From be87247c766038c0806a3bb7f8282235a3d571b4 Mon Sep 17 00:00:00 2001
From: Brett Langdon <brett@blangdon.com>
Date: Wed, 27 Mar 2013 15:06:19 -0400
Subject: [PATCH] functioning http_client.request

---
 lib/http_client.js | 84 +++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 80 insertions(+), 4 deletions(-)

diff --git a/lib/http_client.js b/lib/http_client.js
index cd6a31b..9212f9e 100644
--- a/lib/http_client.js
+++ b/lib/http_client.js
@@ -1,4 +1,7 @@
+var extend = require('extend');
 var https = require('https');
+var url = require('url');
+var util = require('util');
 var v8type = require('v8type');
 
 
@@ -13,7 +16,7 @@ var client = function(options){
      *      'api_key': 'datadog api key',
      *      'app_key': 'datadog app key',
      *      'api_version': 'default is v1',
-     *      'api_host': 'default is https://app.datadoghq.com',
+     *      'api_host': 'default is app.datadoghq.com',
      *    }
      *
      * this client also allows you to provide these options as
@@ -43,17 +46,90 @@ var client = function(options){
 
     this.api_host = (options['api_host'])? options['api_host'] : process.env['DD_API_HOST'];
     if(!this.api_host){
-	this.api_host = 'https://app.datadoghq.com';
+	this.api_host = 'app.datadoghq.com';
     }
 
 
 };
 
-client.prototype.request = function(method, url, params, callback){
+client.prototype.request = function(method, path, params, callback){
+    /*
+     * http_client.request(method, path, [[params], callback])
+     *
+     * method used to send an http request to the datadog api service
+     *
+     * `method` is the http method to use ('POST', 'GET', 'DELETE', etc)
+     * `path` the api url to call, e.g '/events', '/series', '/dash', etc
+     * `params` an optional object of additional options:
+     *     {
+     *       'query': { 'key': 'value' },
+     *       'body': { 'json/object': 'body' } or 'string body',
+     *     }
+     * `callback` an optional function to obtain the results of the api call
+     *     callback(error, result)
+    */
     if(arguments.length == 3 && v8type.is(arguments[2], v8type.FUNCTION)){
-	params = {};
 	callback = arguments[2];
+	params = {};
+    }
+
+    params = params || {};
+    var body = v8type.is(params['body'], v8type.OBJECT)? JSON.stringify(params['body']) : params['body'];
+    var query = {
+	'api_key': this.api_key,
+	'application_key': this.app_key,
+    };
+
+    if(v8type.is(params['query'], v8type.OBJECT)){
+	extend(query, params['query']);
+    }
+
+    path = url.format({
+	'pathname': util.format('/api/%s%s', this.api_version, path),
+	'query': query,
+    });
+
+    var http_options = {
+	hostname: this.api_host,
+	port: 443,
+	method: method.toUpperCase(),
+	path: path,
+    };
+
+    if(http_options['method'] == 'POST'){
+	http_options['headers'] = {
+	    'Content-Type': 'application/json',
+	    'Content-Length': body.length,
+	};
+    }
+
+    var req = https.request(http_options, function(res){
+	res.on('error', function(err){
+	    if(v8type.is(callback, v8type.FUNCTION)){
+		callback(err, null, res.statusCode);
+	    }
+	});
+
+	var data = '';
+	res.on('data', function(chunk){
+	    data += chunk;
+	});
+
+	res.on('end', function(){
+	    if(res.headers['content-type'] == 'application/json'){
+		data = JSON.parse(data);
+	    }
+
+	    if(v8type.is(callback, v8type.FUNCTION)){
+		callback(null, data, res.statusCode);
+	    }
+	});
+    });
+
+    if(http_options['method'] == 'POST'){
+	req.write(body);
     }
+    req.end()
 };
 
 return module.exports = client;