feat!: migrate from Node.js to Flask with SQLite

app.py

@@ -0,0 +1,46 @@
+from flask import Flask, render_template, request, redirect, url_for
+import sqlite3
+
+app = Flask(__name__)
+DATABASE = 'guestbook.db'
+
+def init_db():
+    conn = sqlite3.connect(DATABASE)
+    c = conn.cursor()
+    c.execute('''
+        CREATE TABLE IF NOT EXISTS guests (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            name TEXT NOT NULL,
+            email TEXT NOT NULL,
+            location TEXT NOT NULL,
+            timestamp DATETIME DEFAULT CURRENT_TIMESTAMP
+        )
+    ''')
+    conn.commit()
+    conn.close()
+
+@app.route('/', methods=['GET', 'POST'])
+def index():
+    if request.method == 'POST':
+        name = request.form.get('name')
+        email = request.form.get('email')
+        location = request.form.get('location')
+        if name and email and location:
+            conn = sqlite3.connect(DATABASE)
+            c = conn.cursor()
+            c.execute('INSERT INTO guests (name, email, location) VALUES (?, ?, ?)',
+                      (name, email, location))
+            conn.commit()
+            conn.close()
+            return redirect(url_for('index'))
+    # Retrieve guest entries to display on the page.
+    conn = sqlite3.connect(DATABASE)
+    c = conn.cursor()
+    c.execute('SELECT name, email, location, timestamp FROM guests ORDER BY id DESC')
+    guests = c.fetchall()
+    conn.close()
+    return render_template('index.html', guests=guests)
+
+if __name__ == '__main__':
+    init_db()
+    app.run(host='0.0.0.0', port=5000)