node.js +发布请求

Question

I am trying to call post data method of another application(which is running in localhost:3000) using node.js. But its returning error..

The following is the code:

var options = {
  host: 'localhost',
  path: '/v1/key/11111111',
  //since we are listening on a custom port, we need to specify it by hand
  port: '3000',
  //This is what changes the request to a POST request
  method: 'POST',  
  headers: {'Content-Type': 'application/json'}
};

callback = function(response) {
  var str = ''
  response.on('data', function (chunk) {
    str += chunk;
  });

  response.on('end', function () {
    console.log(str);
  });
}

var req = http.request(options, callback);
//This is the data we are posting, it needs to be a string or a buffer
req.write("hello world!");
req.end();

But i am receiving error:

{"meta":{"version":1,"status_code":400},"results":{"error":{"type":"Error","message":"invalid json"}}}

When i am trying using CURL command i am getting the desired result:

curl -X POST  localhost:3000/v1/key/12345678 --header "Content-Type:application/json"

My question is how i have to construct POST request for the above requirement .

Answer 1

You specify 'application/json' in the request options. But you provide the string "Hello world!", which is not json, and that's what the error message tells you.

Try changing the header or the content.