Aws cognito linkedin

It's explained as impossible without Auth0. Good question. LinkedIn's OpenID is just different than FB and Google's public login which Cognito accepts right now. I don't have code that authorizes a Cognito Pool with LinkedIn's OpenID. I believe I found the document that will explain what's missing in LinkedIn's OpenID in detail: How do I set up LinkedIn as a social identity provider in an Amazon Cognito user pool? I wouldn't throw away the Sign in with LinkedIn OpenID service in your app. It's just that Auth0 is absolutely necessary unless LinkedIn changes its OpenID.

Official answer from amazon support:

After investigating this further, and reaching out to the Cognito Team, I can confirm that the intended functionality is not currently possible with Cognito. The required State parameter is stripped from requests when added manually, preventing the flow from being bypassed like this. After researching this further it looks like there is already a feature request for providing a workaround and I have noted your desire for this functionality as well.

Unfortunately at this time I can't confirm any ETA regarding this request.