phonexia-grpc 2.1.0

Library for communication with microservices developed by phonexia using grpc application interface.

Phonexia microservice communication via grpc library

This library contains defined interfaces for all microservices developed by Phonexia.

To use this library you will first need a running instance of any Phonexia microservice. If you don't yet have any running instance, don't hesitate to contact our sales department.

On this page, you may find a gRPC API reference for all microservices.

Example

Examples require microservice running on local machine at port 8080.

Health check

You can invoke health check method of any microservice like this:

import grpc

from phonexia.grpc.common.health_check_pb2 import HealthCheckRequest
from phonexia.grpc.common.health_check_pb2_grpc import HealthStub


def health_check(stub: HealthStub):
    """Create request and call the service.
    Invoke Info method of the health stub.
    Args:
        stub (LicensingStub): Created stub for communication with service.
    """
    request = HealthCheckRequest()
    response = stub.Check(request)
    print(response)


def main():
    """Create a gRPC channel and connect to the service."""
    with grpc.insecure_channel(target="localhost:8080") as channel:
        """Create channel to the service.
        The target parameter is the service address and port.
        insecure channel is used for connection without TLS.
        To use SSl/TLS see the grpc_secure_channel function.
        """
        stub = HealthStub(channel)
        health_check(stub)


if __name__ == "__main__":
    main()

If the microservice is running, it should return: status: SERVING.

Check license

Each microservice has licensed model which is required to run the service. You can fetch information about licensed models like this:

import grpc

from phonexia.grpc.common.licensing_pb2 import LicensingInfoRequest
from phonexia.grpc.common.licensing_pb2_grpc import LicensingStub


def licensing_check(stub: LicensingStub):
    """Create request and call the service.
    Invoke Info method of the Licensing stub.
    Args:
        stub (LicensingStub): Created stub for communication with service.
    """
    request = LicensingInfoRequest()
    response = stub.Info(request)
    print(
        f"The license for technology '{response.technology_name}' with model"
        f" '{response.model_info.name}:{response.model_info.version}'"
        f" {'is' if response.is_valid else 'was'} valid until {response.valid_until}."
    )


def main():
    """Create a gRPC channel and connect to the service."""
    with grpc.insecure_channel(target="localhost:8080") as channel:
        """Create channel to the service.
        The target parameter is the service address and port.
        insecure channel is used for connection without TLS.
        To use SSl/TLS see the grpc_secure_channel function.
        """
        stub = LicensingStub(channel=channel)
        licensing_check(stub)


if __name__ == "__main__":
    main()

Returned message should contain information about technology name, model name with version and time validity of license.