Spotify Api - Retrieving Valid Access Token In Google Apps Scripts

Here is the documentation for the Spotify API (I'm using the Implicit Grant Flow): https://beta.developer.spotify.com/documentation/general/guides/authorization-guide/#implicit-gra

Solution 1:

I modified your script for retrieving access token by following curl -X "POST" -H "Authorization: Basic ZjM4ZjAw...WY0MzE=" -d grant_type=client_credentials https://accounts.spotify.com/api/token of the document. Can you please try this modified script?

var authorization = "Basic "+ Utilities.base64Encode('<client_id>:<client_secret>');
var fetchParams = {
  method: 'post', // Modified
  payload: {'grant_type': 'client_credentials'}, // Modified
  headers: {'Authorization': authorization},
  muteHttpExceptions: true
}
var replaceResponse = UrlFetchApp.fetch("https://accounts.spotify.com/api/token", fetchParams); // Modified
Logger.log(replaceResponse.getContentText())

Reference :

• Client Credentials Flow

If the response message was changed, please tell me.