api_final.py

from flask import Flask, redirect, url_for, request, render_template
from requests import get 

app = Flask(__name__)
@app.route("/")
def pagina_inicial():
    return render_template("inicio.html")


@app.route("/Welcome")
def welcome():
    return render_template("welcome.html")

@app.route("/entrar")
def fazer_login():
    return render_template("login.html")

@app.route("/pagina403")
def pagina403():
    return render_template("pagina403.html")

@app.route("/validador", methods =["POST", "GET"])
def validador():
    acesso_u = "caio"
    acesso_s ="123"
    if request.method == "POST":
        usuario = request.form["c_usuario"]
        senha = request.form["c_senha"]
        if usuario == acesso_u and senha == acesso_s:
            return redirect(url_for("welcome"))
        else :
            return redirect(url_for("pagina403"))
    else:
        usuario  = request.args.get("c_usuario")
        senha = request.args.get("c_senha")
        if usuario == acesso_u and senha == acesso_s :
                return redirect(url_for("welcome"))
        else:
            return redirect(url_for("pagina403"))
            

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