Number value changes on JSON.parse( )

Question

I'm using Node/Express to make API requests to the unofficial Vine API.

The data that the GET https://api.vineapp.com/users/search/ route returns changes on parsing.

My code is the following:

request({ url: 'https://api.vineapp.com/users/search/' + username }, function (error, response, body) {
  if (error) throw new Error(error);

  console.log(typeof body,'UNPARSED BODY:', body);

  body = JSON.parse(body);

  console.log(typeof body,'PARSED BODY:', JSON.stringify(body, null, 2));

  cb(null, body)
});

This is what is returns: The data.records.userId changes on parsing.

Why does this happen? Am I missing something here? Why would they do that?

What is the userId before you parse the response? Also are you using any custom validations or custom types (like mongodb's ObjectId field type) ? — Vasil Dininski, Jun 28 '16 at 08:51

score 6 · Accepted Answer · edited May 23 '17 at 11:58

6

The number is too high for the JSON parser

Info about the highest possible value in javascript:
What is JavaScript's highest integer value that a Number can go to without losing precision?

There is a solution provided here:
node.js is there any proper way to parse JSON with large numbers? (long, bigint, int64)

edited May 23 '17 at 11:58

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answered Jun 28 '16 at 08:55

Simon Hänisch

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Number value changes on JSON.parse( )

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