{"record":{"id":"1561bf4567f25fd3","repo":"microsoft/autogen","slug":"failed-to-update-session","errorCode":null,"errorMessage":"Failed to update session","messagePattern":"Failed to update session","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"python/packages/autogen-studio/frontend/src/components/views/playground/api.ts","lineNumber":72,"sourceCode":"    userId: string\n  ): Promise<Session> {\n    const session = {\n      ...sessionData,\n      id: sessionId,\n      user_id: userId, // Ensure user_id is included\n    };\n\n    const response = await fetch(\n      `${this.getBaseUrl()}/sessions/${sessionId}?user_id=${userId}`,\n      {\n        method: \"PUT\",\n        headers: this.getHeaders(),\n        body: JSON.stringify(session),\n      }\n    );\n    const data = await response.json();\n    if (!data.status)\n      throw new Error(data.message || \"Failed to update session\");\n    return data.data;\n  }\n\n  // session runs with messages\n  async getSessionRuns(\n    sessionId: number,\n    userId: string\n  ): Promise<SessionRuns> {\n    const response = await fetch(\n      `${this.getBaseUrl()}/sessions/${sessionId}/runs?user_id=${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 session runs\");\n    return data.data; // Returns { runs: RunMessage[] }","sourceCodeStart":54,"sourceCodeEnd":90,"githubUrl":"https://github.com/microsoft/autogen/blob/027ecf0a379bcc1d09956d46d12d44a3ad9cee14/python/packages/autogen-studio/frontend/src/components/views/playground/api.ts#L54-L90","documentation":"Thrown by SessionAPI.updateSession when PUT /sessions/{id}?user_id=... returns falsy status. It re-injects id and user_id into the body and PUTs the whole object; failures commonly stem from the session not existing/owned, or the updated payload failing backend validation.","triggerScenarios":"PUT /sessions/{sessionId} on a deleted session or one owned by another user_id, payload with fields the backend schema rejects, or concurrent deletion racing the update.","commonSituations":"Two tabs editing the same session, one deletes it and the other's save fails; session restored from stale state after backend DB reset; renamed/removed fields in the backend Session model after upgrade.","solutions":["Check data.message for the exact backend reason","Re-fetch the session first and 404-guard before updating (see exampleFix)","If it was deleted concurrently, recreate instead of updating","Align payload fields with the current backend Session schema"],"exampleFix":"// before\nawait sessionAPI.updateSession(sessionId, sessionData, userId);\n// after\nconst existing = await sessionAPI.getSession(sessionId, userId); // throws with clear message if gone\nawait sessionAPI.updateSession(sessionId, { ...existing, ...sessionData }, userId);","handlingStrategy":"try-catch","validationCode":"null","typeGuard":null,"tryCatchPattern":"try {\n  await sessionAPI.updateSession(sessionId, sessionData, userId);\n} catch (e) {\n  if (/not found|does not exist/i.test(String(e))) {\n    // deleted concurrently — recreate from current data\n    await sessionAPI.createSession(sessionData, userId);\n  } else throw e;\n}","preventionTips":["Re-fetch before update to detect concurrent deletion","Refresh the session list after any error to resync state","Optimistic UI should roll back on envelope failure"],"tags":["sessions","http","error-envelope","concurrency"],"backgroundTag":null,"analyzedSha":"027ecf0a379bcc1d09956d46d12d44a3ad9cee14","analyzedAt":"2026-08-15T03:38:00.719Z","schemaVersion":2},"datasetVersion":"2026-08-15T22:17:37.221Z"}