@@ -91,6 +91,28 @@ //set the next block
 		blockHash = block.NextHash
 
 		//analyze block creator
+		for _, t := range newBlock.Tx {
+			var n1 NodeModel
+			var n2 NodeModel
+			n1.Id = t.From
+			n1.Label = t.From
+			n1.Value = 1
+			n1.Shape = "dot"
+			n2.Id = t.To
+			n2.Label = t.To
+			n2.Value = 1
+			n2.Shape = "dot"
+
+			var e EdgeModel
+			e.From = t.From
+			e.To = t.To
+			e.Label = t.Amount
+			e.Txid = t.Txid
+
+			saveNode(nodeCollection, n1)
+			saveNode(nodeCollection, n2)
+			saveEdge(edgeCollection, e)
+		}
 
 	}
 	fmt.Print("realBlocks (blocks with Fee and Amount values): ")

@@ -0,0 +1,30 @@
+package main
+
+import (
+	"errors"
+	"fmt"
+	"net/http"
+	"strings"
+)
+
+func ipFilter(w http.ResponseWriter, r *http.Request) {
+	var err error
+	fmt.Println(r.RemoteAddr)
+	reqIP := strings.Split(r.RemoteAddr, ":")[0]
+	for _, ip := range serverConfig.BlockedIPs {
+		if reqIP == ip {
+			err = errors.New("ip not allowed to post images")
+		}
+	}
+
+	for _, ip := range serverConfig.AllowedIPs {
+		if reqIP != ip {
+			err = errors.New("ip not allowed to post images")
+		}
+	}
+	//return err
+	if err != nil {
+		fmt.Fprintln(w, err.Error())
+		return
+	}
+}

@@ -1,11 +1,15 @@
 package main
 
 import (
+	"fmt"
 	"log"
+	"net/http"
+	"os"
 
 	mgo "gopkg.in/mgo.v2"
 
 	"github.com/btcsuite/btcrpcclient"
+	"github.com/fatih/color"
 )
 
 var blockCollection *mgo.Collection
@@ -45,8 +49,12 @@ // iterate over accounts (map[string]btcutil.Amount) and write to stdout
 	for label, amount := range accounts {
 		log.Printf("%s: %s", label, amount)
 	}
-
-	explore(client, config.GenesisBlock)
+	if len(os.Args) > 1 {
+		if os.Args[1] == "-explore" {
+			fmt.Println("starting to explore blockchain")
+			explore(client, config.GenesisBlock)
+		}
+	}
 
 	// Get the current block count.
 	blockCount, err := client.GetBlockCount()
@@ -54,4 +62,11 @@ if err != nil {
 		log.Fatal(err)
 	}
 	log.Printf("Block count: %d", blockCount)
+
+	//http server start
+	readServerConfig("./serverConfig.json")
+	color.Green("server running")
+	router := NewRouter()
+	log.Fatal(http.ListenAndServe(":"+serverConfig.ServerPort, router))
+
 }

@@ -25,8 +25,13 @@ Shape string
 }
 
 type EdgeModel struct {
+	Txid   string
 	From   string
 	To     string
-	Label  string
+	Label  float64
 	Arrows string
 }
+type NetworkModel struct {
+	Nodes []NodeModel
+	Edges []EdgeModel
+}

@@ -63,13 +63,48 @@ }
 	}
 
 }
-func saveNode(c *mgo.Collection, block BlockModel) {
-	var node NodeModel
-	node.Id = block.Hash
-	node.Label = block.Hash
-	node.Title = block.Hash
-	node.Value = 1
-	node.Shape = "dot"
+
+func getAllNodes() ([]NodeModel, error) {
+	result := []NodeModel{}
+	iter := nodeCollection.Find(bson.M{}).Limit(500).Iter()
+	err := iter.All(&result)
+	return result, err
+}
+
+func saveNode(c *mgo.Collection, node NodeModel) {
+	//first, check if the node already exists
+	result := NodeModel{}
+	err := c.Find(bson.M{"id": node.Id}).One(&result)
+	if err != nil {
+		//node not found, so let's add a new entry
+		err = c.Insert(node)
+		check(err)
+	} else {
+		err = c.Update(bson.M{"id": node.Id}, &node)
+		if err != nil {
+			log.Fatal(err)
+		}
+	}
+}
+
+func getAllEdges() ([]EdgeModel, error) {
+	result := []EdgeModel{}
+	iter := edgeCollection.Find(bson.M{}).Limit(500).Iter()
+	err := iter.All(&result)
+	return result, err
 }
-func saveEdge(c *mgo.Collection, block BlockModel) {
+func saveEdge(c *mgo.Collection, edge EdgeModel) {
+	//first, check if the edge already exists
+	result := EdgeModel{}
+	err := c.Find(bson.M{"txid": edge.Txid}).One(&result)
+	if err != nil {
+		//edge not found, so let's add a new entry
+		err = c.Insert(edge)
+		check(err)
+	} else {
+		err = c.Update(bson.M{"txid": edge.Txid}, &edge)
+		if err != nil {
+			log.Fatal(err)
+		}
+	}
 }

