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Showing content from https://langchain-ai.github.io/langgraphjs/reference/classes/langgraph.StateGraph.html below:

StateGraph | API Reference

Class StateGraph<SD, S, U, N, I, O, C, NodeReturnType> Type Parameters

SD extends SDZod | unknown
S = SD extends SDZod ? StateType<ToStateDefinition<SD>> : SD
U = SD extends SDZod ? UpdateType<ToStateDefinition<SD>> : Partial<S>
N extends string = typeof START
I extends SDZod = SD extends SDZod ? ToStateDefinition<SD> : StateDefinition
O extends SDZod = SD extends SDZod ? ToStateDefinition<SD> : StateDefinition
C extends SDZod = StateDefinition
NodeReturnType = unknown

Hierarchy (view full)

Graph<N, S, U, StateGraphNodeSpec<S, U>, ToStateDefinition<C>>
- StateGraph

Defined in libs/langgraph/dist/graph/state.d.ts:118

Index Constructors Properties Accessors Methods Constructors constructor

new StateGraph<SD, S, U, N, I, O, C, NodeReturnType>(fields, contextSchema?): StateGraph<SD, S, U, N, I, O, C, NodeReturnType>
Type Parameters
- SD extends unknown
- S = SD extends SDZod ? StateType<ToStateDefinition<SD<SD>>> : SD
- U = SD extends SDZod ? UpdateType<ToStateDefinition<SD<SD>>> : Partial<S>
- N extends string = "__start__"
- I extends SDZod = SD extends SDZod ? ToStateDefinition<SD<SD>> : StateDefinition
- O extends SDZod = SD extends SDZod ? ToStateDefinition<SD<SD>> : StateDefinition
- C extends SDZod = StateDefinition
- NodeReturnType = unknown
Returns StateGraph<SD, S, U, N, I, O, C, NodeReturnType>
Overrides Graph.constructor
- Defined in libs/langgraph/dist/graph/state.d.ts:144
new StateGraph<SD, S, U, N, I, O, C, NodeReturnType>(fields, contextSchema?): StateGraph<SD, S, U, N, I, O, C, NodeReturnType>
Type Parameters
- SD extends unknown
- S = SD extends SDZod ? StateType<ToStateDefinition<SD<SD>>> : SD
- U = SD extends SDZod ? UpdateType<ToStateDefinition<SD<SD>>> : Partial<S>
- N extends string = "__start__"
- I extends SDZod = SD extends SDZod ? ToStateDefinition<SD<SD>> : StateDefinition
- O extends SDZod = SD extends SDZod ? ToStateDefinition<SD<SD>> : StateDefinition
- C extends SDZod = StateDefinition
- NodeReturnType = unknown
Returns StateGraph<SD, S, U, N, I, O, C, NodeReturnType>
Overrides Graph<N, S, U, StateGraphNodeSpec<S, U>, ToStateDefinition<C>>.constructor
- Defined in libs/langgraph/dist/graph/state.d.ts:145
new StateGraph<SD, S, U, N, I, O, C, NodeReturnType>(fields, contextSchema?): StateGraph<SD, S, U, N, I, O, C, NodeReturnType>
Type Parameters
- SD extends unknown
- S = SD extends SDZod ? StateType<ToStateDefinition<SD<SD>>> : SD
- U = SD extends SDZod ? UpdateType<ToStateDefinition<SD<SD>>> : Partial<S>
- N extends string = "__start__"
- I extends SDZod = SD extends SDZod ? ToStateDefinition<SD<SD>> : StateDefinition
- O extends SDZod = SD extends SDZod ? ToStateDefinition<SD<SD>> : StateDefinition
- C extends SDZod = StateDefinition
- NodeReturnType = unknown
Returns StateGraph<SD, S, U, N, I, O, C, NodeReturnType>
Overrides Graph<N, S, U, StateGraphNodeSpec<S, U>, ToStateDefinition<C>>.constructor
- Defined in libs/langgraph/dist/graph/state.d.ts:147
new StateGraph<SD, S, U, N, I, O, C, NodeReturnType>(fields, contextSchema?): StateGraph<SD, S, U, N, I, O, C, NodeReturnType>
Type Parameters
- SD extends unknown
- S = SD extends SDZod ? StateType<ToStateDefinition<SD<SD>>> : SD
- U = SD extends SDZod ? UpdateType<ToStateDefinition<SD<SD>>> : Partial<S>
- N extends string = "__start__"
- I extends SDZod = SD extends SDZod ? ToStateDefinition<SD<SD>> : StateDefinition
- O extends SDZod = SD extends SDZod ? ToStateDefinition<SD<SD>> : StateDefinition
- C extends SDZod = StateDefinition
- NodeReturnType = unknown
Parameters
- fields: SD extends InteropZodObject ? SD<SD> | ZodStateGraphArgsWithStateSchema<SD<SD>, I, O> : never
- Optional contextSchema: C | AnnotationRoot<ToStateDefinition<C>>
Returns StateGraph<SD, S, U, N, I, O, C, NodeReturnType>
Overrides Graph<N, S, U, StateGraphNodeSpec<S, U>, ToStateDefinition<C>>.constructor
- Defined in libs/langgraph/dist/graph/state.d.ts:148

