[YouTube] Add utility method to make InnerTube requests with custom

query parameters

This can be used to pass Google APIs standard parameters to requests.

Author: AudricV

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeParsingHelper.java

@@ -1017,9 +1017,9 @@ public static String getValidJsonResponseBody(@Nonnull final Response response)
         return responseBody;
     }
 
-    public static JsonObject getJsonPostResponse(final String endpoint,
+    public static JsonObject getJsonPostResponse(@Nonnull final String endpoint,
                                                  final byte[] body,
-                                                 final Localization localization)
+                                                 @Nonnull final Localization localization)
             throws IOException, ExtractionException {
         final var headers = getYouTubeHeaders();
 
@@ -1028,6 +1028,26 @@ public static JsonObject getJsonPostResponse(final String endpoint,
                         + DISABLE_PRETTY_PRINT_PARAMETER, headers, body, localization)));
     }
 
+    public static JsonObject getJsonPostResponse(@Nonnull final String endpoint,
+                                                 @Nonnull final List<String> queryParameters,
+                                                 final byte[] body,
+                                                 @Nonnull final Localization localization)
+            throws IOException, ExtractionException {
+        final var headers = getYouTubeHeaders();
+
+        final String queryParametersString;
+        if (queryParameters.isEmpty()) {
+            queryParametersString = "?" + DISABLE_PRETTY_PRINT_PARAMETER;
+        } else {
+            queryParametersString = "?" + String.join("&", queryParameters)
+                    + "&" + DISABLE_PRETTY_PRINT_PARAMETER;
+        }
+
+        return JsonUtils.toJsonObject(getValidJsonResponseBody(
+                getDownloader().postWithContentTypeJson(YOUTUBEI_V1_URL + endpoint
+                        + queryParametersString, headers, body, localization)));
+    }
+
     @Nonnull
     public static JsonBuilder<JsonObject> prepareDesktopJsonBuilder(
             @Nonnull final Localization localization,