flask_sample.py

# coding: utf-8
from __future__ import unicode_literals
from flask import Flask, jsonify, session, request, redirect, url_for
app = Flask(__name__)


class User(object):
    fixtures = {
        '1': {
            'name': "Johnson",
            'age': 20,
            'height': 180,
            'weight': 70,
        },
        '2': {
            'name': "Mike",
            'age': 25,
            'height': 170,
            'weight': 60,
        },
    }

    class DoesNotExist(Exception):
        pass

    def __init__(self, **kwargs):
        for k, v in kwargs.items():
            setattr(self, k, v)

    @classmethod
    def get(cls, user_id):
        try:
            print type(user_id)
            fixture = cls.fixtures[user_id]
        except KeyError:
            raise cls.DoesNotExist('user_id:{}'.format(user_id))
        return cls(**fixture)

    def json_response(self):
        return jsonify(user_name=self.name,
                       user_age=self.age,
                       user_height=self.height,
                       user_weight=self.weight)


@app.route('/')
def index():
    if 'userid' in session:
        return redirect(url_for('home'))

    return redirect(url_for('login'))


@app.route('/login', methods=['POST'])
def login():
    if request.method == 'POST':
        session['userid'] = '1'
    else:
        raise
    return redirect(url_for('home'))


@app.route('/home')
@app.route('/home/<user_id>')
def home(user_id=None):
    if user_id is None:
        user_id = session.get('user_id')
    user = User.get(user_id)

    return user.json_response()


if __name__ == '__main__':
    app.run(debug=True)