Move to the Google Credentials page https://console.developers.google.com/apis/credentials
Either sign in, or create a google account
You will be moved to the Google API Console
Click the Select a project dropdown, and then click NEW PROJECT
For project name enter StemmaIDF
Click Create
Click Credentials
Click CONFIGURE CONSENT SCREEN
because our application will be usable by any google user, we have to select external users
Check the box next to External and click CREATE
Next you need to give the application a name ... enter StemmaIDF in the App Name box.
enter your own email in user support email
enter your own email in Developer contact information
Click SAVE AND CONTINUE
Click SAVE AND CONTINUE
Click SAVE AND CONTINUE
Click BACK TO DASHBOARD
Click Credentials on the menu on the left
Click CREATE CREDENTIALS and then OAuth client ID
In the Application type download select Web Application
Under Name enter StemmaServerlessApp
We need to add the WebApp URL, this is the distribution domain name of the cloudfront distribution (making sure it has https:// before it)
Click ADD URI under Authorized JavaScript origins
Enter the endpoint URL, you need to enter the Distribution DNS Name of your CloudFront distribution (created by the 1-click deployment), you should add https:// at the start
Click CREATE
You will be presented with two pieces of information
Client IDClient Secret
Note down the Client ID you will need it later.
You wont need the Client Secret again.
Once noted down safely, click OK