restructure folders

protobuf/.gitignore

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+protobuf-python-3.11.2.zip
+protobuf-3.11.2/
+__pycache__/

protobuf/Cargo.toml

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+[package]
+name = "protobuf-example"
+version = "1.0.0"
+edition = "2021"
+
+[dependencies]
+actix = "0.12"
+actix-protobuf = "0.7.0-beta.5"
+actix-web = "4.0.0-rc.3"
+env_logger = "0.9"
+log = "0.4"
+prost = "0.9"
+prost-derive = "0.9"

protobuf/README.md

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+# protobuf
+
+## Usage
+
+### Server
+
+```shell
+cd other/protobuf
+cargo run
+```
+
+### Client
+
+```shell
+# Dependencies
+wget https://github.com/protocolbuffers/protobuf/releases/download/v3.11.2/protobuf-python-3.11.2.zip
+unzip protobuf-python-3.11.2.zip
+cd protobuf-3.11.2/python/
+python3 setup.py install
+pip3 install --upgrade pip
+pip3 install aiohttp
+
+# Client
+cd ../..
+python3 client.py
+```

protobuf/client.py

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+#!/usr/bin/env python3
+# just start server and run client.py
+
+# wget https://github.com/protocolbuffers/protobuf/releases/download/v3.11.2/protobuf-python-3.11.2.zip
+# unzip protobuf-python-3.11.2.zip
+# cd protobuf-3.11.2/python/
+# python3 setup.py install
+
+# pip3 install --upgrade pip
+# pip3 install aiohttp
+
+# python3 client.py
+
+import test_pb2
+import traceback
+import sys
+
+import asyncio
+import aiohttp
+
+def op():
+    try:
+        obj = test_pb2.MyObj()
+        obj.number = 9
+        obj.name = 'USB'
+
+        #Serialize
+        sendDataStr = obj.SerializeToString()
+        #print serialized string value
+        print('serialized string:', sendDataStr)
+        #------------------------#
+        #  message transmission  #
+        #------------------------#
+        receiveDataStr = sendDataStr
+        receiveData = test_pb2.MyObj()
+
+        #Deserialize
+        receiveData.ParseFromString(receiveDataStr)
+        print('pares serialize string, return: devId = ', receiveData.number, ', name = ', receiveData.name)
+    except(Exception, e):
+        print(Exception, ':', e)
+        print(traceback.print_exc())
+        errInfo = sys.exc_info()
+        print(errInfo[0], ':', errInfo[1])
+
+
+async def fetch(session):
+    obj = test_pb2.MyObj()
+    obj.number = 9
+    obj.name = 'USB'
+    async with session.post('http://127.0.0.1:8080/', data=obj.SerializeToString(),
+        headers={"content-type": "application/protobuf"}) as resp:
+        print(resp.status)
+        data = await resp.read()
+        receiveObj = test_pb2.MyObj()
+        receiveObj.ParseFromString(data)
+        print(receiveObj)
+
+async def go(loop):
+    obj = test_pb2.MyObj()
+    obj.number = 9
+    obj.name = 'USB'
+    async with aiohttp.ClientSession(loop=loop) as session:
+        await fetch(session)
+
+loop = asyncio.get_event_loop()
+loop.run_until_complete(go(loop))
+loop.close()

protobuf/src/main.rs

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+#[macro_use]
+extern crate prost_derive;
+
+use actix_protobuf::{ProtoBuf, ProtoBufResponseBuilder as _};
+use actix_web::{middleware, web, App, HttpResponse, HttpServer, Result};
+
+#[derive(Clone, PartialEq, Message)]
+pub struct MyObj {
+    #[prost(int32, tag = "1")]
+    pub number: i32,
+
+    #[prost(string, tag = "2")]
+    pub name: String,
+}
+
+async fn index(msg: ProtoBuf<MyObj>) -> Result<HttpResponse> {
+    log::info!("model: {:?}", msg);
+    HttpResponse::Ok().protobuf(msg.0) // <- send response
+}
+
+#[actix_web::main]
+async fn main() -> std::io::Result<()> {
+    env_logger::init_from_env(env_logger::Env::new().default_filter_or("info"));
+
+    log::info!("starting HTTP server at http://localhost:8080");
+
+    HttpServer::new(|| {
+        App::new()
+            .service(web::resource("/").route(web::post().to(index)))
+            .wrap(middleware::Logger::default())
+    })
+    .workers(1)
+    .bind(("127.0.0.1", 8080))?
+    .run()
+    .await
+}

protobuf/test.proto

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+syntax = "proto3";
+
+message MyObj {
+    int32 number = 1;
+    string name = 2;
+}

protobuf/test_pb2.py

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+# -*- coding: utf-8 -*-
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: test.proto
+
+from google.protobuf import descriptor as _descriptor
+from google.protobuf import message as _message
+from google.protobuf import reflection as _reflection
+from google.protobuf import symbol_database as _symbol_database
+# @@protoc_insertion_point(imports)
+
+_sym_db = _symbol_database.Default()
+
+
+
+
+DESCRIPTOR = _descriptor.FileDescriptor(
+  name='test.proto',
+  package='',
+  syntax='proto3',
+  serialized_options=None,
+  serialized_pb=b'\n\ntest.proto\"%\n\x05MyObj\x12\x0e\n\x06number\x18\x01 \x01(\x05\x12\x0c\n\x04name\x18\x02 \x01(\tb\x06proto3'
+)
+
+
+
+
+_MYOBJ = _descriptor.Descriptor(
+  name='MyObj',
+  full_name='MyObj',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='number', full_name='MyObj.number', index=0,
+      number=1, type=5, cpp_type=1, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      serialized_options=None, file=DESCRIPTOR),
+    _descriptor.FieldDescriptor(
+      name='name', full_name='MyObj.name', index=1,
+      number=2, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=b"".decode('utf-8'),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      serialized_options=None, file=DESCRIPTOR),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  serialized_options=None,
+  is_extendable=False,
+  syntax='proto3',
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=14,
+  serialized_end=51,
+)
+
+DESCRIPTOR.message_types_by_name['MyObj'] = _MYOBJ
+_sym_db.RegisterFileDescriptor(DESCRIPTOR)
+
+MyObj = _reflection.GeneratedProtocolMessageType('MyObj', (_message.Message,), {
+  'DESCRIPTOR' : _MYOBJ,
+  '__module__' : 'test_pb2'
+  # @@protoc_insertion_point(class_scope:MyObj)
+  })
+_sym_db.RegisterMessage(MyObj)
+
+
+# @@protoc_insertion_point(module_scope)