A promise that resolves with the current GCP access token response. If the current credential is expired, a new one is retrieved.
The main authentication interface. It takes an optional url which when present is the endpoint being accessed, and returns a Promise which resolves with authorization header fields.
The result has the form:
{ Authorization: 'Bearer
The URI being authorized.
Subscribes a listener to the tokens event triggered when a token is generated.
Provides an alternative Gaxios request implementation with auth credentials
Sets the auth credentials.
The quota project ID. The quota project can be used by client libraries for the billing purpose. See Working with quotas