@@ -0,0 +1,69 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"time"
+
+	"github.com/gorilla/mux"
+)
+
+type Route struct {
+	Name        string
+	Method      string
+	Pattern     string
+	HandlerFunc http.HandlerFunc
+}
+
+//server config
+type ServerConfig struct {
+	ServerIP   string   `json:"serverIP"`
+	ServerPort string   `json:"serverPort"`
+	AllowedIPs []string `json:"allowedIPs"`
+	BlockedIPs []string `json:"blockedIPs"`
+}
+
+var serverConfig ServerConfig
+
+func readServerConfig(path string) {
+	file, err := ioutil.ReadFile(path)
+	if err != nil {
+		fmt.Println("error: ", err)
+	}
+	content := string(file)
+	json.Unmarshal([]byte(content), &serverConfig)
+}
+
+func Logger(inner http.Handler, name string) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		start := time.Now()
+
+		inner.ServeHTTP(w, r)
+
+		log.Printf(
+			"%s\t%s\t%s\t%s",
+			r.Method,
+			r.RequestURI,
+			name,
+			time.Since(start),
+		)
+	})
+}
+func NewRouter() *mux.Router {
+	router := mux.NewRouter().StrictSlash(true)
+	for _, route := range routes {
+		var handler http.Handler
+		handler = route.HandlerFunc
+		handler = Logger(handler, route.Name)
+
+		router.
+			Methods(route.Method).
+			Path(route.Pattern).
+			Name(route.Name).
+			Handler(handler)
+	}
+	return router
+}

@@ -0,0 +1,117 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+)
+
+type Routes []Route
+
+var routes = Routes{
+	Route{
+		"Index",
+		"GET",
+		"/",
+		Index,
+	},
+	/*	Route{
+			"Recommendations",
+			"GET",
+			"/r/{userid}/{nrec}",
+			Recommendations,
+		},
+	*/
+	Route{
+		"NetworkMap",
+		"Get",
+		"/map",
+		NetworkMap,
+	},
+	/*
+		Route{
+			"SelectItem",
+			"GET",
+			"/selectItem/{userid}/{itemid}",
+			SelectItem,
+		},
+	*/
+}
+
+//ROUTES
+
+func Index(w http.ResponseWriter, r *http.Request) {
+	fmt.Fprintln(w, "ask for recommendations in /r")
+}
+
+/*
+func NewUser(w http.ResponseWriter, r *http.Request) {
+	ipFilter(w, r)
+	decoder := json.NewDecoder(r.Body)
+	var newUser UserModel
+	err := decoder.Decode(&newUser)
+	check(err)
+	defer r.Body.Close()
+
+	saveUser(userCollection, newUser)
+
+	fmt.Println(newUser)
+	fmt.Fprintln(w, "new user added: ", newUser.ID)
+}
+*/
+func NetworkMap(w http.ResponseWriter, r *http.Request) {
+	ipFilter(w, r)
+
+	nodes, err := getAllNodes()
+	check(err)
+	edges, err := getAllEdges()
+	check(err)
+
+	var network NetworkModel
+	network.Nodes = nodes
+	network.Edges = edges
+
+	//convert []resp struct to json
+	jNetwork, err := json.Marshal(network)
+	check(err)
+
+	fmt.Fprintln(w, string(jNetwork))
+}
+
+/*
+func SelectItem(w http.ResponseWriter, r *http.Request) {
+	ipFilter(w, r)
+	vars := mux.Vars(r)
+	userid := vars["userid"]
+	itemid := vars["itemid"]
+	//find item
+	item, err := getItemById(itemid)
+	if err != nil {
+		fmt.Fprintln(w, "item "+itemid+" not found")
+	}
+
+	//find user
+	user, err := getUserById(userid)
+	if err != nil {
+		fmt.Fprintln(w, "user "+userid+" not found")
+	}
+
+	//increase TActed in item
+	item.TActed = item.TActed + 1
+
+	//save item
+	item, err = updateItem(item)
+	check(err)
+	fmt.Println(item)
+
+	//add item to []Actions of user
+	user.Actions = append(user.Actions, itemid)
+
+	//save user
+	user, err = updateUser(user)
+	check(err)
+	fmt.Println(user)
+
+	fmt.Fprintln(w, "user: "+userid+", selects item: "+itemid)
+}
+*/