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I am building an app which uses Drupal (9.4.8) as the API. I am using the Simple OAuth module to authorise the client. I have got almost everything working fine, I am receiving the Access Token and the Refresh Token as expected. But, after a lot of searching, I still can't find out which path I need to refresh the tokens.

According to this video tokens can be refreshed on the path "/simple-oauth/refresh". But that path doesn't exist and I guess the video refers to an old version of the module...

Can anyone shed any light on this?

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    What is the precise version of the module you are using and can you confirm the module is this one? drupal.org/project/simple_oauth
    – mona lisa
    Oct 20, 2022 at 15:53
  • Yes, that's the module, version 5.2.0
    – dfd
    Oct 21, 2022 at 16:46
  • Ok, I have made some progress. Got it to working on Talend API Tester. By following these instructions here: link. The refresh url should be /oauth/token (same as login). You also need to send the grant_type and client_id.
    – dfd
    Oct 21, 2022 at 17:16

1 Answer 1

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I have got it working with the following steps:

In the Auth strategy in nuxt.config.js

  • Set the refresh path to /oauth/token (I also added a query string, ?refresh to distinguish out from the login path)
  • Add this to the header 'Content-Type': 'application/x-www-form-urlencoded'

Here's the code:

    refresh: {
     url: '/oauth/token?refresh',
     method: 'post',
     headers: { 'Accept': '*/*','Content-Type': 'application/x-www-form-urlencoded' },
    },

I still had problems sending the body in the x-www-form-urlencoded format, so I then created an Axios interceptor plugin to alter the request. This plugin (~/plugins/axios.js) intercepts request made to /oauth/token?refresh and puts the grant type, the refresh token and the client id in the correct format.

Here's the plugin:

var qs = require('qs');

export default function ({ $axios, redirect }) {
  $axios.onRequest(config => {
    if (config.url == '/oauth/token?refresh') {
      const params = new URLSearchParams(config.data);
      const refreshToken params.get('refresh_token');
      config.data = qs.stringify({'grant_type': 'refresh_token', 'refresh_token': refreshToken,'client_id':'xxxxx-your-client-id-XXXX'})
    }
  })
}

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