Node example

src/funnel/Makefile

@@ -1,6 +1,5 @@
 PROTO_DIR=../protos
 STUBS_DIR=./stubs
-PROTO_FILENAME=serve_hours.proto
 
 run:
 	@source env/bin/activate && \
@@ -14,5 +13,9 @@ proto:
 			--python_out=$(STUBS_DIR) \
 			--pyi_out=$(STUBS_DIR) \
 			--grpc_python_out=$(STUBS_DIR) \
-			$(PROTO_DIR)/$(PROTO_FILENAME)
+			$(PROTO_DIR)/serve_hours.proto \
+			$(PROTO_DIR)/serve_minutes.proto \
+			$(PROTO_DIR)/serve_seconds.proto \
+			$(PROTO_DIR)/serve_milliseconds.proto \
+			$(PROTO_DIR)/serve_currenttime.proto
 	@sed -i -E 's/^(import\s[a-zA-Z0-9_]+_pb2)/from . \1/g' $(STUBS_DIR)/*_grpc.py

src/funnel/main.py

@@ -1,8 +1,13 @@
 import logging
 import grpc
+from models import GetCurrentTimeResponse
 from stubs import serve_hours_pb2
 from stubs import serve_hours_pb2_grpc
+from stubs import serve_currenttime_pb2
+from stubs import serve_currenttime_pb2_grpc
 
+SERVE_CURRENTTIME_HOST = "localhost"
+SERVE_CURRENTTIME_PORT = 50000
 SERVE_HOURS_HOST = "localhost"
 SERVE_HOURS_PORT = 50001
 SERVE_MINUTES_HOST = "localhost"
@@ -23,10 +28,24 @@ def get_hours() -> int:
         return response.hours
 
 
+def get_currenttime() -> GetCurrentTimeResponse:
+    with grpc.insecure_channel(
+        f"{SERVE_CURRENTTIME_HOST}:{SERVE_CURRENTTIME_PORT}"
+    ) as channel:
+        stub = serve_currenttime_pb2_grpc.ServeCurrentTimeServiceStub(channel)
+        raw_response = stub.GetCurrentTime(
+            serve_currenttime_pb2.GetCurrentTimeRequest(timezone=TIMEZONE)
+        )
+        return GetCurrentTimeResponse.from_orm(raw_response)
+
+
 def run():
     hours = get_hours()
     print(">>>>>>>>>>>>> Hours:", hours)
 
+    currenttime = get_currenttime()
+    print(">>>>>>>>>>>>> CurrentTime:", currenttime)
+
 
 if __name__ == "__main__":
     logging.basicConfig()

src/funnel/models.py

@@ -0,0 +1,12 @@
+from pydantic import BaseModel
+
+
+class GetCurrentTimeResponse(BaseModel):
+    hours: int
+    minutes: int
+    seconds: int
+    milliseconds: int
+    formatted_time: str
+
+    class Config:
+        orm_mode = True

src/funnel/requirements.txt

@@ -1,2 +1,3 @@
+pydantic
 grpcio
 grpcio-tools

src/funnel/stubs/serve_currenttime_pb2.py

@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: serve_currenttime.proto
+"""Generated protocol buffer code."""
+from google.protobuf.internal import builder as _builder
+from google.protobuf import descriptor as _descriptor
+from google.protobuf import descriptor_pool as _descriptor_pool
+from google.protobuf import symbol_database as _symbol_database
+# @@protoc_insertion_point(imports)
+
+_sym_db = _symbol_database.Default()
+
+
+
+
+DESCRIPTOR = _descriptor_pool.Default().AddSerializedFile(b'\n\x17serve_currenttime.proto\x12\x11serve_currenttime\")\n\x15GetCurrentTimeRequest\x12\x10\n\x08timezone\x18\x01 \x01(\t\"w\n\x16GetCurrentTimeResponse\x12\r\n\x05hours\x18\x01 \x01(\r\x12\x0f\n\x07minutes\x18\x02 \x01(\r\x12\x0f\n\x07seconds\x18\x03 \x01(\r\x12\x14\n\x0cmilliseconds\x18\x04 \x01(\r\x12\x16\n\x0e\x66ormatted_time\x18\x05 \x01(\t2\x80\x01\n\x17ServeCurrentTimeService\x12\x65\n\x0eGetCurrentTime\x12(.serve_currenttime.GetCurrentTimeRequest\x1a).serve_currenttime.GetCurrentTimeResponseb\x06proto3')
+
+_builder.BuildMessageAndEnumDescriptors(DESCRIPTOR, globals())
+_builder.BuildTopDescriptorsAndMessages(DESCRIPTOR, 'serve_currenttime_pb2', globals())
+if _descriptor._USE_C_DESCRIPTORS == False:
+
+  DESCRIPTOR._options = None
+  _GETCURRENTTIMEREQUEST._serialized_start=46
+  _GETCURRENTTIMEREQUEST._serialized_end=87
+  _GETCURRENTTIMERESPONSE._serialized_start=89
+  _GETCURRENTTIMERESPONSE._serialized_end=208
+  _SERVECURRENTTIMESERVICE._serialized_start=211
+  _SERVECURRENTTIMESERVICE._serialized_end=339
+# @@protoc_insertion_point(module_scope)

