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Merge pull request #270 from hermeznetwork/feature/api-state-metrics

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API State Metrics
This commit is contained in:
a_bennassar
2020-11-09 16:54:25 +01:00
committed by GitHub
parent 8190755d49 55a78fbd72
commit a1b9720e77
4 changed files with 64 additions and 6 deletions
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34
db/historydb/historydb.go
View File

@@ -1463,7 +1463,37 @@ func (hdb *HistoryDB) GetAccountsAPI(
}
// GetMetrics returns metrics
func (hdb *HistoryDB) GetMetrics() (Metrics, error) {
metrics := Metrics{}
func (hdb *HistoryDB) GetMetrics(lastBatchNum common.BatchNum) (*Metrics, error) {
metricsTotals := &MetricsTotals{}
metrics := &Metrics{}
err := meddler.QueryRow(
hdb.db, metricsTotals, `SELECT COUNT(tx.*) as total_txs, MIN(tx.batch_num) as batch_num
FROM tx INNER JOIN block ON tx.eth_block_num = block.eth_block_num
WHERE block.timestamp >= NOW() - INTERVAL '24 HOURS';`)
if err != nil {
return nil, err
}
metrics.TransactionsPerSecond = float64(metricsTotals.TotalTransactions / (24 * 60 * 60))
metrics.TransactionsPerBatch = float64(int64(metricsTotals.TotalTransactions) / int64(lastBatchNum-metricsTotals.FirstBatchNum))
err = meddler.QueryRow(
hdb.db, metricsTotals, `SELECT COUNT(*) AS total_batches,
SUM(total_fees_usd) AS total_fees FROM batch
WHERE batch_num > $1;`, metricsTotals.FirstBatchNum)
if err != nil {
return nil, err
}
metrics.BatchFrequency = float64((24 * 60 * 60) / metricsTotals.TotalBatches)
metrics.AvgTransactionFee = metricsTotals.TotalFeesUSD / float64(metricsTotals.TotalTransactions)
err = meddler.QueryRow(
hdb.db, metrics,
`SELECT COUNT(*) AS total_bjjs, COUNT(DISTINCT(bjj)) AS total_accounts FROM account;`)
if err != nil {
return nil, err
}
return metrics, nil
}

13
db/historydb/views.go
View File

@@ -303,11 +303,20 @@ type Metrics struct {
TransactionsPerBatch float64 `json:"transactionsPerBatch"`
BatchFrequency float64 `json:"batchFrequency"`
TransactionsPerSecond float64 `json:"transactionsPerSecond"`
TotalAccounts int64 `json:"totalAccounts"`
TotalBJJs int64 `json:"totalBJJs"`
TotalAccounts int64 `json:"totalAccounts" meddler:"total_accounts"`
TotalBJJs int64 `json:"totalBJJs" meddler:"total_bjjs"`
AvgTransactionFee float64 `json:"avgTransactionFee"`
}
// MetricsTotals is used to get temporal information from HistoryDB
// to calculate data to be stored into the Metrics struct
type MetricsTotals struct {
TotalTransactions uint64 `meddler:"total_txs"`
FirstBatchNum common.BatchNum `meddler:"batch_num"`
TotalBatches int64 `meddler:"total_batches"`
TotalFeesUSD float64 `meddler:"total_fees"`
}
// BidAPI is a representation of a bid with additional information
// required by the API
type BidAPI struct {