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Title: GraphCallbackHandler | langgraph | LangChain Reference

Open Graph Title: GraphCallbackHandler | langgraph

X Title: GraphCallbackHandler | langgraph

Description: Python API reference for callbacks.GraphCallbackHandler in langgraph. Part of the LangChain ecosystem.

Open Graph Description: Python API reference for callbacks.GraphCallbackHandler in langgraph. Part of the LangChain ecosystem.

X Description: Python API reference for callbacks.GraphCallbackHandler in langgraph. Part of the LangChain ecosystem.

Opengraph URL: https://reference.langchain.com/python/langgraph/callbacks/GraphCallbackHandler

direct link

Domain: reference.langchain.com

og:imagehttps://reference.langchain.com/og/python/langgraph/callbacks/GraphCallbackHandler
og:image:width1200
og:image:height630
og:image:altGraphCallbackHandler | langgraph
og:typearticle
twitter:cardsummary_large_image
twitter:imagehttps://reference.langchain.com/og/python/langgraph/callbacks/GraphCallbackHandler

Links:

LangChain Reference home pagehttps://reference.langchain.com/
GitHubhttps://github.com/langchain-ai
Main Docshttps://docs.langchain.com/oss/python/langgraph
Deep Agentshttps://reference.langchain.com/python/deepagents
LangChainhttps://reference.langchain.com/python/langchain/overview
LangGraphhttps://reference.langchain.com/python/langgraph/overview
Integrationshttps://reference.langchain.com/python/integrations/overview
LangSmithhttps://reference.langchain.com/python/langsmith
Overviewhttps://reference.langchain.com/python/langgraph/overview
Overviewhttps://reference.langchain.com/python/langgraph
Graphshttps://reference.langchain.com/python/langgraph/graphs
Functional APIhttps://reference.langchain.com/python/langgraph/func
Pregelhttps://reference.langchain.com/python/langgraph/pregel
Checkpointinghttps://reference.langchain.com/python/langgraph/checkpoints
Storagehttps://reference.langchain.com/python/langgraph/store
Cachinghttps://reference.langchain.com/python/langgraph/cache
Typeshttps://reference.langchain.com/python/langgraph/types
Runtimehttps://reference.langchain.com/python/langgraph/runtime
Confighttps://reference.langchain.com/python/langgraph/config
Errorshttps://reference.langchain.com/python/langgraph/errors
Constantshttps://reference.langchain.com/python/langgraph/constants
Channelshttps://reference.langchain.com/python/langgraph/channels
Agentshttps://reference.langchain.com/python/langgraph/agents
LangGraph Checkpointhttps://reference.langchain.com/python/langgraph.checkpoint
LangGraph Storehttps://reference.langchain.com/python/langgraph.store
Checkpoint Postgreshttps://reference.langchain.com/python/langgraph.checkpoint.postgres
Store Postgreshttps://reference.langchain.com/python/langgraph.store.postgres
Checkpoint SQLitehttps://reference.langchain.com/python/langgraph.checkpoint.sqlite
LangGraph Prebuilthttps://reference.langchain.com/python/langgraph.prebuilt
LangGraph CLIhttps://reference.langchain.com/python/langgraph-cli
LangGraph SDKhttps://reference.langchain.com/python/langgraph-sdk
LangGraph Supervisorhttps://reference.langchain.com/python/langgraph-supervisor
LangGraph Swarmhttps://reference.langchain.com/python/langgraph-swarm
https://chat.langchain.com/
Overviewhttps://reference.langchain.com/python/langgraph
Graphshttps://reference.langchain.com/python/langgraph/graphs
Functional APIhttps://reference.langchain.com/python/langgraph/func
Pregelhttps://reference.langchain.com/python/langgraph/pregel
Checkpointinghttps://reference.langchain.com/python/langgraph/checkpoints
Storagehttps://reference.langchain.com/python/langgraph/store
Cachinghttps://reference.langchain.com/python/langgraph/cache
Typeshttps://reference.langchain.com/python/langgraph/types
Runtimehttps://reference.langchain.com/python/langgraph/runtime
Confighttps://reference.langchain.com/python/langgraph/config
Errorshttps://reference.langchain.com/python/langgraph/errors
Constantshttps://reference.langchain.com/python/langgraph/constants
Channelshttps://reference.langchain.com/python/langgraph/channels
Agentshttps://reference.langchain.com/python/langgraph/agents
LangGraph Checkpointhttps://reference.langchain.com/python/langgraph.checkpoint
LangGraph Storehttps://reference.langchain.com/python/langgraph.store
Checkpoint Postgreshttps://reference.langchain.com/python/langgraph.checkpoint.postgres
Store Postgreshttps://reference.langchain.com/python/langgraph.store.postgres
Checkpoint SQLitehttps://reference.langchain.com/python/langgraph.checkpoint.sqlite
LangGraph Prebuilthttps://reference.langchain.com/python/langgraph.prebuilt
LangGraph CLIhttps://reference.langchain.com/python/langgraph-cli
LangGraph SDKhttps://reference.langchain.com/python/langgraph-sdk
LangGraph Supervisorhttps://reference.langchain.com/python/langgraph-supervisor
LangGraph Swarmhttps://reference.langchain.com/python/langgraph-swarm
