flask开发restful风格api

先从flask最简单的例子开始，hello world~

#!venv/bin/python
from flask import Flask
app = Flask(__name__)

@app.route('/')
def index():
    return 'hello world\n'

if __name__ == '__main__':
    print 'server start...'
    app.run()

 来测试一下这个server吧

▶ curl 127.0.0.1:5000
hello world

再看一下server端

▶ ./app.py
server start...
 * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
127.0.0.1 - - [19/Mar/2018 13:05:24] "GET / HTTP/1.1" 200 -

再来看一下如何添加其他的http方法

#!venv/bin/python
from flask import Flask, jsonify
app = Flask(__name__)

@app.route('/api', methods = ['GET'])
def api_get():
    return jsonify({'msg':'this is a GET method'})

@app.route('/api', methods = ['POST'])
def api_post():
    return jsonify({'msg':'this is a POST method'})

@app.route('/api', methods = ['PUT'])
def api_put():
    return jsonify({'msg':'this is a PUT method'})

@app.route('/api', methods = ['DELETE'])
def api_del():
    return jsonify({'msg':'this is a DELETE method'})


if __name__ == '__main__':
    print 'server start...'
    app.run()

以PUT方法为例，看一下结果

▶ curl -X PUT 127.0.0.1:5000/api
{
  "msg": "this is a PUT method"
}

接下来就是设计数据模型。