How to parse JSON assigned to a variable in POST request?

Asked Oct 07 '21 at 14:59

Active Oct 07 '21 at 14:59

Viewed 42 times

I am trying to set a webhook for a payment system. Although, they keep sending invalid JSON data with content-type "application/json" headers.

Since I have set express with app.use(express.json()), whenever they make a POST request I'm unable to parse the data and the server errors.

This is what they're trying to send:

data={
  "return": {
    "orders": [
      {
        "order": {}
      }
    ]
  }
}

As you can see: it's JSON content assigned to a variable.

How do I deal with that, in order to have access to the actual JS object?

asked Oct 07 '21 at 14:59

jurordrained

Is the variable always `data=`? You can read the body as text, remove that prefix, then call `JSON.parse()`. – Barmar Oct 07 '21 at 15:25
@Barmar yes, it's always data. Can you answer this question with this solution? – jurordrained Oct 07 '21 at 15:26
`body = body.replace(/^data=/, ''); data = JSON.parse(body);` – Barmar Oct 07 '21 at 15:28
Have you tried contacting their tech support to find out how other customers process this webhook? It seems very unlikely that they don't provide a way to send normal JSON. – Barmar Oct 07 '21 at 15:29
@Barmar they can send JSON, JSON (urlenconded) and XML – jurordrained Oct 07 '21 at 15:30
@Barmar this solution combined with yours has worked: https://stackoverflow.com/a/30099608/14172634 – jurordrained Oct 07 '21 at 15:37
@Barmar you're amazing – jurordrained Oct 07 '21 at 15:38

0 Answers0