GrpcTransport

Associative array

List of keys to check for in $arr

Returns $arr for fluent use

Associative array

List of keys to check for in $arr

Returns $arr for fluent use

• 'update_metadata': (optional) a callback function which takes in a metadata array, and returns an updated metadata array
  • 'grpc.primary_user_agent': (optional) a user-agent string

An already created Channel object (optional)

EXPERIMENTAL Interceptors used to intercept RPC invocations before a call starts. Please note that implementations of {\Google\ApiCore\Transport\Grpc\UnaryInterceptorInterface} are considered deprecated and support will be removed in a future release. To prepare for this, please take the time to convert UnaryInterceptorInterface implementations over to a class which extends {\Google\ApiCore\Transport\Grpc\Interceptor}.

The address of the API remote host, for example "example.googleapis.com. May also include the port, for example "example.googleapis.com:443"

{ Config options used to construct the gRPC transport.

@type array $stubOpts Options used to construct the gRPC stub (see https://grpc.github.io/grpc/core/group__grpc__arg__keys.html). @type Channel $channel Grpc channel to be used. @type Interceptor[]|UnaryInterceptorInterface[] $interceptors EXPERIMENTAL Interceptors used to intercept RPC invocations before a call starts. Please note that implementations of {\Google\ApiCore\Transport\Grpc\UnaryInterceptorInterface} are considered deprecated and support will be removed in a future release. To prepare for this, please take the time to convert UnaryInterceptorInterface implementations over to a class which extends {\Google\ApiCore\Transport\Grpc\Interceptor}. @type callable $clientCertSource A callable which returns the client cert as a string. }