Accessing parameters of request object at cloud end : getting req.params empty

[gauri....@gmail.com]

Hi,

I created Node.ACS project(cloud end) to implement custom cloud services & Titanium mobile project (client end) from which I used to call the cloud services which I have implemented at cloud side. Following are the steps which I have followed to achieve this client & cloud interaction. After that I have mentioned the problem.

1. Created new Node.ACS Project ‘MyCloud'

2. Added a New Service 'greet' & its code is as below:

file name: services.js

function greet(req, res) {

console.log('In greet method:' );

var no = req.params.number1;

var no2 = req.params.number2;

var jsonObj = {

"result" : no + no2,

"status": 200

};

res.json(jsonObj);

};

My config.js file looks like this:

{

    "routes": [ {

        "path": "/",

        "callback": "application#index"

    }, {

        "path": "/greet",

        "method": "post",

        "callback": "services#greet"

    } ],

    "filters": [ {

        "path": "/",

        "callback": ""

    } ],

    "websockets": [ {

        "event": "",

        "callback": ""

    } ]

}

3. Published App & got a full url:https://<appid>.cloudapp.appcelerator.com

4. Created a New Mobile App ‘MyClient’

5. Imported the Node Project into a index.js in Titanium

6. I see the code that got added to index.js which now looks like this:

// @autogenerated:start:ti.cloud.MyCloud

var MyCloud = require("ti.cloud.MyCloud");

// @autogenerated:end:ti.cloud.MyCloud

function doClick(e) {  

    var params = {

    "number1" : 5,

    "number2" : 10

    }

    var greet_resp = MyCloud.services_greet(params, function  (r,e) {

      

      alert('callback' + JSON.stringify(r));

    });

    

}

$.index.open();

My ti.cloud.MyCloud.js looks like:

function InvokeService(path, method, data, cb) {

    if ("function" == typeof data) {

        cb = data;

        data = null;

    }

    var xhr = Ti.Network.createHTTPClient();

    "function" == typeof cb && (xhr.onload = function(e) {

        var r = this.responseText;

        if (-1 != xhr.getResponseHeader("content-type").indexOf("json")) try {

            r = JSON.parse(r);

        } catch (E) {}

        cb(r, e);

    });

    "/" == exports.URL.match("/$") && 0 == path.indexOf("/") ? xhr.open(method, exports.URL + path.substring(1)) : xhr.open(method, exports.URL + path);

    xhr.send(data);

}

var url = Ti.App.Properties.getString("acs-service-baseurl-MyCloud");

alert("URL" + url);

exports.URL = url && url.replace(/^\s+|\s+$/g, "") ? url.replace(/^\s+|\s+$/g, "") : "http://localhost:8080";

exports.application_index = function(data, cb) {

    InvokeService("/", "GET", data, cb);

};

exports.services_greet = function(data, cb) {

    alert("data : " + JSON.stringify(data) + "type" + typeof data);

    InvokeService("/greet", "POST", data, cb);

};

Problem:

On cloud end, in greet() function in services.js file I tried to access the number1 & number2 parameters but i got the req.params empty. What is the structure of req object? How can i access the values sent from client side?

When I executed JSON.stringify(req), it returned  "TypeError: Converting circular structure to JSON" error.

When I executed JSON.stringify(req.params), it gave me the "[]" on console .

Please provide some solution for accessing request parameters.

[Peter Lee]

If you are sending parameter as post data, it should be on req.body.

http://expressjs.com/api.html#req.body

[gauri...@mindstix.com]

Thanks Peter, Problem solved.. Thanks for quick reply & useful link !!!