Google Auth Library Client - Class ProjectIdProviderInterface (1.52.0)

Reference documentation and code samples for the Google Auth Library Client class ProjectIdProviderInterface.

Describes a Credentials object which supports fetching the project ID.

Classes which implement this interface in this package:

Namespace

Google \ Auth

Get the project ID.

Parameter
Name	Description
`httpHandler`	`callable\|null` Callback which delivers psr7 request

Returns
Type	Description
`string\|null`

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Last updated 2026-08-01 UTC.