Change OAuth2 token URL

Use a custom decorator to change the OAuth credentials flow token URL.

Estimated time: 20 minutes

Step-by-step instructions

1. Add environment variables to the API version's settings.
2. Add this code to your repo with the API (the Redocly configuration file is an example).
   redocly.yamlacme-plugin.jsdecorators/change-token-url.js

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   plugins:
     lint:
   extends:
     - recommended
   plugins:
     - './plugins/acme-plugin.js'
   decorators:
     acme/change-token-urls: error

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   const ChangeTokenUrl = require('./decorators/change-token-url');
   const id = 'acme';
   
   /** @type {import('@redocly/cli').CustomRulesConfig} */
   const decorators = {
     oas3: {
       'change-token-url': ChangeTokenUrl,
     },
   };
   
   module.exports = {
     id,
     decorators,
   };

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   module.exports = ChangeTokenUrl;
   
   /** @type {import('@redocly/cli').OasDecorator} */
   function ChangeTokenUrl() {
     return {
       SecuritySchemeFlows: {
         leave(flows, ctx) {
           if ('TOKEN_URL' in process.env && flows?.clientCredentials) {
             flows.clientCredentials.tokenUrl = process.env.TOKEN_URL;
           }
         }
       }
     }
   };