src/funnel/stubs/serve_currenttime_pb2.pyi

@@ -0,0 +1,25 @@
+from google.protobuf import descriptor as _descriptor
+from google.protobuf import message as _message
+from typing import ClassVar as _ClassVar, Optional as _Optional
+
+DESCRIPTOR: _descriptor.FileDescriptor
+
+class GetCurrentTimeRequest(_message.Message):
+    __slots__ = ["timezone"]
+    TIMEZONE_FIELD_NUMBER: _ClassVar[int]
+    timezone: str
+    def __init__(self, timezone: _Optional[str] = ...) -> None: ...
+
+class GetCurrentTimeResponse(_message.Message):
+    __slots__ = ["formatted_time", "hours", "milliseconds", "minutes", "seconds"]
+    FORMATTED_TIME_FIELD_NUMBER: _ClassVar[int]
+    HOURS_FIELD_NUMBER: _ClassVar[int]
+    MILLISECONDS_FIELD_NUMBER: _ClassVar[int]
+    MINUTES_FIELD_NUMBER: _ClassVar[int]
+    SECONDS_FIELD_NUMBER: _ClassVar[int]
+    formatted_time: str
+    hours: int
+    milliseconds: int
+    minutes: int
+    seconds: int
+    def __init__(self, hours: _Optional[int] = ..., minutes: _Optional[int] = ..., seconds: _Optional[int] = ..., milliseconds: _Optional[int] = ..., formatted_time: _Optional[str] = ...) -> None: ...

src/funnel/stubs/serve_currenttime_pb2_grpc.py

@@ -0,0 +1,66 @@
+# Generated by the gRPC Python protocol compiler plugin. DO NOT EDIT!
+"""Client and server classes corresponding to protobuf-defined services."""
+import grpc
+
+from . import serve_currenttime_pb2 as serve__currenttime__pb2
+
+
+class ServeCurrentTimeServiceStub(object):
+    """Missing associated documentation comment in .proto file."""
+
+    def __init__(self, channel):
+        """Constructor.
+
+        Args:
+            channel: A grpc.Channel.
+        """
+        self.GetCurrentTime = channel.unary_unary(
+                '/serve_currenttime.ServeCurrentTimeService/GetCurrentTime',
+                request_serializer=serve__currenttime__pb2.GetCurrentTimeRequest.SerializeToString,
+                response_deserializer=serve__currenttime__pb2.GetCurrentTimeResponse.FromString,
+                )
+
+
+class ServeCurrentTimeServiceServicer(object):
+    """Missing associated documentation comment in .proto file."""
+
+    def GetCurrentTime(self, request, context):
+        """Missing associated documentation comment in .proto file."""
+        context.set_code(grpc.StatusCode.UNIMPLEMENTED)
+        context.set_details('Method not implemented!')
+        raise NotImplementedError('Method not implemented!')
+
+
+def add_ServeCurrentTimeServiceServicer_to_server(servicer, server):
+    rpc_method_handlers = {
+            'GetCurrentTime': grpc.unary_unary_rpc_method_handler(
+                    servicer.GetCurrentTime,
+                    request_deserializer=serve__currenttime__pb2.GetCurrentTimeRequest.FromString,
+                    response_serializer=serve__currenttime__pb2.GetCurrentTimeResponse.SerializeToString,
+            ),
+    }
+    generic_handler = grpc.method_handlers_generic_handler(
+            'serve_currenttime.ServeCurrentTimeService', rpc_method_handlers)
+    server.add_generic_rpc_handlers((generic_handler,))
+
+
+ # This class is part of an EXPERIMENTAL API.
+class ServeCurrentTimeService(object):
+    """Missing associated documentation comment in .proto file."""
+
+    @staticmethod
+    def GetCurrentTime(request,
+            target,
+            options=(),
+            channel_credentials=None,
+            call_credentials=None,
+            insecure=False,
+            compression=None,
+            wait_for_ready=None,
+            timeout=None,
+            metadata=None):
+        return grpc.experimental.unary_unary(request, target, '/serve_currenttime.ServeCurrentTimeService/GetCurrentTime',
+            serve__currenttime__pb2.GetCurrentTimeRequest.SerializeToString,
+            serve__currenttime__pb2.GetCurrentTimeResponse.FromString,
+            options, channel_credentials,
+            insecure, call_credentials, compression, wait_for_ready, timeout, metadata)

