api demo in flask environment

helloflask.py

from flask import Flask, request

app = Flask(__name__)

@app.route("/")
def hello_world():
    searchword = request.args.get('key', '')
    
    return {
        "searchword": searchword,
        "username": "ivan",
        "first_name": "ivan",
        "last_name": "santos",
        "hobbies": "badminton"
    } 
    

    
@app.route("/sum")
def sum():
    a = request.args.get('a', 0)
    b= request.args.get('b',0)
    
    return {
        "sum": float(a) + float(b)
    } 

    
@app.route("/authenticate", methods=["POST"])
def authenticate():
      
    username = request.form['username']
    password = request.form['password'] 
    
    res = False
    if(username == "ivan" and password == "ivan"): 
        res = True
    
    return {
        "username": username,
        "password": password,
        "authenticated": res 
    }