Still missing:
- Caching of the already checked JWTs (although it could be done at an
upper layer).
- Caching of the jwks_uri to avoid 2 roundtrips for each verification.
- Renaming default credentials -> google default credentials.
- Various other things in cpp:
- Adding Cpp wrapping for JWT Tokens.
- Renaming ComposeCredentials -> CompositeCredentials.
- Tested with new tool (print_default_creds_token) on:
- workstation for env var and well known place.
- GCE for compute engine default creds.
- I'd prefer the grpc_default_credentials_create() API to remain
synchronous even though there may be an async call for gce detection
on which we block.