src/funnel/stubs/serve_hours_pb2.py

@@ -13,13 +13,14 @@ _sym_db = _symbol_database.Default()
 
 
 
-DESCRIPTOR = _descriptor_pool.Default().AddSerializedFile(b'\n\x11serve_hours.proto\"#\n\x0fGetHoursRequest\x12\x10\n\x08timezone\x18\x01 \x01(\t\"!\n\x10GetHoursResponse\x12\r\n\x05hours\x18\x01 \x01(\r2=\n\nServeHours\x12/\n\x08GetHours\x12\x10.GetHoursRequest\x1a\x11.GetHoursResponseb\x06proto3')
+DESCRIPTOR = _descriptor_pool.Default().AddSerializedFile(b'\n\x11serve_hours.proto\"#\n\x0fGetHoursRequest\x12\x10\n\x08timezone\x18\x01 \x01(\t\"!\n\x10GetHoursResponse\x12\r\n\x05hours\x18\x01 \x01(\r2=\n\nServeHours\x12/\n\x08GetHours\x12\x10.GetHoursRequest\x1a\x11.GetHoursResponseB(Z&example.com/project/protos/serve_hoursb\x06proto3')
 
 _builder.BuildMessageAndEnumDescriptors(DESCRIPTOR, globals())
 _builder.BuildTopDescriptorsAndMessages(DESCRIPTOR, 'serve_hours_pb2', globals())
 if _descriptor._USE_C_DESCRIPTORS == False:
 
   DESCRIPTOR._options = None
+  DESCRIPTOR._serialized_options = b'Z&example.com/project/protos/serve_hours'
   _GETHOURSREQUEST._serialized_start=21
   _GETHOURSREQUEST._serialized_end=56
   _GETHOURSRESPONSE._serialized_start=58

src/funnel/stubs/serve_milliseconds_pb2.py

@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: serve_milliseconds.proto
+"""Generated protocol buffer code."""
+from google.protobuf.internal import builder as _builder
+from google.protobuf import descriptor as _descriptor
+from google.protobuf import descriptor_pool as _descriptor_pool
+from google.protobuf import symbol_database as _symbol_database
+# @@protoc_insertion_point(imports)
+
+_sym_db = _symbol_database.Default()
+
+
+
+
+DESCRIPTOR = _descriptor_pool.Default().AddSerializedFile(b'\n\x18serve_milliseconds.proto\"*\n\x16GetMillisecondsRequest\x12\x10\n\x08timezone\x18\x01 \x01(\t\"/\n\x17GetMillisecondsResponse\x12\x14\n\x0cmilliseconds\x18\x01 \x01(\r2Y\n\x11ServeMilliseconds\x12\x44\n\x0fGetMilliseconds\x12\x17.GetMillisecondsRequest\x1a\x18.GetMillisecondsResponseb\x06proto3')
+
+_builder.BuildMessageAndEnumDescriptors(DESCRIPTOR, globals())
+_builder.BuildTopDescriptorsAndMessages(DESCRIPTOR, 'serve_milliseconds_pb2', globals())
+if _descriptor._USE_C_DESCRIPTORS == False:
+
+  DESCRIPTOR._options = None
+  _GETMILLISECONDSREQUEST._serialized_start=28
+  _GETMILLISECONDSREQUEST._serialized_end=70
+  _GETMILLISECONDSRESPONSE._serialized_start=72
+  _GETMILLISECONDSRESPONSE._serialized_end=119
+  _SERVEMILLISECONDS._serialized_start=121
+  _SERVEMILLISECONDS._serialized_end=210
+# @@protoc_insertion_point(module_scope)

