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JavaScript Node.js Basics 2017 Building a Command Line Application Parsing JSON

aleti chaitanya
aleti chaitanya
3,588 Points
Posted by aleti chaitanya
aleti chaitanya
3,588 Points

Unexpected token i in JSON at position 1:

i cannot parse the json data in the below code. please help me i am getting "Unexpected token i in JSON at position 1" when ever i want to parse the data into json object.

var https = require("https"); var username = "aletichaitanya";

https.get(https://teamtreehouse.com/${username}.json, res => { console.log(res.statusCode); var body; res.on("data", d => { body = d.toString(); }); res.on("end", () => { var parsing = JSON.parse(body); console.log(parsing); }); });

this is the error message that pops up in the terminal:

SyntaxError: Unexpected token i in JSON at position 1 at JSON.parse (<anonymous>) at IncomingMessage.res.on (F:\chaitu\web tech practise\js\js.js:12:24) at emitNone (events.js:111:20) at IncomingMessage.emit (events.js:208:7) at endReadableNT (_stream_readable.js:1064:12) at _combinedTickCallback (internal/process/next_tick.js:138:11) at process._tickCallback (internal/process/next_tick.js:180:9) PS F:\chaitu\web tech practise\js>

1 Answer

Fabio Marcel Ramos da Costa
Fabio Marcel Ramos da Costa
8,241 Points
Fabio Marcel Ramos da Costa
Fabio Marcel Ramos da Costa
8,241 Points

There are some errors in your code:

  1. You must enclose the URL string in backticks (`) to use Template Literal:
    `https://teamtreehouse.com/${username}.json`
  1. You must assign an empty string to the variable body:
    var body = '';
  1. You must concatenate the variable body inside the data callback:
    body += d.toString();

4, As you parsed the variable body from JSON to JavaScript object, you must use the dir method of the console object:

    console.dir(parsing);

So your code should look like this:

var https = require("https"); 
var username = "aletichaitanya";

https.get(`https://teamtreehouse.com/${username}.json`, res => { 

    console.log(res.statusCode); 

    var body = ''; 

    res.on("data", d => { 

        body += d.toString(); 

    }); 

    res.on("end", () => { 

        var parsing = JSON.parse(body); 
        console.dir(parsing); 

    }); 
});