prototype of ui, db connection

app.py

@@ -1,7 +1,30 @@
-from flask import Flask, render_template
+import os
+from flask import Flask, render_template, request, redirect, url_for, session
+from flask_sqlalchemy import SQLAlchemy
 
 app = Flask("App")
+app.config["SQLALCHEMY_DATABASE_URI"] = "sqlite:////" + \
+    os.path.join(os.path.abspath(os.path.dirname(__file__)), "app.db")
+app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False
+app.secret_key = "SAFmdsdDkSukyuDd"
+db = SQLAlchemy(app)
 
-@app.route("/")
-def index():
-    return render_template("index.html")
+@app.route("/", methods=["POST", "GET"])
+def login():
+    if request.method == "POST":
+        name = request.form["name"]
+        password = request.form["password"]
+        session["user_name"] = name
+        session["user_password"] = password
+        return redirect(url_for("user_page", user_name=name))
+    else:
+        if "user_name" in session:
+            return redirect(url_for("user_page", user_name=session["user_name"]))
+        return render_template("login.html")
+
+
+@app.route("/<user_name>")
+def user_page(user_name):
+    if not "user_name" in session:
+        return redirect(url_for("login"))
+    return render_template("user_page.html")