src/funnel/stubs/serve_milliseconds_pb2.pyi

@@ -0,0 +1,17 @@
+from google.protobuf import descriptor as _descriptor
+from google.protobuf import message as _message
+from typing import ClassVar as _ClassVar, Optional as _Optional
+
+DESCRIPTOR: _descriptor.FileDescriptor
+
+class GetMillisecondsRequest(_message.Message):
+    __slots__ = ["timezone"]
+    TIMEZONE_FIELD_NUMBER: _ClassVar[int]
+    timezone: str
+    def __init__(self, timezone: _Optional[str] = ...) -> None: ...
+
+class GetMillisecondsResponse(_message.Message):
+    __slots__ = ["milliseconds"]
+    MILLISECONDS_FIELD_NUMBER: _ClassVar[int]
+    milliseconds: int
+    def __init__(self, milliseconds: _Optional[int] = ...) -> None: ...

src/funnel/stubs/serve_milliseconds_pb2_grpc.py

@@ -0,0 +1,66 @@
+# Generated by the gRPC Python protocol compiler plugin. DO NOT EDIT!
+"""Client and server classes corresponding to protobuf-defined services."""
+import grpc
+
+from . import serve_milliseconds_pb2 as serve__milliseconds__pb2
+
+
+class ServeMillisecondsStub(object):
+    """Missing associated documentation comment in .proto file."""
+
+    def __init__(self, channel):
+        """Constructor.
+
+        Args:
+            channel: A grpc.Channel.
+        """
+        self.GetMilliseconds = channel.unary_unary(
+                '/ServeMilliseconds/GetMilliseconds',
+                request_serializer=serve__milliseconds__pb2.GetMillisecondsRequest.SerializeToString,
+                response_deserializer=serve__milliseconds__pb2.GetMillisecondsResponse.FromString,
+                )
+
+
+class ServeMillisecondsServicer(object):
+    """Missing associated documentation comment in .proto file."""
+
+    def GetMilliseconds(self, request, context):
+        """Missing associated documentation comment in .proto file."""
+        context.set_code(grpc.StatusCode.UNIMPLEMENTED)
+        context.set_details('Method not implemented!')
+        raise NotImplementedError('Method not implemented!')
+
+
+def add_ServeMillisecondsServicer_to_server(servicer, server):
+    rpc_method_handlers = {
+            'GetMilliseconds': grpc.unary_unary_rpc_method_handler(
+                    servicer.GetMilliseconds,
+                    request_deserializer=serve__milliseconds__pb2.GetMillisecondsRequest.FromString,
+                    response_serializer=serve__milliseconds__pb2.GetMillisecondsResponse.SerializeToString,
+            ),
+    }
+    generic_handler = grpc.method_handlers_generic_handler(
+            'ServeMilliseconds', rpc_method_handlers)
+    server.add_generic_rpc_handlers((generic_handler,))
+
+
+ # This class is part of an EXPERIMENTAL API.
+class ServeMilliseconds(object):
+    """Missing associated documentation comment in .proto file."""
+
+    @staticmethod
+    def GetMilliseconds(request,
+            target,
+            options=(),
+            channel_credentials=None,
+            call_credentials=None,
+            insecure=False,
+            compression=None,
+            wait_for_ready=None,
+            timeout=None,
+            metadata=None):
+        return grpc.experimental.unary_unary(request, target, '/ServeMilliseconds/GetMilliseconds',
+            serve__milliseconds__pb2.GetMillisecondsRequest.SerializeToString,
+            serve__milliseconds__pb2.GetMillisecondsResponse.FromString,
+            options, channel_credentials,
+            insecure, call_credentials, compression, wait_for_ready, timeout, metadata)

