pierrejeambrun commented on code in PR #67095:
URL: https://github.com/apache/airflow/pull/67095#discussion_r3279664186


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airflow-core/src/airflow/ui/src/queries/useBulkDeleteDagRuns.ts:
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@@ -0,0 +1,97 @@
+/*!
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+import { useQueryClient } from "@tanstack/react-query";
+import { useState } from "react";
+import { useTranslation } from "react-i18next";
+
+import {
+  useDagRunServiceBulkDagRuns,
+  useDagRunServiceGetDagRunsKey,
+  useTaskInstanceServiceGetTaskInstancesKey,
+} from "openapi/queries";
+import type { BulkActionResponse, BulkBody_BulkDAGRunBody_, BulkResponse } 
from "openapi/requests/types.gen";
+import { toaster } from "src/components/ui";
+
+type Props = {
+  readonly clearSelections: VoidFunction;
+  readonly onSuccessConfirm: VoidFunction;
+};
+
+const handleActionResult = (
+  actionResult: BulkActionResponse,
+  setError: (error: unknown) => void,
+  onSuccess: (count: number, keys: Array<string>) => void,
+) => {
+  const { errors, success } = actionResult;
+
+  if (Array.isArray(errors) && errors.length > 0) {
+    const apiError = errors[0] as { error: string };
+
+    setError({ body: { detail: apiError.error } });
+  } else if (Array.isArray(success) && success.length > 0) {
+    onSuccess(success.length, success);
+  }
+};
+
+export const useBulkDeleteDagRuns = ({ clearSelections, onSuccessConfirm }: 
Props) => {
+  const queryClient = useQueryClient();
+  const [error, setError] = useState<unknown>(undefined);

Review Comment:
   We do this because bulk endpoints can partially succeed. Answer '200' but 
with the errors field containing the errors. So we need to handle both. Plain 
error response status code != 2xx that's handled by react query. And response 
partially succeeded, `errors` field is not empty and response is 200.
   
   ```
   class BulkActionResponse(BaseModel):
       """
       Serializer for individual bulk action responses.
   
       Represents the outcome of a single bulk operation (create, update, or 
delete).
       The response includes a list of successful keys and any errors 
encountered during the operation.
       This structure helps users understand which key actions succeeded and 
which failed.
       """
   
       success: list[str] = Field(
           default=[], description="A list of unique id/key representing 
successful operations."
       )
       errors: list[dict[str, Any]] = Field(
           default=[],
           description="A list of errors encountered during the operation, each 
containing details about the issue.",
       )
   ```



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