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How does OAuth verify token?
The access token A resource server validates such a token by making a call to the authorisation server’s introspection endpoint. The token encodes the entire authorisation in itself and is cryptographically protected against tampering. JSON Web Token (JWT) has become the defacto standard for self-contained tokens.
What is token ID number?
An ID token is a signed assertion of a user’s identity that also contains a user’s basic profile information, possibly including an email address that has been verified by Google.
How do I get a Google authentication token?
Basic steps
- Obtain OAuth 2.0 credentials from the Google API Console.
- Obtain an access token from the Google Authorization Server.
- Examine scopes of access granted by the user.
- Send the access token to an API.
- Refresh the access token, if necessary.
How to verify the user info in OAuth 2.0?
Make a GET request to that endpoint and pass the access token in the HTTP Authorization header like you normally would when making an OAuth 2.0 API request. Authorization: Bearer ya29.Gl-oBRPLiI9IrSRA70… The response will be a JSON object with several properties about the user.
Where can I find the OAuth2 tokeninfo endpoint?
This is not recommended for production applications, as it requires an additional HTTP round trip, but can be useful for testing and troubleshooting. Google’s tokeninfo endpoint is at https://www.googleapis.com/oauth2/v3/tokeninfo, as found in their OpenID Connect discovery document at https://accounts.google.com/.well-known/openid-configuration.
How do I get an ID token for my App?
We build up a POST request to Google’s token endpoint containing our app’s client ID and secret, as well as the authorization code that Google sent back to us in the query string. Google will verify our request, and then respond with both an access token as well as an ID token.
Can a access token be used to retrieve user info?
Using the Access Token to Retrieve User Info. As mentioned before, many OAuth 2.0 services also provide an endpoint to retrieve the user info of the user who logged in. This is part of the OpenID Connect standard, and the endpoint will be part of the service’s OpenID Connect Discovery Document.