add discount

api.saladeaula.digital/app/app.py

@@ -15,7 +15,7 @@ from aws_lambda_powertools.utilities.typing import LambdaContext
 from api_gateway import JSONResponse
 from json_encoder import JSONEncoder
 from middlewares.authentication_middleware import AuthenticationMiddleware
-from routes import courses, enrollments, orders, orgs, users
+from routes import coupons, courses, enrollments, orders, orgs, users
 
 logger = Logger(__name__)
 tracer = Tracer()
@@ -35,6 +35,7 @@ app = APIGatewayHttpResolver(
 )
 app.use(middlewares=[AuthenticationMiddleware()])
 app.enable_swagger(path='/swagger')
+app.include_router(coupons.router, prefix='/coupons')
 app.include_router(courses.router, prefix='/courses')
 app.include_router(enrollments.router, prefix='/enrollments')
 app.include_router(enrollments.cancel, prefix='/enrollments')

api.saladeaula.digital/app/routes/coupons/__init__.py

@@ -0,0 +1,25 @@
+from typing import Annotated
+
+from aws_lambda_powertools.event_handler.api_gateway import Router
+from aws_lambda_powertools.event_handler.exceptions import (
+    NotFoundError,
+)
+from aws_lambda_powertools.event_handler.openapi.params import Path
+from layercake.dynamodb import DynamoDBPersistenceLayer, KeyPair
+
+from boto3clients import dynamodb_client
+from config import ORDER_TABLE
+
+router = Router()
+dyn = DynamoDBPersistenceLayer(ORDER_TABLE, dynamodb_client)
+
+
+class CouponNotFoundError(NotFoundError): ...
+
+
+@router.get('/<coupon>')
+def coupon(coupon: Annotated[str, Path(min_length=3)]):
+    return dyn.collection.get_item(
+        KeyPair('COUPON', coupon.upper()),
+        exc_cls=CouponNotFoundError,
+    )