemId that the endpoint will return with the given filters.
          example: 2130
    Config:
      type: object
      description: Configuration parameters of the different smart contracts that power the Hermez network.
      properties:
        hermez:
          type: object
          description: Constant configuration of the Hermez smart contract.
          properties:
            publicConstants:
              type: object
              description: Public Hermez smart contract constants
              properties: 
                tokenHEZ:
                  allOf:
                    - $ref: '#/components/schemas/EthereumAddress'
                    - description: Ethereum address of the HEZ token.
                    - example: "0x444dc4262BCDbf85190C01c996b4C06a461d2430"
                absoluteMaxL1L2BatchTimeout:
                  type: integer
                  description:  L1L2 Batch Timeout
                  example: 240
                verifiers:
                  type: array
                  description: List of verifiers struct
                  items:
                    type: object
                    properties:
                      maxTx:
                        type: integer
                        description: Maximum rollup transactions in a batch
                        example: 512
                      nlevels:
                        type: integer
                        description: Number of levels of the circuit
                        example: 32
                    required:
                      - maxTx
                      - nlevels
                    additionalProperties: false
                hermezAuctionContract:
                  allOf:
                    - $ref: '#/components/schemas/EthereumAddress'
                    - description: Ethereum address of the auction smart contract.
                    - example: "0x111dc4262BCDbf85190C01c996b4C06a461d2430"
                hermezGovernanceDAOAddress:
                  allOf:
                    - $ref: '#/components/schemas/EthereumAddress'
                    - description: Ethereum address of the governanceDAO.
                    - example: "0x222dc4262BCDbf85190C01c996b4C06a461d2430"
                safetyAddress:
                  allOf:
                    - $ref: '#/components/schemas/EthereumAddress'
                    - description: Ethereum address of the safety.
                    - example: "0x333dc4262BCDbf85190C01c996b4C06a461d2430"
                withdrawDelayerContract:
                  allOf:
                    - $ref: '#/components/schemas/EthereumAddress'
                    - description: Ethereum address of the withdraw delayer contracts.
                    - example: "0x444dc4262BCDbf85190C01c996b4C06a461d2430"
              required:
                - tokenHEZ
                - absoluteMaxL1L2BatchTimeout
                - verifiers
                - hermezAuctionContract
                - hermezGovernanceDAOAddress
                - safetyAddress
                - withdrawDelayerContract
              additionalProperties: false
            maxFeeIdxCoordinator:
              type: integer
              description: is the maximum number of tokens the coordinator can use to collect fees.
              example: 64
            reservedIdx:
              type: integer
              description: First 256 indexes reserved, first user index will be the 256.
              example: 255
            exitIdx:
              type: integer
              description: Account index used to indicate that a transaction is an `exit` or `force exit`.
              example: 1
            limitLoadAmount:
              type: integer
              description: Maximum load amount (L1 to L2) allowed.
              example: 321
            limitL2TransferAmount:
              type: integer
              description: Maximum amount (L2 to L2) allowed.
              example: 837
            limitTokens:
              type: integer
              description: Maximum number of different tokens that can be registered in the network.
              example: 4294967295
            l1CoordinatorTotalBytes:
              type: integer
              description: Number of bytes that a L1 coordinator transaction has ([4 bytes] token + [32 bytes] babyjub + [65 bytes] compressedSignature).
              example: 101
            l1UserTotalBytes:
              type: integer
              description: Number of bytes that a L1 user transaction has ([20 bytes] fromEthAddr + [32 bytes] fromBjj-compressed + [6 bytes] fromIdx + [2 bytes] loadAmountFloat16 + [2 bytes] amountFloat16 + [4 bytes] tokenId + [6 bytes] toIdx).
              example: 72
            maxL1UserTx:
              type: integer
              description: Maximum L1-user transactions allowed to be queued in a batch.
              example: 128
            maxL1Tx:
              type: integer
              description: Maximum L1 transactions allowed to be queued in a batch.
              example: 256
            inputSHAConstantBytes:
              type: integer
              description: Input SHA constant bytes 
              example: 18542
            numBuckets:
              type: integer
              description: Number of buckets
              example: 5
            maxWithdrawalDelay:
              type: integer
              description: Maximum delay to withdraw tokens. Time is measured in seconds.
              example: 2 * 7 * 24 * 60 * 60
            exchangeMultiplier:
              type: integer
              description: exchange multiplier
              example: 1e14
          required:
            - publicConstants
            - reservedIdx
            - exitIdx
            - limitLoadAmount
            - limitL2TransferAmount
            - limitTokens
            - l1CoordinatorTotalBytes
            - l1UserTotalBytes
            - maxL1UserTx
            - maxL1Tx
            - inputSHAConstantBytes
            - numBuckets
            - maxWithdrawalDelay
            - exchangeMultiplier
          additionalProperties: false
        auction:
          type: object
          description: Constant configuration of the auction smart contract.
          properties:
            blocksPerSlot:
              type: integer
              description: Blocks per slot.
            initialMinimalBidding:
              type: integer
              description: Minimum bid when no one has bid yet.
            genesisBlockNum:
              allOf:
                - $ref: '#/components/schemas/EthBlockNum'
                - description: Ethereum block number in which the smart contract starts operating.
            tokenHEZ:
              allOf:
                - $ref: '#/components/schemas/EthereumAddress'
                - description: Ethereum address of the HEZ token.
                - example: "0x333dc4262BCDbf85190C01c996b4C06a461d2430"
            hermezRollup:
              allOf:
                - $ref: '#/components/schemas/EthereumAddress'
                - description: Ethereum address of the rollup smart contract.
                - example: "0x222dc4262BCDbf85190C01c996b4C06a461d2430"
            governanceAddress:
              allOf:
                - $ref: '#/components/schemas/EthereumAddress'
                - description: Ethereum address of the governance.
                - example: "0x444dc4262BCDbf85190C01c996b4C06a461d2430"
          required:
            - blocksPerSlot
            - initialMinimalBidding
            - genesisBlockNum
            - tokenHEZ
            - hermezRollup
            - governanceAddress
          additionalProperties: false
        withdrawalDelayer:
          type: object
          description: Constant configuration of the withdrawal delayer smart contract.
          properties:
            maxWithdrawalDelay:
              type: integer
              description: Maximum time delay in which the tokens can be locked in the contract. Time is measured in Ethereum blocks.
              example: 200
            maxEmergencyModeTime:
              type: integer
              description: Maximum amount of time in which the contract can be in emergency mode. Time is measured in Ethereum blocks.
              example: 2000
            hermezRollup:
              allOf:
                - $ref: '#/components/schemas/EthereumAddress'
                - description: Ethereum address of the rollup smart contract.
                - example: "0x222dc4262BCDbf85190C01c996b4C06a461d2430"
          required:
            - maxWithdrawalDelay
            - maxEmergencyModeTime
            - hermezRollup
          additionalProperties: false
      required:
        - hermez
        - auction
        - withdrawalDelayer
      additionalProperties: false
    Error:
      type: object
      description: Error response. 
      properties:
        message:
          type: string
    Error400:
      allOf:
        - $ref: '#/components/schemas/Error'
        - example:
            message: Invalid signature.
    Error404:
      allOf:
        - $ref: '#/components/schemas/Error'
        - example:
            message: Item(s) not found.
    Error500:
      allOf:
        - $ref: '#/components/schemas/Error'
        - example:
            message: Database error.