README.md

Flask JSON-RPC

Basic JSON-RPC implementation for your Flask-powered sites.

Some reasons you might want to use:

• Simple, powerful, flexible, and pythonic API.
• Support JSON-RPC 2.0 version.
• Support python 3.6 or later.
• The web browsable API.
• Run-time type checking functions defined with PEP 484 argument (and return) type annotations.
• Extensive documentation, and great community support.

There is a live example API for testing purposes, available here.

Below: Screenshot from the browsable API

Adding Flask JSON-RPC to your application

1. Installation

$ pip install Flask-JSONRPC

or

$ git clone git://github.com/cenobites/flask-jsonrpc.git
$ cd flask-jsonrpc
$ python setup.py install

2. Getting Started

Create your application and initialize the Flask-JSONRPC.

from flask import Flask
from flask_jsonrpc import JSONRPC

app = Flask("application")
jsonrpc = JSONRPC(app, "/api", enable_web_browsable_api=True)

Write JSON-RPC methods.

@jsonrpc.method("App.index")
def index() -> str:
    return "Welcome to Flask JSON-RPC"

All code of example run.py.

3. Running

$ python run.py
 * Running on http://0.0.0.0:5000/

4. Testing

$ curl -i -X POST \
   -H "Content-Type: application/json; indent=4" \
   -d '{
    "jsonrpc": "2.0",
    "method": "App.index",
    "params": {},
    "id": "1"
}' http://localhost:5000/api

HTTP/1.0 200 OK
Content-Type: application/json
Content-Length: 77
Server: Werkzeug/0.8.3 Python/2.7.3
Date: Fri, 14 Dec 2012 19:26:56 GMT

{
  "jsonrpc": "2.0",
  "id": "1",
  "result": "Welcome to Flask JSON-RPC"
}

References

• http://docs.python.org/
• https://flask.palletsprojects.com/
• http://www.jsonrpc.org/