CODEWITHSUNDEEP
javascriptnode.jsjsonresponsestringify
devdude19289
devdude19289

Reputation: 153

access object paratamters node.js

I am logging a response that I get from the server after sending a post request, and it looks like this:

{"output":"basic question #1. how do I calculate the area of a rectangle based on users input in python?"}

now i want to access output as type plain text (string). I tried this:

 console.log(body)
     //this returns  {"output":"basic question #1. how do I calculate the area of a rectangle based on users input in python?"}
 console.log(JSON.stringify(body))
    //this returns "{\"output\":\"calculate the area of a rectangle based on users input in python\"}"

how would I access output within the body response?

Upvotes: 0

Views: 31

Answers (1)

Viradex
Viradex

Reputation: 3748

There is a built-in method called JSON.parse() in JavaScript that will convert JSON to a JavaScript object.

Follow these steps to get the result you want!

  1. Skip if already parsed! First, you need to use JSON.parse() to parse the string JSON into a valid JavaScript object. As a parameter, you pass in the string that you want to parse.

    JSON.parse(body);

  2. To access the body, you can either use dot notation or bracket notation. Either one will work; you use them like below.

    // Dot notation
body.output;

// Bracket notation
body["output"];

The final code should look like this.

const body = `{"output": "Calculate the area of a rectangle based on users input in Python."}`;

const parsed = JSON.parse(body);

// Dot notation
console.log(parsed.output);

// Bracket notation
console.log(parsed["output"]);

In conclusion, the JSON.parse() method built-into JavaScript should help solve the issue.

Upvotes: 1

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