{"record":{"id":"f422067b664f7b49","repo":"microsoft/autogen","slug":"failed-to-delete-session","errorCode":null,"errorMessage":"Failed to delete session","messagePattern":"Failed to delete session","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"python/packages/autogen-studio/frontend/src/components/views/playground/api.ts","lineNumber":103,"sourceCode":"      }\n    );\n    const data = await response.json();\n    if (!data.status)\n      throw new Error(data.message || \"Failed to fetch session runs\");\n    return data.data; // Returns { runs: RunMessage[] }\n  }\n\n  async deleteSession(sessionId: number, userId: string): Promise<void> {\n    const response = await fetch(\n      `${this.getBaseUrl()}/sessions/${sessionId}?user_id=${userId}`,\n      {\n        method: \"DELETE\",\n        headers: this.getHeaders(),\n      }\n    );\n    const data = await response.json();\n    if (!data.status)\n      throw new Error(data.message || \"Failed to delete session\");\n  }\n\n  // Adding messages endpoint\n  async listSessionMessages(sessionId: number, userId: string): Promise<any[]> {\n    // Replace 'any' with proper message type\n    const response = await fetch(\n      `${this.getBaseUrl()}/sessions/${sessionId}/messages?user_id=${userId}`,\n      {\n        headers: this.getHeaders(),\n      }\n    );\n    const data = await response.json();\n    if (!data.status)\n      throw new Error(data.message || \"Failed to fetch messages\");\n    return data.data;\n  }\n\n  // New method to create a run","sourceCodeStart":85,"sourceCodeEnd":121,"githubUrl":"https://github.com/microsoft/autogen/blob/027ecf0a379bcc1d09956d46d12d44a3ad9cee14/python/packages/autogen-studio/frontend/src/components/views/playground/api.ts#L85-L121","documentation":"Thrown by SessionAPI.deleteSession when DELETE /sessions/{id}?user_id=... returns falsy status. The method has no return value; failure means the backend declined the delete — usually the session does not exist or belongs to a different user_id.","triggerScenarios":"DELETE on an already-deleted session id (double delete, stale UI list), sessionId owned by another user, or DB error during deletion.","commonSituations":"Two components both reacting to a delete action, list not refreshed after first delete, user switched but old sessionId still selected.","solutions":["Make delete idempotent in the UI: treat 'not found' as success or refresh the list before allowing delete","Check data.message for the backend reason","Confirm the sessionId in state matches a row in the currently rendered list","Refresh sessions after any delete to resync state"],"exampleFix":"// before\nawait sessionAPI.deleteSession(sessionId, userId);\n// after\ntry {\n  await sessionAPI.deleteSession(sessionId, userId);\n} catch (e) {\n  const sessions = await sessionAPI.listSessions(userId);\n  if (!sessions.some(s => s.id === sessionId)) return; // already gone — treat as success\n  throw e;\n}","handlingStrategy":"try-catch","validationCode":"null","typeGuard":null,"tryCatchPattern":"try {\n  await sessionAPI.deleteSession(sessionId, userId);\n} catch (e) {\n  const sessions = await sessionAPI.listSessions(userId);\n  if (!sessions.some(s => s.id === sessionId)) return; // already deleted — success\n  throw e;\n}\nawait refreshSessions();","preventionTips":["Make delete idempotent in the UI (idempotency via list re-check)","Refresh the session list after every delete","Disable the delete button per-row while a delete is in flight"],"tags":["sessions","http","delete","error-envelope"],"backgroundTag":null,"analyzedSha":"027ecf0a379bcc1d09956d46d12d44a3ad9cee14","analyzedAt":"2026-08-15T03:38:00.719Z","schemaVersion":2},"datasetVersion":"2026-08-15T22:17:37.221Z"}