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JavaScript Node.js Basics (2014) Building a Command Line Application Getting the Response Body

Anusha Singh
Anusha Singh
Courses Plus Student 22,106 Points

I can't understand this

The question is { Without renaming any of the variables, modify the data callback to concatenate the stream of data to the responseBody. }

var http = require("http");
var request = http.get("http://teamtreehouse.com/chalkers.json", function(response){
    var responseBody = "";

    response.on("data", function(dataChunk) {


    response.on("", function(){


request.on("error", function(error){

The data callback is the block where "dataChunk" goes in. This is the block where the magic happens. You have to add the response information from dataChunk to the responseBody variable.

Hope that helps.

Best Magnus

1 Answer

Steven Parker
Steven Parker
229,921 Points

The comment above is a good hint, and they left you a blank line inside the data callback function to put your code. Remember that concatenation is "adding to" rather than just assigning.

So if you're still stuck after the hints...


    response.on("data", function(dataChunk) {
      responseBody += dataChunk;