always getting Invalid grant_type parameter or parameter missing but works on postman

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Socha17

2017年07月31日 00:42

I am trying to get my access token with a post request.

I have tried the request on postman and it works perfectly.

but when trying from my app I get the error

{error: "invalid_request", error_description: "Invalid grant_type parameter or parameter missing"}

I have copied the code from from postman and tried it in my JS but I still get the error

This is my fetch call

    fetch('https://api.box.com/oauth2/token', {
        method: 'post',
        headers: {
          "Content-type": "application/x-www-form-urlencoded; charset=UTF-8"
        },
        body: JSON.stringify({
          grant_type: 'authorization_code',
          code: code,
          client_id: "CLIENT_ID",
          client_secret: "CLIENT_SECRET"
        })
      })

Any help would be greatly appreciated.

Thank you

2件のコメント

BobFlynn-IU

2017年07月31日 03:44
,

You'll have better luck getting a response posting this to the Box Developer Forum.

Bob
0

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thecory

2017年12月28日 09:40
You're setting the wrong content-type. You set it to
```
"Content-type": "application/x-www-form-urlencoded; charset=UTF-8"
```
but you're sending json so it should be
```
"Content-type": "application/json"
```
If you want to send urlencoded data instead of json then the data should look like:
```
grant_type=authorization_code&code=code&client_id=CLIENT_ID&client_secret=CLIENT_SECRET
```
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