src/funnel/stubs/serve_minutes_pb2.py

@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: serve_minutes.proto
+"""Generated protocol buffer code."""
+from google.protobuf.internal import builder as _builder
+from google.protobuf import descriptor as _descriptor
+from google.protobuf import descriptor_pool as _descriptor_pool
+from google.protobuf import symbol_database as _symbol_database
+# @@protoc_insertion_point(imports)
+
+_sym_db = _symbol_database.Default()
+
+
+
+
+DESCRIPTOR = _descriptor_pool.Default().AddSerializedFile(b'\n\x13serve_minutes.proto\"%\n\x11GetMinutesRequest\x12\x10\n\x08timezone\x18\x01 \x01(\t\"%\n\x12GetMinutesResponse\x12\x0f\n\x07minutes\x18\x01 \x01(\r2E\n\x0cServeMinutes\x12\x35\n\nGetMinutes\x12\x12.GetMinutesRequest\x1a\x13.GetMinutesResponseb\x06proto3')
+
+_builder.BuildMessageAndEnumDescriptors(DESCRIPTOR, globals())
+_builder.BuildTopDescriptorsAndMessages(DESCRIPTOR, 'serve_minutes_pb2', globals())
+if _descriptor._USE_C_DESCRIPTORS == False:
+
+  DESCRIPTOR._options = None
+  _GETMINUTESREQUEST._serialized_start=23
+  _GETMINUTESREQUEST._serialized_end=60
+  _GETMINUTESRESPONSE._serialized_start=62
+  _GETMINUTESRESPONSE._serialized_end=99
+  _SERVEMINUTES._serialized_start=101
+  _SERVEMINUTES._serialized_end=170
+# @@protoc_insertion_point(module_scope)

src/funnel/stubs/serve_minutes_pb2.pyi

@@ -0,0 +1,17 @@
+from google.protobuf import descriptor as _descriptor
+from google.protobuf import message as _message
+from typing import ClassVar as _ClassVar, Optional as _Optional
+
+DESCRIPTOR: _descriptor.FileDescriptor
+
+class GetMinutesRequest(_message.Message):
+    __slots__ = ["timezone"]
+    TIMEZONE_FIELD_NUMBER: _ClassVar[int]
+    timezone: str
+    def __init__(self, timezone: _Optional[str] = ...) -> None: ...
+
+class GetMinutesResponse(_message.Message):
+    __slots__ = ["minutes"]
+    MINUTES_FIELD_NUMBER: _ClassVar[int]
+    minutes: int
+    def __init__(self, minutes: _Optional[int] = ...) -> None: ...

src/funnel/stubs/serve_minutes_pb2_grpc.py

@@ -0,0 +1,66 @@
+# Generated by the gRPC Python protocol compiler plugin. DO NOT EDIT!
+"""Client and server classes corresponding to protobuf-defined services."""
+import grpc
+
+from . import serve_minutes_pb2 as serve__minutes__pb2
+
+
+class ServeMinutesStub(object):
+    """Missing associated documentation comment in .proto file."""
+
+    def __init__(self, channel):
+        """Constructor.
+
+        Args:
+            channel: A grpc.Channel.
+        """
+        self.GetMinutes = channel.unary_unary(
+                '/ServeMinutes/GetMinutes',
+                request_serializer=serve__minutes__pb2.GetMinutesRequest.SerializeToString,
+                response_deserializer=serve__minutes__pb2.GetMinutesResponse.FromString,
+                )
+
+
+class ServeMinutesServicer(object):
+    """Missing associated documentation comment in .proto file."""
+
+    def GetMinutes(self, request, context):
+        """Missing associated documentation comment in .proto file."""
+        context.set_code(grpc.StatusCode.UNIMPLEMENTED)
+        context.set_details('Method not implemented!')
+        raise NotImplementedError('Method not implemented!')
+
+
+def add_ServeMinutesServicer_to_server(servicer, server):
+    rpc_method_handlers = {
+            'GetMinutes': grpc.unary_unary_rpc_method_handler(
+                    servicer.GetMinutes,
+                    request_deserializer=serve__minutes__pb2.GetMinutesRequest.FromString,
+                    response_serializer=serve__minutes__pb2.GetMinutesResponse.SerializeToString,
+            ),
+    }
+    generic_handler = grpc.method_handlers_generic_handler(
+            'ServeMinutes', rpc_method_handlers)
+    server.add_generic_rpc_handlers((generic_handler,))
+
+
+ # This class is part of an EXPERIMENTAL API.
+class ServeMinutes(object):
+    """Missing associated documentation comment in .proto file."""
+
+    @staticmethod
+    def GetMinutes(request,
+            target,
+            options=(),
+            channel_credentials=None,
+            call_credentials=None,
+            insecure=False,
+            compression=None,
+            wait_for_ready=None,
+            timeout=None,
+            metadata=None):
+        return grpc.experimental.unary_unary(request, target, '/ServeMinutes/GetMinutes',
+            serve__minutes__pb2.GetMinutesRequest.SerializeToString,
+            serve__minutes__pb2.GetMinutesResponse.FromString,
+            options, channel_credentials,
+            insecure, call_credentials, compression, wait_for_ready, timeout, metadata)

