404 error while processing flask get request?

Question

Flask

Hello. There is a 404 error when trying to make a get request to the server on flask.

The request looks like this: 34.71.113.109/?MERCHANT_ID=213123&AMOUNT=2313&inti...

And here is the server code:

from flask import Flask

app = Flask(__name__)

@app.route("/?MERCHANT_ID=<shop_id>&AMOUNT=<price>&intid=<op_id>&MERCHANT_ORDER_ID=<chat_id>", methods=['GET'])
def hello(shop_id,price,op_id,chat_id):
    return f"{chat_id}"

app.run(host = "0.0.0.0", port = 80)

The program runs on a remote computer. The port is open. If you just return "hello world" everything works.

Answer 1

In route rules, you can only set address parameters, that is, if you write

@app.route(rule='/<foo>/<bar>', methods=['GET'])
def index(foo, bar):
    ....

This will mean that fooand barare address parameters, that is, example.com/asda/dasda. If you need to get address arguments, for example example.com/?foo=asda, then you need to use request.args, that is:

from flask import request

@app.route(rule='/', methods=['GET'])
def index():
    if request.args.get('foo'):
        return f'{request.args["foo"]}'
    ....