$ pip install virtualenv
$ mkdir mock_server ; cd mock_server
$ virtualenv env 
$ source env/bin/activate
$ git clone https://github.com/rahulpyd/simple-mocks.git
$ cd simple-mocks
$ pip install -r requirements.txt
$ python server.py

localhost:3000/api/users

@app.route('/api/users', methods=['GET', 'POST'])
def mydata_handler():
    with open('users.json', 'r') as file:
       users = json.loads(file.read())

    if request.method == 'POST':
        data.append(request.form.to_dict())

        with open('users.json', 'w') as file:
            file.write(json.dumps(users, indent=4, separators=(',', ': ')))

    return Response(json.dumps(users), mimetype='application/json', 
                                    headers={'Cache-Control': 'no-cache'})