types-grpcio-health-checking

import grpc from grpc_health.v1 import health_pb2 from grpc_health.v1.health import HealthServicer # This example demonstrates using type hints provided by types-grpcio-health-checking. # For this code to run, 'grpcio' and 'grpcio-health-checking' must also be installed. # The 'types-' package primarily assists static analysis tools like MyPy. class MyHealthServicer(HealthServicer): """ An example gRPC Health Servicer implementation. The type hints for `request` and the return value are validated by type checkers (like mypy) thanks to the 'types-grpcio-health-checking' package providing stubs for 'grpcio-health-checking'. """ def Check(self, request: health_pb2.HealthCheckRequest, context: grpc.ServicerContext) -> health_pb2.HealthCheckResponse: """ Implements the Check method of the gRPC Health Service. """ print(f"Received health check for service: {request.service}") # In a real application, you'd check actual service status here. if request.service == "myservice": return health_pb2.HealthCheckResponse(status=health_pb2.HealthCheckResponse.ServingStatus.SERVING) return health_pb2.HealthCheckResponse(status=health_pb2.HealthCheckResponse.ServingStatus.NOT_SERVING) def Watch(self, request: health_pb2.HealthCheckRequest, context: grpc.ServicerContext) -> health_pb2.HealthCheckResponse: """ Implements the Watch method (streaming). For simplicity, this example just yields a single response. """ yield health_pb2.HealthCheckResponse(status=health_pb2.HealthCheckResponse.ServingStatus.SERVING) # To verify type-checking with MyPy: # 1. Ensure you have 'grpcio', 'grpcio-health-checking', 'types-grpcio-health-checking', and 'mypy' installed. # 2. Save this code as 'health_types_example.py'. # 3. Run: mypy health_types_example.py # If 'types-grpcio-health-checking' were missing, mypy would report errors for `HealthServicer` and other type hints.