What is access token audience?
The audience of a token is the intended recipient of the token. The audience value is a string — typically, the base address of the resource being accessed, such as https://contoso.com . The client_id in OAuth refers to the client application that will be requesting resources from the Resource Server.
Should you store OAuth tokens?
There is no need to store it. You can validate it and get the data from it that you required. If your app needs to call APIs on behalf of the user, access tokens and (optionally) refresh tokens are needed. These can be stored server-side or in a session cookie.
Can a single OAuth 2 token be used for multiple audiences?
The second option-single access token, with multiple audiences covering all desired APIs-is allowed by the spec, but multi-audience JWTs acting as OAuth 2 access tokens isn’t universally supported by IdP vendors, API gateway vendors or other libraries.
Can a client determine what client an OAuth Token was issued to?
For OAuth 2.0 Access tokens, existing answers pretty well cover it. Additionally here is one relevant section from OAuth 2.0 Framework (RFC 6749) For public clients using implicit flows, this specification does not provide any method for the client to determine what client an access token was issued to.
What’s the difference between OAuth client ID and JWT AUD?
OAuth Client ID vs. JWT aud Claim The OAuth Client ID is completely unrelated, and has no direct correlation to JWT aud claims. From the perspective of OAuth, the tokens are opaque objects. The application which accepts these tokens is responsible for parsing and validating the meaning of these tokens.
Which is client side authentication library does OAuth2 use?
Ideally, an (OAuth2) client-side authentication library would be used that implements this token caching rather than the developer implementing their own caching layer. Depending on the token usage strategy, the requirements for token caching will vary.