Add emailservice

Signed-off-by: Ahmet Alp Balkan <ahmetb@google.com>

src/emailservice/email_client.py

@@ -0,0 +1,32 @@
+import grpc
+
+import demo_pb2
+import demo_pb2_grpc
+
+# from opencensus.trace.tracer import Tracer
+# from opencensus.trace.exporters import stackdriver_exporter
+# from opencensus.trace.ext.grpc import client_interceptor
+
+# try:
+#     exporter = stackdriver_exporter.StackdriverExporter()
+#     tracer = Tracer(exporter=exporter)
+#     tracer_interceptor = client_interceptor.OpenCensusClientInterceptor(tracer, host_port='0.0.0.0:8080')
+# except:
+#     tracer_interceptor = client_interceptor.OpenCensusClientInterceptor()
+
+def send_confirmation_email(email, order):
+  channel = grpc.insecure_channel('0.0.0.0:8080')
+  # channel = grpc.intercept_channel(channel, tracer_interceptor)
+  stub = demo_pb2_grpc.EmailServiceStub(channel)
+  try:
+    response = stub.SendOrderConfirmation(demo_pb2.SendOrderConfirmationRequest(
+      email = email,
+      order = order
+    ))
+    print('Request sent.')
+  except grpc.RpcError as err:
+    print(err.details())
+    print('{}, {}'.format(err.code().name, err.code().value))
+
+if __name__ == '__main__':
+  print('Client for email service.')