registerMethodPromise support. Fixes #2

Author: dploeger

index.js

@@ -1,5 +1,5 @@
-var Promise = require("bluebird");
-var methodNamesToPromisify = "get post put delete patch".split(" ");
+var Promise = require('bluebird');
+var methodNamesToPromisify = 'get post put delete patch'.split(' ');
 var nodeRestClient = require('node-rest-client');
 
 /**
@@ -36,19 +36,42 @@ function EventEmitterPromisifier(originalMethod) {
             // listen to specific events leading to rejects
 
             emitter
-                .on("error", function (err) {
+                .on('error', function (err) {
                     reject(err);
                 })
-                .on("requestTimeout", function () {
+                .on('requestTimeout', function () {
                     reject(new Promise.TimeoutError());
                 })
-                .on("responseTimeout", function () {
+                .on('responseTimeout', function () {
                     reject(new Promise.TimeoutError());
                 });
         });
     };
 };
 
+var registerPromiseMethod = function (name, url, method) {
+    // create method in method registry with preconfigured REST invocation
+    // method
+
+    var self = this;
+
+    var PromisifiedMethod = function (url, method) {
+        var httpMethod = self[method.toLowerCase()];
+
+        return function (args) {
+            var completeURL = url;
+            if (!args) {
+                args = {};
+            }
+
+            // eslint-disable-next-line new-cap
+            return EventEmitterPromisifier(httpMethod)(completeURL, args);
+        };
+    };
+
+    this.methods[name] = new PromisifiedMethod(url, method);
+};
+
 /**
  * A simple wrapper around `new Client(options)`, returning a promisified
  * client object.
@@ -67,7 +90,11 @@ var client = function (options) {
         promisifier: EventEmitterPromisifier,
         suffix: 'Promise'
     });
+
+    promisifiedClient.registerMethodPromise =
+        registerPromiseMethod.bind(promisifiedClient);
+
     return promisifiedClient;
-}
+};
 
 exports.Client = client;

package.json

@@ -1,6 +1,6 @@
 {
   "name": "node-rest-client-promise",
-  "version": "3.0.0",
+  "version": "3.1.0",
   "description": "node-rest-client, but with promises",
   "main": "index.js",
   "scripts": {

test/promiseTest.js

@@ -1,12 +1,14 @@
-var chai = require("chai");
+var chai = require('chai');
+var Promise = require('bluebird');
 var nodeRestPromised = require('../index');
-var it = require("mocha").it;
-var describe = require("mocha").describe;
+var it = require('mocha').it;
+var describe = require('mocha').describe;
 
 var should = chai.should();
 describe('node-rest-client-promise', function () {
     describe('client', function () {
         it('should generate the promisified methods', function () {
+            // eslint-disable-next-line new-cap
             var client = nodeRestPromised.Client({});
 
             client.should.hasOwnProperty(
@@ -36,21 +38,14 @@ describe('node-rest-client-promise', function () {
 
         });
 
-        it('should provide working promises', function (done) {
+        it('should provide working promises', function () {
 
+            // eslint-disable-next-line new-cap
             var client = nodeRestPromised.Client({});
 
-            client.getPromise(
+            return client.getPromise(
                 'https://www.google.de'
             )
-                .catch(
-                    function (error) {
-                        should.not.exist(
-                            error,
-                            'Got error: ' + error.message
-                        );
-                    }
-                )
                 .then(
                     function (result) {
                         result.response.statusCode
@@ -65,4 +60,24 @@ describe('node-rest-client-promise', function () {
 
         });
     });
+    describe('client#registerMethod', function() {
+        it('should add a promise', function () {
+            // eslint-disable-next-line new-cap
+            var client = nodeRestPromised.Client({});
+
+            client.registerMethodPromise(
+                'testMethod', 'https://somedomain', 'GET'
+            );
+
+            return client.methods.testMethod()
+                .catch(
+                    function (e) {
+                        return e.code === 'ENOTFOUND';
+                    },
+                    function () {
+                        return Promise.resolve();
+                    }
+                );
+        });
+    });
 });