To create an employee

grpcurl -plaintext -d '{"name": "John Doe", "position": "Developer"}' localhost:9090 com.example.grpc.EmployeeService/CreateEmployee

To get an employee by id

grpcurl -plaintext -d '{"id": 1}' localhost:9090 com.example.grpc.EmployeeService/GetEmployee

To get all employees

grpcurl -plaintext localhost:9090 com.example.grpc.EmployeeService/GetAllEmployees