jsonrpc.js file && batch polling

lib/providermanager.js

@@ -23,7 +23,9 @@
  * @date 2014
  */
 
-var web3 = require('./web3'); // jshint ignore:line
+var web3 = require('./web3'); 
+var jsonrpc = require('./jsonrpc');
+
 
 /**
  * Provider manager object prototype
@@ -37,21 +39,34 @@ var web3 = require('./web3'); // jshint ignore:line
 var ProviderManager = function() {
     this.polls = [];
     this.provider = undefined;
-    this.id = 1;
 
     var self = this;
     var poll = function () {
         if (self.provider) {
-            self.polls.forEach(function (data) {
-                var result = self.send(data.data);
-            
+            var pollsBatch = self.polls.map(function (data) {
+                return data.data;
+            });
+
+            var payload = jsonrpc.toBatchPayload(pollsBatch);
+            var results = self.provider.send(payload);
+
+            self.polls.forEach(function (data, index) {
+                var result = results[index];
+                
+                if (!jsonrpc.isValidResponse(result)) {
+                    return;
+                }
+
+                result = result.result;
                 // dont call the callback if result is not an array, or empty one
                 if (!(result instanceof Array) || result.length === 0) {
                     return;
                 }
 
                 data.callback(result);
+
             });
+
         }
         setTimeout(poll, 1000);
     };
@@ -61,21 +76,16 @@ var ProviderManager = function() {
 /// sends outgoing requests
 /// @params data - an object with at least 'method' property
 ProviderManager.prototype.send = function(data) {
-
-    data.jsonrpc = '2.0';
-    data.params = data.params || [];
-    data.id = this.id++;
+    var payload = jsonrpc.toPayload(data.method, data.params);
 
     if (this.provider === undefined) {
         console.error('provider is not set');
         return null; 
     }
 
-    //TODO: handle error here? 
-    var result = this.provider.send(data);
-    result = JSON.parse(result);
+    var result = this.provider.send(payload);
 
-    if (result.error) {
+    if (!jsonrpc.isValidResponse(result)) {
         console.log(result.error);
         return null;
     }