import pymongo from flask import Flask, request, render_template, url_for, redirect app = Flask(__name__) @app.route("/", methods=['GET', 'POST']) def groclist_home(): error = None if request.method == 'POST': if request.form.get('login') == 'Inloggen': return redirect(url_for('groclist_login')) elif request.method == 'GET': return render_template('index.html') return render_template('index.html',error=error) @app.route("/welcome") def groclist_welcome(): return render_template("welcome.html") @app.route("/login", methods=['GET', 'POST']) def groclist_login(): error = None if request.method == 'POST': myclient = pymongo.MongoClient("mongodb://admin:pass@localhost:27017") mydb = myclient["groclist_db"] mycol = mydb["groclist_users"] username = request.form['username'] password = request.form['password'] name = "" if mycol.find_one({"username": username, "password": password}): # for user_info in mycol.find({}, {"name": 0}): # print("Welkom", user_info) return redirect(url_for('groclist_welcome')) else: error = 'Username of wachtwoord onbekend. Probeer opnieuw' return render_template("login.html", error=error) app.add_url_rule("/welcome", "welcome", groclist_welcome) # start server with run method if __name__ == "__main__": app.run(debug=True)