python-lab6/task_server.py at master · AmI-2016/python-lab6 · GitHub

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#!/usr/bin/python

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

fromflaskimportFlask, jsonify, abort, request, Response

importdb_interaction

app=Flask(__name__)

# ---------- REST SERVER ----------
@app.route('/api/v1.0/tasks', methods=['GET'])
defget_tasks():
#we try to get the search_substring
search_substring=request.args.get('search_substring')

#if the search_substring is not set we have to return the full list of tasks
ifsearch_substringisNone:
# init
tasks= []

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

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

# return the task data
returnjsonify({'tasks': tasks})
else:
#if the search_substring is set we have to return a filtered list of tasks

# init
tasks= []

# get the filtered task list from the db
task_list=db_interaction.get_filtered_tasks(search_substring)

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

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


@app.route('/api/v1.0/tasks/<int:task_id>', methods=['GET'])
defget_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
iftaskisNone:
abort(404)
# convert the task in a JSON representation
returnjsonify({'task': prepare_for_json(task)})


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

# check whether a task is present in the request or not
if (add_requestisnotNone) and ('description'inadd_request) and ('urgent'inadd_request):
text=add_request['description']
urgent=add_request['urgent']

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

returnResponse(status=200)

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


@app.route('/api/v1.0/tasks/<int:task_id>', methods=['PUT'])
defupdate_task(task_id):

# get the request body
add_request=request.json

# check whether a task is present in the request or not
ifadd_requestisnotNoneand ('description'and'urgent') inadd_request:
text=add_request['description']
urgent=add_request['urgent']
# update the task
task=db_interaction.update_task(int(task_id),text,urgent)

returnResponse(status=200)

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


@app.route('/api/v1.0/tasks/<int:task_id>', methods=['DELETE'])
defdelete_task(task_id):

# delete the task
task=db_interaction.delete_task(int(task_id))

returnResponse(status=200)


defprepare_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]
returntask


if__name__=='__main__':
app.run(debug=True)