Implement CRUD operations for employees

Added CRUD operations for employee records including insert, update, delete, and fetch all.

Author: Pedro777-dev

app.py

@@ -1,14 +1,65 @@
-from flask import Flask
-import os
+from flask import Flask, request, jsonify
+import mysql.connector
 
 app = Flask(__name__)
 
-@app.route('/')
-def hello():
-    return "Hello World!"
+def get_db():
+    return mysql.connector.connect(
+        host="localhost",
+        user="your_user",
+        password="your_password",
+        database="your_database"
+    )
 
-if __name__ == '__main__':
-    port = os.environ.get('FLASK_PORT') or 8080
-    port = int(port)
+# INSERT
+@app.route("/insert", methods=["POST"])
+def insert_row():
+    data = request.json
+    name = data.get("name")
+    role = data.get("role")
 
-    app.run(port=port,host='0.0.0.0')
+    conn = get_db()
+    cursor = conn.cursor()
+    cursor.execute("INSERT INTO employees (name, role) VALUES (%s, %s)", (name, role))
+    conn.commit()
+
+    return jsonify({"message": "Row inserted", "id": cursor.lastrowid})
+
+# UPDATE
+@app.route("/update/<int:emp_id>", methods=["PUT"])
+def update_row(emp_id):
+    data = request.json
+    name = data.get("name")
+    role = data.get("role")
+
+    conn = get_db()
+    cursor = conn.cursor()
+    cursor.execute(
+        "UPDATE employees SET name=%s, role=%s WHERE id=%s",
+        (name, role, emp_id)
+    )
+    conn.commit()
+
+    return jsonify({"message": "Row updated"})
+
+# DELETE
+@app.route("/delete/<int:emp_id>", methods=["DELETE"])
+def delete_row(emp_id):
+    conn = get_db()
+    cursor = conn.cursor()
+    cursor.execute("DELETE FROM employees WHERE id=%s", (emp_id,))
+    conn.commit()
+
+    return jsonify({"message": "Row deleted"})
+
+# OPTIONAL: fetch all rows
+@app.route("/employees", methods=["GET"])
+def get_all():
+    conn = get_db()
+    cursor = conn.cursor(dictionary=True)
+    cursor.execute("SELECT * FROM employees")
+    rows = cursor.fetchall()
+    return jsonify(rows)
+
+if __name__ == "__main__":
+    app.run(debug=True)