# Keep getting unsupported\_grant\_type
**URL:** https://www.patreondevelopers.com/t/keep-getting-unsupported-grant-type/4379
**Category:** Docs Feedback
**Created:** [April 7, 2021, 8:44pm UTC](https://www.patreondevelopers.com/t/keep-getting-unsupported-grant-type/4379 "2021-04-07T20:44:22Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@DS-Studio](https://www.patreondevelopers.com/u/DS-Studio)
#### Post date: [April 7, 2021, 8:44pm UTC](https://www.patreondevelopers.com/t/keep-getting-unsupported-grant-type/4379/1 "2021-04-07T20:44:22Z")
I am trying to get user access token, i did created my own html page on the redirect url.
When i get the code i pass it to cloud code (Sashido/Parse) and i will call post from there, but i keep getting unsupported\_grant\_type.
I tested it on PostMan and everythings works perfectly, so i guess it’s something related to cloud and/or Sashido server.
I did a lot of try, the code i am going to show is not my first attempt.
Just a small note, i am a c++ programmer not really used to program in nodejs, so be friendly with me 🙂
> ```
> let patreonCheck = {
> code: patreonCode,
> grant_type: 'authorization_code',
> client_id: 'MY_CLIENT',
> client_secret: 'MY_SECRET',
> redirect_uri: 'https://www.ds-studio-dev.com/checkUser.html'
> };
>
> const patreonRequest = await fetch('https://www.patreon.com/api/oauth2/token', {
> method: 'POST',
> body: JSON.stringify(patreonCheck),
> headers: {
> 'Accept': '*/*',
> 'Content-Type': 'application/json',
> 'Connection': 'keep-alive',
> 'User-Agent': ua
> }
> });
>
> ```
Can you help me to understand what can i do to fix this issue?
---
### Author:  [@codebard](https://www.patreondevelopers.com/u/codebard)
#### Post date: [April 12, 2021, 3:24pm UTC](https://www.patreondevelopers.com/t/keep-getting-unsupported-grant-type/4379/2 "2021-04-12T15:24:57Z")
You will need to debug your call step by step it seems. You can use WP plugin’s calls and match them with yours to see where it is going wrong:
>