Google API Core Client - Class HeaderCredentialsInterface (1.42.4)

Reference documentation and code samples for the Google API Core Client class HeaderCredentialsInterface.

Classes which implement this interface in this package:

Namespace

Google \ ApiCore

Parameter

Name

Description

audience

string|null

optional audience for self-signed JWTs.

Returns

Type

Description

callable|null

Callable function that returns an authorization header.

Verify that the expected universe domain matches the universe domain from the credentials.

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Last updated 2026-05-12 UTC.

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