attached files for my article : Flask (Python) : lire une requête GET

run.py

from my_app import app


if __name__ == "__main__":
    app.run()

test_requests.py

import requests
from pprint import pprint

BASE_URL = "http://127.0.0.1:5000/"

string = "alex"
integer = 20
QUERY = f"?name={string}&age={integer}"


def get_1():
    print("\n------- get_1_request.query_string -------")
    url = f"{BASE_URL}/get/1{QUERY}"
    print(f"{url=}")
    response = requests.get(url)
    pprint(response.json())


def get_2():
    print("\n------- request.args -------")
    url = f"{BASE_URL}/get/2{QUERY}"
    print(f"{url=}")
    response = requests.get(url)
    pprint(response.json())


def get_3():
    print("\n------- request.args + parsing -------")
    url = f"{BASE_URL}/get/3{QUERY}"
    print(f"{url=}")
    response = requests.get(url)
    pprint(response.json())


def get_3_default():
    print("\n------- request.args + parsing with default value -------")
    url = f"{BASE_URL}/get/3?age={integer}"
    print(f"{url=}")
    response = requests.get(url)
    pprint(response.json())


def get_3_string():
    print("\n------- parameter name -------")
    url = f"{BASE_URL}/get/3/{string}"
    print(f"{url=}")
    response = requests.get(url)
    pprint(response.json())


def get_3_integer():
    print("\n------- parameter age -------")
    url = f"{BASE_URL}/get/3/{integer}"
    print(f"{url=}")
    response = requests.get(url)
    pprint(response.json())


if __name__ == "__main__":
    get_1()
    input()
    get_2()
    input()
    get_3()
    input()
    get_3_default()
    input()
    get_3_string()
    input()
    get_3_integer()

views.py

# from flask import jsonify
from my_app import app
from flask import request

# Note that :
#
# app.route has the default parameter methods=["GET"]
# Then : @app.route("/get") is equivalent as : @app.route("/get", methods=["GET"])
#
# Flask builds the response, wrapping dict with flask.jsonify() and adding the status code 200
# Then : return {key: value} is equivalent as : return jsonify({key: value}), 200


# query_string
@app.route("/get/1")
def get_1():
    result = request.query_string.decode('UTF-8')
    return {"result": result}


# request.args
@app.route("/get/2")
def get_2():
    return request.args


# parse args
@app.route("/get/3")
def get_3():
    name = request.args.get("name", default="default name", type=str)
    age = request.args.get("age", default=50, type=int)
    return {"name": name, "age": age}


# string parameter
@app.route("/get/3/<string:name>")
def get_4(name):
    return {"name": name, "type": str(type(name))}


# int parameter
@app.route("/get/3/<int:age>")
def get_5(age):
    return {"age": age, "type": str(type(age))}