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日誌端點

檢索您的 AgentBuilder FLOW和伺服器的日誌。

啟用日誌檢索​

/logs 端點需要在您的 AgentBuilder 實例中啟用日誌檢索。

要啟用日誌檢索，請在您的 AgentBuilder .env 檔案中包含設定以下 環境變數，然後使用 uv run langflow run --env-file .env 啟動 AgentBuilder：


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LANGFLOW_ENABLE_LOG_RETRIEVAL=True
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LANGFLOW_LOG_RETRIEVER_BUFFER_SIZE=10000. // 必須大於 0
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LANGFLOW_LOG_LEVEL=DEBUG. // 可以是 DEBUG、ERROR、INFO、WARNING 或 CRITICAL

串流日誌​

使用伺服器發送事件 (SSE) 實時串流日誌：


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curl -X GET \
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"$LANGFLOW_URL/logs-stream" \
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-H "accept: text/event-stream" \
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-H "x-api-key: $LANGFLOW_API_KEY"

Result

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keepalive
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{"1736355791151": "2025-01-08T12:03:11.151218-0500 DEBUG Building Chat Input\n"}
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{"1736355791485": "2025-01-08T12:03:11.485380-0500 DEBUG consumed event add_message-153bcd5d-ef4d-4ece-8cc0-47c6b6a9ef92 (time in queue, 0.0000, client 0.0001)\n"}
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{"1736355791499": "2025-01-08T12:03:11.499704-0500 DEBUG consumed event end_vertex-3d7125cd-7b8a-44eb-9113-ed5b785e3cf3 (time in queue, 0.0056, client 0.0047)\n"}
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{"1736355791502": "2025-01-08T12:03:11.502510-0500 DEBUG consumed event end-40d0b363-5618-4a23-bbae-487cd0b9594d (time in queue, 0.0001, client 0.0004)\n"}
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{"1736355791513": "2025-01-08T12:03:11.513097-0500 DEBUG Logged vertex build: 729ff2f8-6b01-48c8-9ad0-3743c2af9e8a\n"}
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{"1736355791834": "2025-01-08T12:03:11.834982-0500 DEBUG Telemetry data sent successfully.\n"}
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{"1736355791941": "2025-01-08T12:03:11.941840-0500 DEBUG Telemetry data sent successfully.\n"}
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keepalive

使用可選參數檢索日誌​

使用可選查詢參數檢索日誌：

  • lines_before：時間戳或最後日誌之前的日誌數量。
  • lines_after：時間戳之後的日誌數量。
  • timestamp：開始獲取日誌的時間戳。

所有三個參數的預設值為 0。 使用預設值時，端點返回最後 10 行日誌。


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curl -X GET \
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"$LANGFLOW_URL/logs?lines_before=0&lines_after=0&timestamp=0" \
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-H "accept: application/json" \
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-H "x-api-key: $LANGFLOW_API_KEY"

Result

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{
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"1736354770500": "2025-01-08T11:46:10.500363-0500 DEBUG Creating starter project Document Q&A\n",
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"1736354770511": "2025-01-08T11:46:10.511146-0500 DEBUG Creating starter project Image Sentiment Analysis\n",
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"1736354770521": "2025-01-08T11:46:10.521018-0500 DEBUG Creating starter project SEO Keyword Generator\n",
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"1736354770532": "2025-01-08T11:46:10.532677-0500 DEBUG Creating starter project Sequential Tasks Agents\n",
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"1736354770544": "2025-01-08T11:46:10.544010-0500 DEBUG Creating starter project Custom Component Generator\n",
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"1736354770555": "2025-01-08T11:46:10.555513-0500 DEBUG Creating starter project Prompt Chaining\n",
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"1736354770588": "2025-01-08T11:46:10.588105-0500 DEBUG Create service ServiceType.CHAT_SERVICE\n",
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"1736354771021": "2025-01-08T11:46:11.021817-0500 DEBUG Telemetry data sent successfully.\n",
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"1736354775619": "2025-01-08T11:46:15.619545-0500 DEBUG Create service ServiceType.STORE_SERVICE\n",
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"1736354775699": "2025-01-08T11:46:15.699661-0500 DEBUG File 046-rocket.svg retrieved successfully from flow /Users/USER/Library/Caches/langflow/profile_pictures/Space.\n"
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}

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