Update code in endpoints/boy.get.py

endpoints/boy.get.py

@@ -0,0 +1,57 @@
+Sure, here's an example of a FastAPI endpoint that returns a list of books from a database using SQLAlchemy and Pydantic:
+
+```python
+from typing import List
+from fastapi import APIRouter, Depends
+from sqlalchemy.orm import Session
+from database import SessionLocal
+import models
+import schemas
+
+router = APIRouter()
+
+# Dependency
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()
+
+# SQLAlchemy model
+class Book(models.Base):
+    __tablename__ = "books"
+
+    id = models.Column(models.Integer, primary_key=True, index=True)
+    title = models.Column(models.String, index=True)
+    author = models.Column(models.String, index=True)
+    description = models.Column(models.String, index=True)
+
+# Pydantic schema
+class BookSchema(schemas.BaseModel):
+    id: int
+    title: str
+    author: str
+    description: str
+
+    class Config:
+        orm_mode = True
+
+@router.get("/books", response_model=List[BookSchema])
+def get_books(db: Session = Depends(get_db)):
+    books = db.query(Book).all()
+    return books
+```
+
+Here's a breakdown of the code:
+
+1. We import the necessary modules and classes from FastAPI, SQLAlchemy, and Pydantic.
+2. We define a SQLAlchemy model `Book` with columns for `id`, `title`, `author`, and `description`.
+3. We define a Pydantic schema `BookSchema` that maps to the `Book` model.
+4. We create a dependency function `get_db` that establishes a database session and yields it to the endpoint function.
+5. We define the `GET` endpoint `/books` that retrieves all books from the database using `db.query(Book).all()`.
+6. The `response_model` parameter is set to `List[BookSchema]`, which tells FastAPI to use the `BookSchema` to serialize the response data.
+
+To use this endpoint, you would need to have a running database with a table named `books` and the corresponding columns. When you send a `GET` request to `/books`, the endpoint will retrieve all books from the database and return them as a list of JSON objects.
+
+Note that this is a basic example, and you may want to add error handling, pagination, filtering, and other features depending on your requirements.