This is java implementation of the grpc client of a specific proto files
- clone the project and import as maven project in eclipse or intelij
mvn clean install - You have to add the proto file inside
src/main/resources/which should be same as in your server - Now you have to generate the stubds, Right click on
pom.xmland then run the default profile, that will generate the stubs if not already generated - In next section we will seee how to write a client using these stubs in Java
public static void main(String args[]) { ManagedChannel channel = ManagedChannelBuilder.forAddress("localhost", 9094).usePlaintext().build(); PatientServiceBlockingStub blockingStub = PatientServiceGrpc.newBlockingStub(channel); PatientResponse allPatients = blockingStub.getAllPatients(null); AddDeletePatientResponse.Builder response = AddDeletePatientResponse.newBuilder(); response.setStatusCode(1); response.setSuccessMessage("Hello"); response.setErrorMessage("world"); int size = response.build().getSerializedSize(); System.out.println("---------------------size of the message--------------"+size); System.out.println("==================response==============="+response); } syntax = "proto3"; option java_package = "patientProto"; service PatientService{ rpc getPatient(PatientRequest) returns (PatientResponse); rpc addPatient(Patient) returns (AddDeletePatientResponse); rpc deletePatient(Patient) returns (AddDeletePatientResponse); rpc getAllPatients(EmptyResponse) returns (PatientResponse); } message PatientRequest{ int32 identifier = 1; string name = 2; } message PatientResponse{ repeated Patient patient = 1; } enum Gender{ MALE = 0; FEMALE = 1; } enum MaritalStatus{ MARRIED = 0; UNMERRIED = 1; } message Patient{ int32 identifier = 1; string name = 2; Gender gender = 3; bool active = 4; string address = 5; MaritalStatus maritalStatus = 6; string link = 7; repeated string language = 8; repeated Provider careProvider = 9; string managingOrganization = 10; repeated Contact guardian = 11; } message Provider{ string name = 1; int32 identifier = 2; int32 tin = 3; } message Contact{ string name = 1; string relationWithPatient = 2; string cotactDetails = 3; } message AddDeletePatientResponse{ string successMessage = 1; string errorMessage = 2; int32 statusCode = 3; } message EmptyResponse{ } Now you can run your client to request the server.
Please raise an issue if you find anything which is not working or want unimplemented functionality.