src/funnel/stubs/serve_seconds_pb2.py

@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: serve_seconds.proto
+"""Generated protocol buffer code."""
+from google.protobuf.internal import builder as _builder
+from google.protobuf import descriptor as _descriptor
+from google.protobuf import descriptor_pool as _descriptor_pool
+from google.protobuf import symbol_database as _symbol_database
+# @@protoc_insertion_point(imports)
+
+_sym_db = _symbol_database.Default()
+
+
+
+
+DESCRIPTOR = _descriptor_pool.Default().AddSerializedFile(b'\n\x13serve_seconds.proto\"%\n\x11GetSecondsRequest\x12\x10\n\x08timezone\x18\x01 \x01(\t\"%\n\x12GetSecondsResponse\x12\x0f\n\x07seconds\x18\x01 \x01(\r2E\n\x0cServeSeconds\x12\x35\n\nGetSeconds\x12\x12.GetSecondsRequest\x1a\x13.GetSecondsResponseb\x06proto3')
+
+_builder.BuildMessageAndEnumDescriptors(DESCRIPTOR, globals())
+_builder.BuildTopDescriptorsAndMessages(DESCRIPTOR, 'serve_seconds_pb2', globals())
+if _descriptor._USE_C_DESCRIPTORS == False:
+
+  DESCRIPTOR._options = None
+  _GETSECONDSREQUEST._serialized_start=23
+  _GETSECONDSREQUEST._serialized_end=60
+  _GETSECONDSRESPONSE._serialized_start=62
+  _GETSECONDSRESPONSE._serialized_end=99
+  _SERVESECONDS._serialized_start=101
+  _SERVESECONDS._serialized_end=170
+# @@protoc_insertion_point(module_scope)

src/funnel/stubs/serve_seconds_pb2.pyi

@@ -0,0 +1,17 @@
+from google.protobuf import descriptor as _descriptor
+from google.protobuf import message as _message
+from typing import ClassVar as _ClassVar, Optional as _Optional
+
+DESCRIPTOR: _descriptor.FileDescriptor
+
+class GetSecondsRequest(_message.Message):
+    __slots__ = ["timezone"]
+    TIMEZONE_FIELD_NUMBER: _ClassVar[int]
+    timezone: str
+    def __init__(self, timezone: _Optional[str] = ...) -> None: ...
+
+class GetSecondsResponse(_message.Message):
+    __slots__ = ["seconds"]
+    SECONDS_FIELD_NUMBER: _ClassVar[int]
+    seconds: int
+    def __init__(self, seconds: _Optional[int] = ...) -> None: ...

