Python Flask：错误“请求的 URL 不允许使用该方法”

Question

I am very new to working with Python Flask and i wanted to try a simple API-example:

from flask import Flask, jsonify, request
from flask_restful import Resource, Api

app = Flask(__name__)
api = Api(app)

class HelloWorld(Resource):
    def get(self):
        some_json = request.get_json()
        return {'you sent': some_json}, 201

class Multi(Resource):
    def get(self,num):
        return {'result': num*10}

api.add_resource(HelloWorld, '/')
api.add_resource(Multi,'/multi/<int:num>')

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

and if I type in the terminal

-H "Content-Type: application/json" -X POST -d '{"name":"xyz","address":"myaddress"}' http://127.0.0.1:5000/

I get the following message:

{
    "message": "The method is not allowed for the requested URL."
}

I hope someone can help me with this...

Answer 1

Since your are calling the POST HTTP method. You should rename 'get' function in class HelloWorld to 'post'. 'HelloWorld' class can also have both 'get' and a 'post' functions if '/' endpoint should serves both.

from flask import Flask, jsonify, request
from flask_restful import Resource, Api

app = Flask(__name__)
api = Api(app)

class HelloWorld(Resource):
    def post(self):
        some_json = request.get_json()
        return {'you sent': some_json}, 201

class Multi(Resource):
    def get(self,num):
        return {'result': num*10}

api.add_resource(HelloWorld, '/')
api.add_resource(Multi,'/multi/<int:num>')

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