GoogleRidesharingDriver Framework Reference

GMTDAuthorization

@protocol GMTDAuthorization <NSObject>

Protocol used to provide authorization tokens for gRPC calls. These tokens give access to the Fleet Engine service accounts.

The implementation should ensure that a valid authorization token is always available. The authorization token should have a minimum lifetime of 5 minutes to allow for requests to complete. Therefore, the authorization token must automatically renew expiring tokens and minimize the number of token refreshes by re-using a token until its lifetime nears its end.

Implementations of this protocol must be thread-safe.


                    
                    
                    -fetchTokenWithContext:completion:

Called by the SDK to fetch a JWT. The implementation must assume that this method may be invoked from arbitrary queues.

Declaration

Swift

func fetchToken(with authorizationContext: GMTDAuthorizationContext?) async throws -> String

Objective-C

- (void)fetchTokenWithContext:
            (nullable GMTDAuthorizationContext *)authorizationContext
                   completion:
                       (nonnull GMTDAuthTokenFetchCompletionHandler)completion;

Parameters

`authorizationContext`	The context of the target authorization token.
`completion`	Must be called asynchronously, but can be called from any queue.