langgraphhttps://reference.langchain.com/python/langgraph
callbackshttps://reference.langchain.com/python/langgraph/callbacks
BaseCallbackHandlerhttps://reference.langchain.com/python/langchain-core/callbacks/base/BaseCallbackHandler
BaseCallbackHandlerhttps://reference.langchain.com/python/langchain-core/callbacks/base/BaseCallbackHandler
Araise_errorhttps://reference.langchain.com/python/langchain-core/callbacks/base/BaseCallbackHandler/raise_error
Arun_inlinehttps://reference.langchain.com/python/langchain-core/callbacks/base/BaseCallbackHandler/run_inline
Aignore_llmhttps://reference.langchain.com/python/langchain-core/callbacks/base/BaseCallbackHandler/ignore_llm
Aignore_retryhttps://reference.langchain.com/python/langchain-core/callbacks/base/BaseCallbackHandler/ignore_retry
Ahttps://reference.langchain.com/python/langchain-core/callbacks/base/BaseCallbackHandler/ignore_chain
View source on GitHubhttps://github.com/langchain-ai/langgraph/blob/5bd231cbfd913e05ebc662f519eb9a655bc766df/libs/langgraph/langgraph/callbacks.py#L87
Aignore_agenthttps://reference.langchain.com/python/langchain-core/callbacks/base/BaseCallbackHandler/ignore_agent
Aignore_retrieverhttps://reference.langchain.com/python/langchain-core/callbacks/base/BaseCallbackHandler/ignore_retriever
Aignore_chat_modelhttps://reference.langchain.com/python/langchain-core/callbacks/base/BaseCallbackHandler/ignore_chat_model
Aignore_custom_eventhttps://reference.langchain.com/python/langchain-core/callbacks/base/BaseCallbackHandler/ignore_custom_event
LLMManagerMixinhttps://reference.langchain.com/python/langchain-core/callbacks/base/LLMManagerMixin
Mon_llm_new_tokenhttps://reference.langchain.com/python/langchain-core/callbacks/base/LLMManagerMixin/on_llm_new_token
Mon_llm_endhttps://reference.langchain.com/python/langchain-core/callbacks/base/LLMManagerMixin/on_llm_end
Mon_llm_errorhttps://reference.langchain.com/python/langchain-core/callbacks/base/LLMManagerMixin/on_llm_error
Mon_stream_eventhttps://reference.langchain.com/python/langchain-core/callbacks/base/LLMManagerMixin/on_stream_event
ChainManagerMixinhttps://reference.langchain.com/python/langchain-core/callbacks/base/ChainManagerMixin
Mon_chain_endhttps://reference.langchain.com/python/langchain-core/callbacks/base/ChainManagerMixin/on_chain_end
Mon_chain_errorhttps://reference.langchain.com/python/langchain-core/callbacks/base/ChainManagerMixin/on_chain_error
Mon_agent_actionhttps://reference.langchain.com/python/langchain-core/callbacks/base/ChainManagerMixin/on_agent_action
Mon_agent_finishhttps://reference.langchain.com/python/langchain-core/callbacks/base/ChainManagerMixin/on_agent_finish
ToolManagerMixinhttps://reference.langchain.com/python/langchain-core/callbacks/base/ToolManagerMixin
Mon_tool_endhttps://reference.langchain.com/python/langchain-core/callbacks/base/ToolManagerMixin/on_tool_end
Mon_tool_errorhttps://reference.langchain.com/python/langchain-core/callbacks/base/ToolManagerMixin/on_tool_error
RetrieverManagerMixinhttps://reference.langchain.com/python/langchain-core/callbacks/base/RetrieverManagerMixin
Mon_retriever_errorhttps://reference.langchain.com/python/langchain-core/callbacks/base/RetrieverManagerMixin/on_retriever_error
Mon_retriever_endhttps://reference.langchain.com/python/langchain-core/callbacks/base/RetrieverManagerMixin/on_retriever_end
CallbackManagerMixinhttps://reference.langchain.com/python/langchain-core/callbacks/base/CallbackManagerMixin
Mon_llm_starthttps://reference.langchain.com/python/langchain-core/callbacks/base/CallbackManagerMixin/on_llm_start
Mon_chat_model_starthttps://reference.langchain.com/python/langchain-core/callbacks/base/CallbackManagerMixin/on_chat_model_start
Mon_retriever_starthttps://reference.langchain.com/python/langchain-core/callbacks/base/CallbackManagerMixin/on_retriever_start
Mon_chain_starthttps://reference.langchain.com/python/langchain-core/callbacks/base/CallbackManagerMixin/on_chain_start
Mon_tool_starthttps://reference.langchain.com/python/langchain-core/callbacks/base/CallbackManagerMixin/on_tool_start
RunManagerMixinhttps://reference.langchain.com/python/langchain-core/callbacks/base/RunManagerMixin
Mon_texthttps://reference.langchain.com/python/langchain-core/callbacks/base/RunManagerMixin/on_text
Mon_retryhttps://reference.langchain.com/python/langchain-core/callbacks/base/RunManagerMixin/on_retry
Mon_custom_eventhttps://reference.langchain.com/python/langchain-core/callbacks/base/RunManagerMixin/on_custom_event
methodon_interruptRun when graph execution pauses due to one or more interrupts.https://reference.langchain.com/python/langgraph/callbacks/GraphCallbackHandler/on_interrupt
methodon_resumeRun when graph execution resumes from a persisted checkpoint.https://reference.langchain.com/python/langgraph/callbacks/GraphCallbackHandler/on_resume

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