task_server.py

#!/usr/bin/python

"""
Created on Apr 13, 2015
@author: Luigi De Russis
"""

from flask import Flask, jsonify, abort, request, Response, render_template
from flask_bootstrap import Bootstrap # needed for the simple web client, only

import db_interaction

app = Flask(__name__)

# ---------- SIMPLE CLIENT ----------
Bootstrap(app)


@app.route('/')
def index():
 return render_template('index.html')


# ---------- REST SERVER ----------
@app.route('/api/v1.0/tasks', methods=['GET'])
def get_tasks():
 # init
 tasks = []

 # get the task list from the db
 task_list = db_interaction.get_tasks()

 # prepare the task list for jsonify
 for item in task_list:
 task = prepare_for_json(item)
 tasks.append(task)

 # return the task data
 return jsonify({'tasks': tasks})


@app.route('/api/v1.0/tasks/<int:task_id>', methods=['GET'])
def get_task(task_id):
 # get the task
 task = db_interaction.get_task(int(task_id))

 # return 404 not found if no task has the given id
 if task is None:
 abort(404)
 # convert the task in a JSON representation
 return jsonify({'task': prepare_for_json(task)})


@app.route('/api/v1.0/tasks', methods=['POST'])
def insert_task():
 # get the request body
 add_request = request.json

 # check whether a task is present in the request or not
 if (add_request is not None) and ('description' in add_request) and ('urgent' in add_request):
 text = add_request['description']
 urgent = add_request['urgent']

 # insert in the database
 db_interaction.insert_task(text, urgent)

 return Response(status=200)

 # return an error in case of problems
 abort(403)


def prepare_for_json(item):
 """
 Convert the task in a dictionary for easing the JSON creation
 """
 task = dict()
 task['id'] = item[0]
 task['description'] = item[1]
 task['urgent'] = item[2]
 return task


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