Properties branches branches: Record<string, Record<string, Branch<S, N, any>>>

Inherited from Graph.branches

Defined in libs/langgraph/dist/graph/graph.d.ts:43

channels channels: Record<string, BaseChannel<unknown, unknown, unknown>>

Defined in libs/langgraph/dist/graph/state.d.ts:119

compiled

compiled: boolean

Inherited from Graph.compiled

Defined in libs/langgraph/dist/graph/graph.d.ts:45

edges edges: Set<["__start__" | N, "__end__" | N]>

Inherited from Graph.edges

Defined in libs/langgraph/dist/graph/graph.d.ts:42

Optional entryPoint

entryPoint?: string

Inherited from Graph.entryPoint

Defined in libs/langgraph/dist/graph/graph.d.ts:44

nodes nodes: Record<N, StateGraphNodeSpec<S, U>>

Inherited from Graph.nodes

Defined in libs/langgraph/dist/graph/graph.d.ts:41

waitingEdges waitingEdges: Set<[N[], N]>

Defined in libs/langgraph/dist/graph/state.d.ts:120

Accessors allEdges

get allEdges(): Set<[string, string]>
Returns Set<[string, string]>
Overrides Graph.allEdges
- Defined in libs/langgraph/dist/graph/state.d.ts:149

Methods _addSchema

_addSchema(stateDefinition): void
Parameters
- stateDefinition: SDZod
Returns void
- Defined in libs/langgraph/dist/graph/state.d.ts:150

addConditionalEdges

addConditionalEdges(source): this
Returns this
Inherited from Graph.addConditionalEdges
- Defined in libs/langgraph/dist/graph/graph.d.ts:56
addConditionalEdges(source, path, pathMap?): this
Parameters
- source: N
- path: RunnableLike<S, BranchPathReturnValue, LangGraphRunnableConfig<StateType<ToStateDefinition<C>>>>
- Optional pathMap: Record<string, "__end__" | N> | ("__end__" | N)[]
Returns this
Inherited from Graph.addConditionalEdges
- Defined in libs/langgraph/dist/graph/graph.d.ts:57

addEdge

addEdge(startKey, endKey): this
Parameters
- startKey: "__start__" | N | N[]
- endKey: "__end__" | N
Returns this
Overrides Graph.addEdge
- Defined in libs/langgraph/dist/graph/state.d.ts:165

addNode

addNode<K, NodeMap>(nodes): StateGraph<SD, S, U, N | K, I, O, C, MergeReturnType<NodeReturnType, {
    [key in string | number | symbol]: NodeMap[key] extends NodeAction<S, U, C>
        ? U
        : never
}>>
Type Parameters
- K extends string
- NodeMap extends Record<K, NodeAction<S, U, C>>
Returns StateGraph<SD, S, U, N | K, I, O, C, MergeReturnType<NodeReturnType, {
    [key in string | number | symbol]: NodeMap[key] extends NodeAction<S, U, C>
        ? U
        : never
}>>
Overrides Graph.addNode
- Defined in libs/langgraph/dist/graph/state.d.ts:151
addNode<K, NodeInput, NodeOutput>(nodes): StateGraph<SD, S, U, N | K, I, O, C, MergeReturnType<NodeReturnType, {
[key in string]: NodeOutput
}>>
Type Parameters
- K extends string
- NodeInput = S
- NodeOutput = U
Parameters
- nodes: [key: K, action: NodeAction<NodeInput, NodeOutput, C>, options?: StateGraphAddNodeOptions<string>][]
Returns StateGraph<SD, S, U, N | K, I, O, C, MergeReturnType<NodeReturnType, {
[key in string]: NodeOutput
}>>
Overrides Graph.addNode
- Defined in libs/langgraph/dist/graph/state.d.ts:154
addNode<K, NodeInput, NodeOutput>(key, action, options?): StateGraph<SD, S, U, N | K, I, O, C, MergeReturnType<NodeReturnType, {
[key in string]: NodeOutput
}>>
Type Parameters
- K extends string
- NodeInput = S
- NodeOutput = U
Parameters
- key: K
- action: NodeAction<NodeInput, NodeOutput, C>
- Optional options: StateGraphAddNodeOptions<string>
Returns StateGraph<SD, S, U, N | K, I, O, C, MergeReturnType<NodeReturnType, {
[key in string]: NodeOutput
}>>
Overrides Graph.addNode
- Defined in libs/langgraph/dist/graph/state.d.ts:161
addNode<K, NodeInput>(key, action, options?): StateGraph<SD, S, U, N | K, I, O, C, NodeReturnType>
Type Parameters
- K extends string
- NodeInput = S
Parameters
- key: K
- action: NodeAction<NodeInput, U, C>
- