Calling multiple HTTP requests in a single HTTP request in Node.js

Question

I am trying to call multiple URL in a single URL call and push it\'s json response in an array and send that array in response to the end user.

My code look like

Answer 1

I suggest to use the async library.

async.map(urls, http.get, function(err, responses){
  if (err){
    // handle error
  }
  else {
    res.send responses
  }
})

The snippet above will perform a http.get call for each of the urls in parallel, and will call your callback function with the results of all of the calls after all the responses were received.

If you want to call the urls in series, you can use async.mapSeries instead. If you want to limit the number of concurrent requests you can use async.mapLimit.