Add blockchain account endpoint

lib/core/engine.js

@@ -231,6 +231,7 @@ class Engine {
 
     this.registerModule('blockchain_connector', {
       isDev: this.isDev,
+      plugins: this.plugins,
       web3: options.web3
     });
 

lib/modules/blockchain_connector/index.js

@@ -35,6 +35,7 @@ class BlockchainConnector {
     }
     this.registerServiceCheck();
     this.registerRequests();
+    this.registerAPIRequests();
     this.registerWeb3Object();
     this.registerEvents();
   }
@@ -167,6 +168,52 @@ class BlockchainConnector {
     });
   }
 
+  registerAPIRequests() {
+    const self = this;
+
+    let plugin = self.plugins.createPlugin('blockchain', {});
+    plugin.registerAPICall(
+      'get',
+      '/embark/blockchain/accounts',
+      (req, res) => {
+        let results = [];
+        self.getAccounts((err, addresses) => {
+          async.eachOf(addresses, (address, index, eachCb) => {
+            let result = {address, index};
+            results.push(result);
+            async.waterfall([
+              function(callback) {
+                self.getTransactionCount(address, (err, count) => {
+                  if (err) {
+                    result.transactionCount = 0;
+                  } else {
+                    result.transactionCount = count;
+                  }
+                  callback();
+                });
+              },
+              function(callback) {
+                self.getBalance(address, (err, balance) => {
+                  if (err) {
+                    result.balance = 0;
+                  } else {
+                    result.balance = self.web3.utils.fromWei(balance);
+                  }
+                  callback();
+                });
+              }
+            ], function () {
+              eachCb();
+            });
+          }, function () {
+            res.send(results);
+          });
+        });
+      }
+    );
+  }
+
+
   defaultAccount() {
     return this.web3.eth.defaultAccount;
   }
@@ -179,6 +226,14 @@ class BlockchainConnector {
     this.web3.eth.getAccounts(cb);
   }
 
+  getTransactionCount(address, cb) {
+    this.web3.eth.getTransactionCount(address, cb);
+  }
+
+  getBalance(address, cb) {
+    this.web3.eth.getBalance(address, cb);
+  }
+
   getCode(address, cb) {
     this.web3.eth.getCode(address, cb);
   }