feat: pagination and query params for a deal end-point

utils/pagination.py

@@ -1,10 +1,13 @@
 from typing import Optional
 
+from fastapi import Query
+
 from schemas.base import PaginationSchema
 
 
 async def pagination_parameters(
-    page: Optional[int] = None, items_per_page: Optional[int] = None
+    page: Optional[int] = Query(default=None),
+    items_per_page: Optional[int] = Query(default=None, alias="itemsPerPage"),
 ) -> PaginationSchema:
     return PaginationSchema(page=page, items_per_page=items_per_page)
 
@@ -12,6 +15,6 @@ async def pagination_parameters(
 def is_valid_pagination(pagination: Optional[PaginationSchema]) -> bool:
     if not pagination:
         return False
-    return all(
-        [isinstance(pagination.items_per_page, int), isinstance(pagination.page, int)]
+    return isinstance(pagination.items_per_page, int) and isinstance(
+        pagination.page, int
     )