在相同的Flask视图中处理GET和POST

Question

request.form["name"]例如,当我输入从POST提交的表单中检索名称时,我是否还要编写一个看起来像的单独分支request.form.get["name"]？如果我想支持这两种方法,需要为所有POST和所有GET请求编写单独的语句吗？

@app.route("/register", methods=["GET", "POST"])
def register():
    """Register user."""

我的问题与使用python和Flask获取请求变量的值相关.

Answer 1

您可以区分使用request.method此处概述的实际方法:http://flask.pocoo.org/docs/0.10/quickstart/#http-methods

我假设你想:

• 使用GET方法触发路径时渲染模板
• 读取表单输入并在触发路由时注册用户 POST

因此,您的案例类似于文档中描述的案例(上面链接):

import flask
app = flask.Flask('your_flask_env')

@app.route('/register', methods=['GET', 'POST'])
def register():
    if flask.request.method == 'POST':
        username = flask.request.values.get('user') # Your form's
        password = flask.request.values.get('pass') # input names
        your_register_routine(username, password)
    else:
        # You probably don't have args at this route with GET
        # method, but if you do, you can access them like so:
        yourarg = flask.request.args.get('argname')
        your_register_template_rendering(yourarg)

Answer 2

在此示例中，您可以轻松找到使用 POST、GET 方法的方法，并使用相同的方法添加其他 Curd 操作。

#libraries to include

import os
from flask import request, jsonify
from app import app, mongo
import logger
ROOT_PATH = os.environ.get('ROOT_PATH')
@app.route('/get/questions/', methods=['GET', 'POST','DELETE', 'PATCH'])
def question():
# request.args is to get urls arguments 


    if request.method == 'GET':
        start = request.args.get('start', default=0, type=int)
        limit_url = request.args.get('limit', default=20, type=int)
        questions = mongo.db.questions.find().limit(limit_url).skip(start);
        data = [doc for doc in questions]
        return jsonify(isError= False,
                    message= "Success",
                    statusCode= 200,
                    data= data), 200

    # request.form to get form parameter

    if request.method == 'POST':
        average_time = request.form.get('average_time')
        choices = request.form.get('choices')
        created_by = request.form.get('created_by')
        difficulty_level = request.form.get('difficulty_level')
        question = request.form.get('question')
        topics = request.form.get('topics')

        ##Do something like insert in DB or Render somewhere etc. it's up to you....... :)