13 KiB
Integrate LangFuse
1. What is Langfuse
Langfuse is an open-source LLM engineering platform that helps teams collaborate on debugging, analyzing, and iterating their applications.
{% hint style="info" %} Introduction to Langfuse: https://langfuse.com/ {% endhint %}
2. How to Configure Langfuse
- Register and log in to Langfuse on the official website
- Create a project in Langfuse. After logging in, click New on the homepage to create your own project. The project will be used to associate with applications in Dify for data monitoring.

Create a project in Langfuse
Edit a name for the project.

Create a project in Langfuse
- Create project API credentials. In the left sidebar of the project, click Settings to open the settings.

Create project API credentials
In Settings, click Create API Keys to create project API credentials.

Create project API credentials
Copy and save the Secret Key, Public Key, and Host.

Get API Key configuration
- Configure Langfuse in Dify. Open the application you need to monitor, open Monitoring in the side menu, and select Configure on the page.

Configure Langfuse
After clicking configure, paste the Secret Key, Public Key, Host created in Langfuse into the configuration and save.

Configure Langfuse
Once successfully saved, you can view the status on the current page. If it shows as started, it is being monitored.

View configuration status
3. Viewing Monitoring Data in Langfuse
After configuration, debugging or production data of the application in Dify can be viewed in Langfuse.

