How do I configure Identity Platform as an IdP for AWS Cognito?

[nkohei]

I want to use Identity Platform as an IdP for AWS Cognito. However, I do not know the setting value (Identity Platform) of Relying Party (Cognito).

AWS Cognito user-pool OIDC

 https://cloud.google.com/identity-platform/docs/concepts-admin-auth-api#id_token_verification 

[Andre_Fiesco]

In order to secure an app using Identity-Aware Proxy (IAP) and external identities, and by combining IAP and Identity Platform, you can authenticate users with a wide range of identity providers, such as OAuth, SAML, and OIDC, in addition to Google Accounts.

1. In the Google Cloud console, on the project selector page, select or create a Google Cloud project.
2. Make sure that billing is enabled for your Cloud project. Learn how to check if billing is enabled on a project.
3. Install and initialize the Google Cloud CLI.
4. Initialize App Engine for your project:
5. Install Git.
6. Install Node.js.
7. Install the Firebase command-line tool

A more detailed guide can be found here. 

To configure an external OIDC provider to Cloud Identity Platform, you need to follow this documentation. 

Note: If your OIDC provider doesn't comply with the OIDC specification for discovery, it won't work with Identity Platform.