@property
@pulumi.getter(name='headerName')
def header_name(self) -> Optional[pulumi.Input[str]]:
    '\n        The name of the HTTP header to match. For matching against the HTTP request\'s authority, use a headerMatch with the header name ":authority". For matching a request\'s method, use the headerName ":method". When the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true, only non-binary user-specified custom metadata and the `content-type` header are supported. The following transport-level headers cannot be used in header matching rules: `:authority`, `:method`, `:path`, `:scheme`, `user-agent`, `accept-encoding`, `content-encoding`, `grpc-accept-encoding`, `grpc-encoding`, `grpc-previous-rpc-attempts`, `grpc-tags-bin`, `grpc-timeout` and `grpc-trace-bin`.\n        '
    return pulumi.get(self, 'header_name')
The name of the HTTP header to match. For matching against the HTTP request's authority, use a headerMatch with the header name ":authority". For matching a request's method, use the headerName ":method". When the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true, only non-binary user-specified custom metadata and the `content-type` header are supported. The following transport-level headers cannot be used in header matching rules: `:authority`, `:method`, `:path`, `:scheme`, `user-agent`, `accept-encoding`, `content-encoding`, `grpc-accept-encoding`, `grpc-encoding`, `grpc-previous-rpc-attempts`, `grpc-tags-bin`, `grpc-timeout` and `grpc-trace-bin`.
@property
@pulumi.getter(name='headerName')
def header_name(self) -> Optional[pulumi.Input[str]]:
    '\n        The name of the HTTP header to match. For matching against the HTTP request\'s authority, use a headerMatch with the header name ":authority". For matching a request\'s method, use the headerName ":method". When the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true, only non-binary user-specified custom metadata and the `content-type` header are supported. The following transport-level headers cannot be used in header matching rules: `:authority`, `:method`, `:path`, `:scheme`, `user-agent`, `accept-encoding`, `content-encoding`, `grpc-accept-encoding`, `grpc-encoding`, `grpc-previous-rpc-attempts`, `grpc-tags-bin`, `grpc-timeout` and `grpc-trace-bin`.\n        '
    return pulumi.get(self, 'header_name')