@web_bp.route('/login', methods=['GET', 'POST'])
def login():
    if request.method == 'POST':
        # Delegate request to API login with converting Content-Type to json
        api_env = request.environ.copy()
        api_req = json.dumps(dict(username=request.form['username'], password=request.form['password']))
        api_env['CONTENT_TYPE'] = 'application/json'
        api_env['CONTENT_LENGTH'] = len(api_req)
        api_env['wsgi.input'] = StringIO(api_req)

        with current_app.request_context(api_env):
            response = current_app.view_functions['api.login']()

        # Dispatch response
        if response.status_code < 300:
            # Success
            # TODO Keep session
            return redirect('index.html')
        else:
            # TODO Error page or another
            return response

    return render_template('login.html')