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https://github.com/abersheeran/rpc.py

A fast and powerful RPC framework based on ASGI/WSGI.
https://github.com/abersheeran/rpc.py

annotation asgi cbor httpx json msgpack msgpack-rpc openapi-document pickle rpc rpc-framework wsgi

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A fast and powerful RPC framework based on ASGI/WSGI.

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README 

        
# rpc.py



[![Codecov](https://img.shields.io/codecov/c/github/abersheeran/rpc.py?style=flat-square)](https://codecov.io/gh/abersheeran/rpc.py)



An fast and powerful RPC framework based on ASGI/WSGI. Based on WSGI/ASGI, you can deploy the rpc.py server to any server and use http2 to get better performance. And based on httpx's support for multiple http protocols, the client can also use http/1.0, http/1.1 or http2.



You can freely use ordinary functions and asynchronous functions for one-time response. You can also use generator functions or asynchronous generator functions to stream responses.



## Install



Install from PyPi:



```bash

pip install rpc.py



# need use client

pip install rpc.py[client]



# need use pydantic type hint or OpenAPI docs

pip install rpc.py[type]



# need use msgpack to serializer

pip install rpc.py[msgpack]



# need use CBOR to serializer

pip install rpc.py[cbor]



# or install all dependencies

pip install rpc.py[full]

```



Install from github:



```bash

pip install git+https://github.com/abersheeran/[email protected]

```



## Usage



### Server side:



Use ASGI mode to register async def...



```python

from typing import AsyncGenerator

from typing_extensions import TypedDict



import uvicorn

from rpcpy import RPC



app = RPC(mode="ASGI")



@app.register

async def none() -> None:

    return



@app.register

async def sayhi(name: str) -> str:

    return f"hi {name}"



@app.register

async def yield_data(max_num: int) -> AsyncGenerator[int, None]:

    for i in range(max_num):

        yield i



D = TypedDict("D", {"key": str, "other-key": str})



@app.register

async def query_dict(value: str) -> D:

    return {"key": value, "other-key": value}



if __name__ == "__main__":

    uvicorn.run(app, interface="asgi3", port=65432)

```



OR



Use WSGI mode to register def...



```python

from typing import Generator

from typing_extensions import TypedDict



import uvicorn

from rpcpy import RPC



app = RPC()



@app.register

def none() -> None:

    return



@app.register

def sayhi(name: str) -> str:

    return f"hi {name}"



@app.register

def yield_data(max_num: int) -> Generator[int, None, None]:

    for i in range(max_num):

        yield i



D = TypedDict("D", {"key": str, "other-key": str})



@app.register

def query_dict(value: str) -> D:

    return {"key": value, "other-key": value}



if __name__ == "__main__":

    uvicorn.run(app, interface="wsgi", port=65432)

```



### Client side:



Notice: Regardless of whether the server uses the WSGI mode or the ASGI mode, the client can freely use the asynchronous or synchronous mode.



Use httpx.Client() mode to register def...



```python

from typing import Generator

from typing_extensions import TypedDict



import httpx

from rpcpy.client import Client



app = Client(httpx.Client(), base_url="http://127.0.0.1:65432/")



@app.remote_call

def none() -> None:

    ...



@app.remote_call

def sayhi(name: str) -> str:

    ...



@app.remote_call

def yield_data(max_num: int) -> Generator[int, None, None]:

    yield



D = TypedDict("D", {"key": str, "other-key": str})



@app.remote_call

def query_dict(value: str) -> D:

    ...

```



OR



Use httpx.AsyncClient() mode to register async def...



```python

from typing import AsyncGenerator

from typing_extensions import TypedDict



import httpx

from rpcpy.client import Client



app = Client(httpx.AsyncClient(), base_url="http://127.0.0.1:65432/")



@app.remote_call

async def none() -> None:

    ...



@app.remote_call

async def sayhi(name: str) -> str:

    ...



@app.remote_call

async def yield_data(max_num: int) -> AsyncGenerator[int, None]:

    yield



D = TypedDict("D", {"key": str, "other-key": str})



@app.remote_call

async def query_dict(value: str) -> D:

    ...

```



### Server as client



You can also write two copies of code in one place. Just make sure that `server.register` is executed before `client.remote_call`.



```python

import httpx

from rpcpy import RPC

from rpcpy.client import Client



server = RPC()

client = Client(httpx.Client(), base_url="http://127.0.0.1:65432/")



@client.remote_call

@server.register

def sayhi(name: str) -> str:

    return f"hi {name}"



if __name__ == "__main__":

    import uvicorn



    uvicorn.run(app, interface="wsgi", port=65432)

```



### Sub-route



If you need to deploy the rpc.py server under `example.com/sub-route/*`, you need to set `RPC(prefix="/sub-route/")` and modify the `Client(base_path=https://example.com/sub-route/)`.



### Serialization



Currently supports three serializers, JSON, Msgpack and CBOR. JSON is used by default. You can override the default `JSONSerializer` with parameters.



```python

from rpcpy.serializers import MsgpackSerializer, CBORSerializer



RPC(

    ...,

    response_serializer=MsgpackSerializer(),

)

# Or

Client(

    ...,

    request_serializer=CBORSerializer(),

)

```



## Type hint and OpenAPI Doc



Thanks to the great work of [pydantic](https://pydantic-docs.helpmanual.io/), which makes rpc.py allow you to use type annotation to annotate the types of function parameters and response values, and perform type verification and JSON serialization . At the same time, it is allowed to generate openapi documents for human reading.



### OpenAPI Documents



If you want to open the OpenAPI document, you need to initialize `RPC` like this `RPC(openapi={"title": "TITLE", "description": "DESCRIPTION", "version": "v1"})`.



Then, visit the `"{prefix}openapi-docs"` of RPC and you will be able to see the automatically generated OpenAPI documentation. (If you do not set the `prefix`, the `prefix` is `"/"`)



## Limitations



Currently, file upload is not supported, but you can do this by passing a `bytes` object.