src/funnel/stubs/serve_seconds_pb2_grpc.py

@@ -0,0 +1,66 @@
+# Generated by the gRPC Python protocol compiler plugin. DO NOT EDIT!
+"""Client and server classes corresponding to protobuf-defined services."""
+import grpc
+
+from . import serve_seconds_pb2 as serve__seconds__pb2
+
+
+class ServeSecondsStub(object):
+    """Missing associated documentation comment in .proto file."""
+
+    def __init__(self, channel):
+        """Constructor.
+
+        Args:
+            channel: A grpc.Channel.
+        """
+        self.GetSeconds = channel.unary_unary(
+                '/ServeSeconds/GetSeconds',
+                request_serializer=serve__seconds__pb2.GetSecondsRequest.SerializeToString,
+                response_deserializer=serve__seconds__pb2.GetSecondsResponse.FromString,
+                )
+
+
+class ServeSecondsServicer(object):
+    """Missing associated documentation comment in .proto file."""
+
+    def GetSeconds(self, request, context):
+        """Missing associated documentation comment in .proto file."""
+        context.set_code(grpc.StatusCode.UNIMPLEMENTED)
+        context.set_details('Method not implemented!')
+        raise NotImplementedError('Method not implemented!')
+
+
+def add_ServeSecondsServicer_to_server(servicer, server):
+    rpc_method_handlers = {
+            'GetSeconds': grpc.unary_unary_rpc_method_handler(
+                    servicer.GetSeconds,
+                    request_deserializer=serve__seconds__pb2.GetSecondsRequest.FromString,
+                    response_serializer=serve__seconds__pb2.GetSecondsResponse.SerializeToString,
+            ),
+    }
+    generic_handler = grpc.method_handlers_generic_handler(
+            'ServeSeconds', rpc_method_handlers)
+    server.add_generic_rpc_handlers((generic_handler,))
+
+
+ # This class is part of an EXPERIMENTAL API.
+class ServeSeconds(object):
+    """Missing associated documentation comment in .proto file."""
+
+    @staticmethod
+    def GetSeconds(request,
+            target,
+            options=(),
+            channel_credentials=None,
+            call_credentials=None,
+            insecure=False,
+            compression=None,
+            wait_for_ready=None,
+            timeout=None,
+            metadata=None):
+        return grpc.experimental.unary_unary(request, target, '/ServeSeconds/GetSeconds',
+            serve__seconds__pb2.GetSecondsRequest.SerializeToString,
+            serve__seconds__pb2.GetSecondsResponse.FromString,
+            options, channel_credentials,
+            insecure, call_credentials, compression, wait_for_ready, timeout, metadata)

src/protos/serve_currenttime.proto

@@ -1,7 +1,7 @@
 syntax = "proto3";
 package serve_currenttime;
 
-service ServeCurrentTime {
+service ServeCurrentTimeService {
   rpc GetCurrentTime(GetCurrentTimeRequest) returns (GetCurrentTimeResponse);
 }
 

src/serve_currenttime/main.js

@@ -1,24 +1,51 @@
-const messages = require("./stubs/serve_currenttime_pb");
-const services = require("./stubs/serve_currenttime_grpc_pb");
 const grpc = require("@grpc/grpc-js");
+const PROTO_PATH = "../protos/serve_currenttime.proto";
+const protoLoader = require("@grpc/proto-loader");
+var utc = require("dayjs/plugin/utc");
+
+const timezone = require("dayjs/plugin/timezone");
+const dayjs = require("dayjs");
+dayjs.extend(utc);
+dayjs.extend(timezone);
 
 const SERVE_CURRENTTIME_HOST = "localhost";
 const SERVE_CURRENTTIME_PORT = 50000;
 
-function getCurrentTime(call, callback) {
-    var response = new messages.GetCurrentTimeResponse();
-    response.setMessage("Hello " + call.request.getName());
-    callback(null, response);
+const options = {
+    keepCase: true,
+    longs: String,
+    enums: String,
+    defaults: true,
+    oneofs: true,
+};
+
+function getCurrentTime(request, callback) {
+    const timezone = request.timezone;
+    const now = dayjs().tz(timezone);
+
+    callback(null, {
+        hours: now.hour(),
+        minutes: now.minute(),
+        seconds: now.second(),
+        milliseconds: now.millisecond(),
+        formatted_time: now.format("YYYY-MM-DDTHH:mm:ss.SSS"),
+    });
 }
 
 function main() {
-    console.log(`Starting server on ${SERVE_CURRENTTIME_HOST}:${SERVE_CURRENTTIME_PORT}`);
-    var server = new grpc.Server();
-    server.addService(services.ServeCurrentTimeService, { getCurrentTime: getCurrentTime });
+    var packageDefinition = protoLoader.loadSync(PROTO_PATH, options);
+    const serveCurrentTimeProto = grpc.loadPackageDefinition(packageDefinition).serve_currenttime;
+    const server = new grpc.Server();
+
+    server.addService(serveCurrentTimeProto.ServeCurrentTimeService.service, {
+        getCurrentTime: getCurrentTime,
+    });
+
     server.bindAsync(
         `${SERVE_CURRENTTIME_HOST}:${SERVE_CURRENTTIME_PORT}`,
         grpc.ServerCredentials.createInsecure(),
         () => {
+            console.log(`Starting server on ${SERVE_CURRENTTIME_HOST}:${SERVE_CURRENTTIME_PORT}`);
             server.start();
         }
     );

