Update code in endpoints/books.post.py

endpoints/books.post.py

@@ -0,0 +1,62 @@
+Sure, here's an example of a FastAPI endpoint that saves a book to the database using SQLAlchemy and Pydantic:
+
+```python
+from typing import List
+from fastapi import FastAPI, HTTPException
+from pydantic import BaseModel
+from sqlalchemy import Column, Integer, String, create_engine
+from sqlalchemy.orm import sessionmaker
+from sqlalchemy.ext.declarative import declarative_base
+
+from app.api.models.books_model import *
+from app.api.schemas.books_schema import *
+# Create the database engine and session
+engine = create_engine('sqlite:///books.db', echo=True)
+Session = sessionmaker(bind=engine)
+session = Session()
+
+# Define the base class for SQLAlchemy models
+Base = declarative_base()
+
+# Define the Book model
+
+    class Config:
+        orm_mode = True
+
+# Define the FastAPI app
+app = FastAPI()
+
+# Define the POST endpoint to save a book
+@app.post('/books', response_model=BookSchema)
+def create_book(book: BookSchema):
+    # Create a new Book instance from the Pydantic schema
+    new_book = Book(title=book.title, author=book.author, description=book.description)
+
+    # Add the new book to the database session
+    session.add(new_book)
+    session.commit()
+
+    return new_book
+
+# Run the FastAPI app
+if __name__ == '__main__':
+    import uvicorn
+    uvicorn.run(app, host='0.0.0.0', port=8000)
+```
+
+Here's how it works:
+
+1. We define the `Book` model using SQLAlchemy, which maps to the `books` table in the database.
+2. We create a Pydantic `BookSchema` that defines the expected input data for a book.
+3. We define a `POST` endpoint at `/books` using FastAPI, which accepts a `BookSchema` instance as input.
+4. Inside the endpoint function, we create a new `Book` instance from the Pydantic schema data.
+5. We add the new `Book` instance to the database session and commit the changes.
+6. We return the newly created `Book` instance as the response.
+
+To test the endpoint, you can use a tool like `curl` or a REST client like Postman. Here's an example using `curl`:
+
+```
+curl -X POST -H "Content-Type: application/json" -d '{"title": "The Great Gatsby", "author": "F. Scott Fitzgerald", "description": "A classic novel about the Jazz Age."}' http://localhost:8000/books
+```
+
+This will create a new book in the `books.db` SQLite database file.