Using Google Apps Script to configure OAuth - google-apps-script

Question

I'm having some trouble configuring my Google Apps Script to properly handle the token that comes from the API I'm reaching out to. Everything from what I can tell is compatible.
I am using the Apps Script oAuth2 here.
When I run the below scripts I am able to get to the oAuth screen where i validate on the app, and when it passes the credentials back to google scripts on usercallback i get the below error.
Error: Error retrieving token: {"id":"401","name":"unauthorized","detail":"Unauthorized"} (line 541, file "Service")
My oAuth Script is below:
var CLIENT_ID = '...1';
var CLIENT_SECRET = '...2';
// configure the service
function getYNABService() {
return OAuth2.createService('YNAB')
.setAuthorizationBaseUrl('https://app.youneedabudget.com/oauth/authorize')
.setTokenUrl('https://api.youneedabudget.com/v1/budgets?access_token')
.setClientId(CLIENT_ID)
.setClientSecret(CLIENT_SECRET)
.setCallbackFunction('authCallback')
.setPropertyStore(PropertiesService.getUserProperties())
.setScope('read-only')
.setGrantType('authorization_code');
}
// Logs the redict URI to register
// can also get this from File > Project Properties
function logRedirectUri() {
var service = getService();
Logger.log(service.getRedirectUri());
}
// handle the callback
function authCallback (request) {
var YNABService = getYNABService();
var isAuthorized = YNABService.handleCallback(request);
if (isAuthorized) {
return HtmlService.createHtmlOutput('Success! You can close this tab.');
} else {
return HtmlService.createHtmlOutput('Denied. You can close this tab');
}
}
My Google Sheets script is below
// add custom menu
function onOpen() {
var ui = SpreadsheetApp.getUi();
ui.createMenu('YNAB for Sheets')
.addItem('Authorize','showSidebar')
.addItem('Fetch Budget','FetchBudgets')
.addItem('Reset','reset')
.addToUi();
}
/***************************************/
// Show sidebar for Authorization
function showSidebar() {
var YNABService = getYNABService();
if (!YNABService.hasAccess()) {
var authorizationUrl = YNABService.getAuthorizationUrl();
var template = HtmlService.createTemplate(
'Authorize. ' +
'Reopen the sidebar when the authorization is complete.');
template.authorizationUrl = authorizationUrl;
var page = template.evaluate();
SpreadsheetApp.getUi().showSidebar(page);
} else {
// ...
}
}
function reset() {
getYNABService().reset();
}
function FetchBudgets() {
var YNABService = getYNABService();
var response = UrlFetchApp.fetch('https://api.youneedabudget.com/v1/budgets/default/accounts', {
headers: {
Authorization: 'Bearer ' + YNABService.getAccessToken()
}
});
// ...
}

Answer 1

Upon deeper investigation on this, it seems that the problem is on my fault. I mixed the URLs for client/server side auth.
https://app.youneedabudget.com/oauth/token? - this is the correct token URL.