src/serve_currenttime/package-lock.json

@@ -11,6 +11,8 @@
                 "@grpc/grpc-js": "^1.8.12",
                 "@grpc/proto-loader": "^0.7.5",
                 "async": "^3.2.4",
+                "dayjs": "^1.11.7",
+                "dayjs-timezone-iana-plugin": "^0.1.0",
                 "google-protobuf": "^3.21.2",
                 "grpc-tools": "^1.12.4",
                 "lodash": "^4.17.21",
@@ -256,6 +258,16 @@
             "resolved": "https://registry.npmjs.org/console-control-strings/-/console-control-strings-1.1.0.tgz",
             "integrity": "sha512-ty/fTekppD2fIwRvnZAVdeOiGd1c7YXEixbgJTNzqcxJWKQnjJ/V1bNEEE6hygpM3WjwHFUVK6HTjWSzV4a8sQ=="
         },
+        "node_modules/dayjs": {
+            "version": "1.11.7",
+            "resolved": "https://registry.npmjs.org/dayjs/-/dayjs-1.11.7.tgz",
+            "integrity": "sha512-+Yw9U6YO5TQohxLcIkrXBeY73WP3ejHWVvx8XCk3gxvQDCTEmS48ZrSZCKciI7Bhl/uCMyxYtE9UqRILmFphkQ=="
+        },
+        "node_modules/dayjs-timezone-iana-plugin": {
+            "version": "0.1.0",
+            "resolved": "https://registry.npmjs.org/dayjs-timezone-iana-plugin/-/dayjs-timezone-iana-plugin-0.1.0.tgz",
+            "integrity": "sha512-xc8cIZmi4oKr2nfu41I/FDWZKa8n8YaRMxSz9MrpXTNo8c6ZsjZuIoy5RPNmLXPqntFuITWI8obB7lUA+CdzGQ=="
+        },
         "node_modules/debug": {
             "version": "4.3.4",
             "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.4.tgz",
@@ -1060,6 +1072,16 @@
             "resolved": "https://registry.npmjs.org/console-control-strings/-/console-control-strings-1.1.0.tgz",
             "integrity": "sha512-ty/fTekppD2fIwRvnZAVdeOiGd1c7YXEixbgJTNzqcxJWKQnjJ/V1bNEEE6hygpM3WjwHFUVK6HTjWSzV4a8sQ=="
         },
+        "dayjs": {
+            "version": "1.11.7",
+            "resolved": "https://registry.npmjs.org/dayjs/-/dayjs-1.11.7.tgz",
+            "integrity": "sha512-+Yw9U6YO5TQohxLcIkrXBeY73WP3ejHWVvx8XCk3gxvQDCTEmS48ZrSZCKciI7Bhl/uCMyxYtE9UqRILmFphkQ=="
+        },
+        "dayjs-timezone-iana-plugin": {
+            "version": "0.1.0",
+            "resolved": "https://registry.npmjs.org/dayjs-timezone-iana-plugin/-/dayjs-timezone-iana-plugin-0.1.0.tgz",
+            "integrity": "sha512-xc8cIZmi4oKr2nfu41I/FDWZKa8n8YaRMxSz9MrpXTNo8c6ZsjZuIoy5RPNmLXPqntFuITWI8obB7lUA+CdzGQ=="
+        },
         "debug": {
             "version": "4.3.4",
             "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.4.tgz",

src/serve_currenttime/package.json

@@ -5,6 +5,8 @@
         "@grpc/grpc-js": "^1.8.12",
         "@grpc/proto-loader": "^0.7.5",
         "async": "^3.2.4",
+        "dayjs": "^1.11.7",
+        "dayjs-timezone-iana-plugin": "^0.1.0",
         "google-protobuf": "^3.21.2",
         "grpc-tools": "^1.12.4",
         "lodash": "^4.17.21",