Create app.py

app.py

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+from flask import Flask, jsonify, request
+
+app = Flask(__name__)
+
+# Sample data - you can replace this with your actual data source
+books = [
+    {"id": 1, "title": "Python Programming", "author": "Guido van Rossum"},
+    {"id": 2, "title": "Flask Basics", "author": "Miguel Grinberg"},
+    {"id": 3, "title": "Data Science Handbook", "author": "Jake VanderPlas"}
+]
+
+# Route to get all books
+
+
+@app.route('/', methods=['GET'])
+def get_books_list():
+    return jsonify(books)
+
+
+@app.route('/books', methods=['GET'])
+def get_books():
+    return jsonify(books)
+
+# Route to get a specific book by ID
+
+
+@app.route('/books/<int:book_id>', methods=['GET'])
+def get_book(book_id):
+    book = next((book for book in books if book['id'] == book_id), None)
+    if book:
+        return jsonify(book)
+    else:
+        return jsonify({'message': 'Book not found'}), 404
+
+# Route to create a new book
+
+
+@app.route('/books', methods=['POST'])
+def create_book():
+    new_book = request.get_json()
+    books.append(new_book)
+    return jsonify({'message': 'Book created successfully'}), 201
+
+# Route to update a book
+
+
+@app.route('/books/<int:book_id>', methods=['PUT'])
+def update_book(book_id):
+    book = next((book for book in books if book['id'] == book_id), None)
+    if not book:
+        return jsonify({'message': 'Book not found'}), 404
+    else:
+        data = request.get_json()
+        book.update(data)
+        return jsonify({'message': 'Book updated successfully'})
+
+# Route to delete a book
+
+
+@app.route('/books/<int:book_id>', methods=['DELETE'])
+def delete_book(book_id):
+    global books
+    books = [book for book in books if book['id'] != book_id]
+    return jsonify({'message': 'Book deleted successfully'})
+
+
+if __name__ == '__main__':
+    app.run(debug=True)