Merge pull request #375 from pnagurny/feature/estimateFee

v0.3.0 add estimateFee route

lib/index.js

@@ -7,6 +7,7 @@ var TxController = require('./transactions');
 var AddressController = require('./addresses');
 var StatusController = require('./status');
 var MessagesController = require('./messages');
+var UtilsController = require('./utils');
 var bitcore = require('bitcore');
 var $ = bitcore.util.preconditions;
 var Transaction = bitcore.Transaction;
@@ -84,11 +85,11 @@ InsightAPI.prototype.setupRoutes = function(app) {
   app.post('/messages/verify', messages.verify.bind(messages));
 
   // Utils route
-  /*var utils = require('../app/controllers/utils');
-  app.get(apiPrefix + '/utils/estimatefee', utils.estimateFee);
+  var utils = new UtilsController(this.node);
+  app.get('/utils/estimatefee', utils.estimateFee.bind(utils));
 
   // Currency
-  var currency = require('../app/controllers/currency');
+  /*var currency = require('../app/controllers/currency');
   app.get(apiPrefix + '/currency', currency.index);
 
   // Email store plugin

lib/utils.js

@@ -0,0 +1,21 @@
+'use strict';
+var _ = require('lodash');
+
+function UtilsController(node) {
+  this.node = node;
+}
+
+UtilsController.prototype.estimateFee = function(req, res) {
+  var self = this;
+  var args = req.query.nbBlocks || '2';
+  var nbBlocks = args.split(',');
+
+  var result = nbBlocks.map(function(n) {
+    var num = parseInt(n);
+    return [num, self.node.services.bitcoind.estimateFee(num)];
+  });
+
+  res.jsonp(_.zipObject(result));
+};
+
+module.exports = UtilsController;

test/utils.js

@@ -0,0 +1,41 @@
+'use strict';
+
+var sinon = require('sinon');
+var should = require('should');
+var UtilsController = require('../lib/utils');
+
+describe('Utils', function() {
+  describe('/utils/estimatefee', function() {
+    it('should give the correct fee', function(done) {
+      var node = {
+        services: {
+          bitcoind: {
+            estimateFee: function(blocks) {
+              switch(blocks) {
+                case 1:
+                  return 1000;
+                case 3:
+                  return 3000;
+              }
+            }
+          }
+        }
+      };
+      var utils = new UtilsController(node);
+
+      var req = {
+        query: {
+          nbBlocks: '1, 3'
+        }
+      };
+
+      var res = {
+        jsonp: function(fees) {
+          should(fees).eql({1: 1000, 3: 3000});
+          done();
+        }
+      }
+      utils.estimateFee(req, res);
+    });
+  });
+});