| layout | default |
|---|---|
| title | LangGraph |
| nav_order | 12 |
| has_children | true |
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LangGraphView Repo helps you build complex stateful applications, like chatbots or agents, using a graph-based approach. You define your application's logic as a series of steps (Nodes) connected by transitions (Edges) in a Graph. The system manages the application's shared state using Channels and executes the graph step-by-step with its Pregel engine, handling things like branching, interruptions, and saving progress (Checkpointing).
flowchart TD
A0["Pregel Execution Engine"]
A1["Graph / StateGraph"]
A2["Channels"]
A3["Nodes (PregelNode)"]
A4["Checkpointer (BaseCheckpointSaver)"]
A5["Control Flow Primitives (Branch, Send, Interrupt)"]
A0 -- "Executes" --> A1
A1 -- "Contains" --> A3
A3 -- "Updates State Via" --> A2
A0 -- "Manages State Via" --> A2
A0 -- "Uses Checkpointer" --> A4
A1 -- "Defines Control Flow With" --> A5
A5 -- "Directs Execution Of" --> A0
A4 -- "Saves State Of" --> A2