CODEWITHSUNDEEP
javascriptjsonnode.js
trnelson
trnelson

Reputation: 2763

Node.js Request - Can't get properties of REST Response (JSON)

I have some JSON returned from an HTTP endpoint in the Node.js Request package. The body of the response is a JSON object with the following (Content-Type of application/json) :

{
    exchange_rate: 1.0,
    format: {
        symbol: '$',
        precision: 2,
        thousands_separator: ',',
        decimal_separator: '.'
    }
}

When I use console.log(body); I get the following (it's verbatim to the above):

{
    exchange_rate: 1.0,
    format: {
        symbol: '$',
        precision: 2,
        thousands_separator: ',',
        decimal_separator: '.'
    }
}

However, when I try to access the exchange_rate value, it returns undefined:

console.log(body.exchange_rate);

I tried to use JSON.parse(body); however it fails because it's already JSON:

SyntaxError: Unexpected token e
    at Object.parse (native)
    ...

Any idea how I can access the individual properties of this JSON?

Upvotes: 2

Views: 281

Answers (1)

Quentin
Quentin

Reputation: 943108

Your problem is that what you have is not JSON.

Property names in JSON must be represented by strings, not identifiers. Strings must be quoted using " characters and not '.

You are getting the Unexpected token e error because you have an e where you should have a ".

If you had had a JavaScript object (i.e. had successfully parsed the "JSON") you would get Unexpected token o (o not e) because it would have stringified to [object Object].

Upvotes: 4

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