add drf_spectacular, type and serialize channel app

backend/common/serializers.py

@@ -0,0 +1,29 @@
+"""common serializers"""
+
+# pylint: disable=abstract-method
+
+from rest_framework import serializers
+
+
+class ErrorResponseSerializer(serializers.Serializer):
+    """error message"""
+
+    error = serializers.CharField()
+
+
+class PaginationSerializer(serializers.Serializer):
+    """serialize paginate response"""
+
+    page_size = serializers.IntegerField()
+    page_from = serializers.IntegerField()
+    prev_pages = serializers.ListField(
+        child=serializers.IntegerField(), allow_null=True
+    )
+    current_page = serializers.IntegerField()
+    max_hits = serializers.BooleanField()
+    params = serializers.CharField()
+    last_page = serializers.BooleanField()
+    next_pages = serializers.ListField(
+        child=serializers.IntegerField(), allow_null=True
+    )
+    total_hits = serializers.IntegerField()

backend/common/src/index_generic.py

@@ -106,7 +106,7 @@ class Pagination:
         page_get = self.page_get
         page_from = 0
         if page_get in [0, 1]:
-            prev_pages = False
+            prev_pages = None
         elif page_get > 1:
             page_from = (page_get - 1) * self.page_size
             prev_pages = [

backend/common/views_base.py

@@ -1,7 +1,5 @@
 """base classes to inherit from"""
 
-from appsettings.src.config import AppConfig
-from common.src.env_settings import EnvironmentSettings
 from common.src.es_connect import ElasticWrap
 from common.src.index_generic import Pagination
 from common.src.search_processor import SearchProcess, process_aggs
@@ -45,13 +43,7 @@ class ApiBaseView(APIView):
 
     def __init__(self):
         super().__init__()
-        self.response = {
-            "data": False,
-            "config": {
-                "enable_cast": EnvironmentSettings.ENABLE_CAST,
-                "downloads": AppConfig().config["downloads"],
-            },
-        }
+        self.response = {}
         self.data = {"query": {"match_all": {}}}
         self.status_code = False
         self.context = False
@@ -62,12 +54,12 @@ class ApiBaseView(APIView):
         path = f"{self.search_base}{document_id}"
         response, status_code = ElasticWrap(path).get()
         try:
-            self.response["data"] = SearchProcess(
+            self.response = SearchProcess(
                 response, match_video_user_progress=progress_match
             ).process()
         except KeyError:
             print(f"item not found: {document_id}")
-            self.response["data"] = False
+
         self.status_code = status_code
 
     def initiate_pagination(self, request):