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javascriptnode.jshttpresponserestler

Getting HTTP Response using restler in Node.js

I don't understand why this code doesn't work for me 

var rest = require('restler');

var getResp = function(url){
        var resp ="";
        rest.get(url).on('complete',function(response){
          resp = response.toString();
        });
        return resp;
    };

I am not getting the response for getResp('google.com')

Am I missing something with restler?

Solution

  • Being that you're returning resp it looks like you've forgotten that the request is asynchronous. Instead try out this:

    var rest = require('restler');

var getResp = function(url){
  rest.get(url).on('complete', function(response){
    console.log(response);
  });
};

getResp('http://google.com/');

// output:
// <!doctype html><html itemscope="itemscope" ....

    Because of its asynchronous nature it's preferred that you pass the value to a receiving callback. Take this small example:

    var rest = require('restler');

// process an array of URLs
['http://google.com/',
'http://facebook.com/'].forEach(function(item) {
  getResp(item);
});

function getResp(url){
  rest.get(url).on('complete', function(response){
    processResponse(response);
  });
};

// data will be a Buffer
function processResponse(data) {
  // converting Buffers to strings is expensive, so I prefer
  // to do it explicitely when required
  var str = data.toString();
}

    Once the data comes in you'll be able to pass it around like any other variable.