Debugging applications in Dify

Viewing application data in Langfuse

Viewing application data in Langfuse
4 List of monitoring data
Trace the information of Workflow and Chatflow
Tracing workflow and chatflow
| Workflow | LangFuse Trace |
|---|---|
| workflow_app_log_id/workflow_run_id | id |
| user_session_id | user_id |
| workflow_{id} | name |
| start_time | start_time |
| end_time | end_time |
| inputs | input |
| outputs | output |
| 模型token消耗相关 | usage |
| metadata | metadata |
| error | level |
| error | status_message |
| [workflow] | tags |
| conversation_id/workflow时无 | session_id |
| conversion_id | parent_observation_id |
Workflow Trace Info
- workflow_id - Unique ID of Workflow
- conversation_id - Conversation ID
- workflow_run_id - Workflow ID of this runtime
- tenant_id - Tenant ID
- elapsed_time - Elapsed time at this runtime
- status - Runtime status
- version - Workflow version
- total_tokens - Total token used at this runtime
- file_list - List of files processed
- triggered_from - Source that triggered this runtime
- workflow_run_inputs - Input of this workflow
- workflow_run_outputs - Output of this workflow
- error - Error Message
- query - Queries used at runtime
- workflow_app_log_id - Workflow Application Log ID
- message_id - Relavent Message ID
- start_time - Start time of this runtime
- end_time - End time of this runtime
- workflow node executions - Workflow node runtime information
- Metadata
- workflow_id - Unique ID of Workflow
- conversation_id - Conversation ID
- workflow_run_id - Workflow ID of this runtime
- tenant_id - Tenant ID
- elapsed_time - Elapsed time at this runtime
- status - Operational state
- version - Workflow version
- total_tokens - Total token used at this runtime
- file_list - List of files processed
- triggered_from - Source that triggered this runtime
Message Trace Info
For trace llm conversation
| Message | LangFuse Generation/Trace |
|---|---|
| message_id | id |
| user_session_id | user_id |
| message_{id} | name |
| start_time | start_time |
| end_time | end_time |
| inputs | input |
| outputs | output |
| 模型token消耗相关 | usage |
| metadata | metadata |
| error | level |
| error | status_message |
| ["message", conversation_mode] | tags |
| conversation_id | session_id |
| conversion_id | parent_observation_id |
Message Trace Info
- message_id - Message ID
- message_data - Message data
- user_session_id - Session ID for user
- conversation_model - Conversation model
- message_tokens - Message tokens
- answer_tokens - Answer Tokens
- total_tokens - Total Tokens from Message and Answer
- error - Error Message
- inputs - Input data
- outputs - Output data
- file_list - List of files processed
- start_time - Start time
- end_time - End time
- message_file_data - Message of relavent file data
- conversation_mode - Conversation mode
- Metadata
- conversation_id - Conversation ID
- ls_provider - Model provider
- ls_model_name - Model ID
- status - Message status
- from_end_user_id - Sending user's ID
- from_account_id - Sending account's ID
- agent_based - Whether agent based
- workflow_run_id - Workflow ID of this runtime
- from_source - Message source
- message_id - Message ID
Moderation Trace Information
用于追踪对话审查
| Moderation | LangFuse Generation/Trace |
|---|---|
| user_id | user_id |
| moderation | name |
| start_time | start_time |
| end_time | end_time |
| inputs | input |
| outputs | output |
| metadata | metadata |
| [moderation] | tags |
| message_id | parent_observation_id |
Message Trace Info
- message_id - Message ID
- user_id - user ID
- workflow_app_log_id workflow_app_log_id
- inputs - Input data for review
- message_data - Meesage Data
- flagged - Whether it is flagged for attention
- action - Specific actions to implement
- preset_response - Preset response
- start_time - Start time of review
- end_time - End time of review
- Metadata
- message_id - Message ID
- action - Specific actions to implement
- preset_response - Preset response
Suggested Question Trace Information
用于追踪建议问题
| Suggested Question | LangFuse Generation/Trace |
|---|---|
| user_id | user_id |
| suggested_question | name |
| start_time | start_time |
| end_time | end_time |
| inputs | input |
| outputs | output |
| metadata | metadata |
| [suggested_question] | tags |
| message_id | parent_observation_id |
Message Trace Info
- message_id - Message ID
- message_data - Message data
- inputs - Input data
- outputs - Output data
- start_time - Start time
- end_time - End time
- total_tokens - Total tokens
- status - Message Status
- error - Error Message
- from_account_id - Sending account ID
- agent_based - Whether agent based
- from_source - Message source
- model_provider - Model provider
- model_id - Model ID
- suggested_question - Suggested question
- level - Status level
- status_message - Message status
- Metadata
- message_id - Message ID
- ls_provider - Model Provider
- ls_model_name - Model ID
- status - Message status
- from_end_user_id - Sending user's ID
- from_account_id - Sending Account ID
- workflow_run_id - Workflow ID of this runtime
- from_source - Message source
Dataset Retrieval Trace信息
用于追踪知识库检索
| Dataset Retrieval | LangFuse Generation/Trace |
|---|---|
| user_id | user_id |
| dataset_retrieval | name |
| start_time | start_time |
| end_time | end_time |
| inputs | input |
| outputs | output |
| metadata | metadata |
| [dataset_retrieval] | tags |
| message_id | parent_observation_id |
Dataset Retrieval Trace Info
- message_id - Message ID
- inputs - Input Meesage
- documents - Document data
- start_time - Start time
- end_time - End time
- message_data - Message data
- Metadata
- message_id - Message ID
- ls_provider - Model Provider
- ls_model_name - Model ID
- status - Model status
- from_end_user_id - Sending user's ID
- from_account_id - Sending account's ID
- agent_based - Whether agent based
- workflow_run_id - Workflow ID of this runtime
- from_source - Message Source
Tool Trace信息
用于追踪工具调用
| Tool | LangFuse Generation/Trace |
|---|---|
| user_id | user_id |
| tool_name | name |
| start_time | start_time |
| end_time | end_time |
| inputs | input |
| outputs | output |
| metadata | metadata |
| ["tool", tool_name] | tags |
| message_id | parent_observation_id |
Tool Trace Info
- message_id - Message ID
- tool_name - Tool Name
- start_time - Start time
- end_time - End time
- tool_inputs - Tool inputs
- tool_outputs - Tool outputs
- message_data - Message data
- error - Error Message,if exist
- inputs - Input of Message
- outputs - Output of Message
- tool_config - Tool config
- time_cost - Time cost
- tool_parameters - Tool Parameters
- file_url - URL of relavent files
- Metadata
- message_id - Message ID
- tool_name - Tool Name
- tool_inputs - Tool inputs
- tool_outputs - Tool outputs
- tool_config - Tool config
- time_cost - Time. cost
- error - Error Message
- tool_parameters - Tool parameters
- message_file_id - Message file ID
- created_by_role - Created by role
- created_user_id - Created user ID
Generate Name Trace信息
用于追踪会话标题生成
| Generate Name | LangFuse Generation/Trace |
|---|---|
| user_id | user_id |
| generate_name | name |
| start_time | start_time |
| end_time | end_time |
| inputs | input |
| outputs | output |
| metadata | metadata |
| [generate_name] | tags |
Generate Name Trace Info
- conversation_id - Conversation ID
- inputs - Input data
- outputs - Generated session name
- start_time - Start time
- end_time - End time
- tenant_id - Tenant ID
- Metadata
- conversation_id - Conversation ID
- tenant_id - Tenant ID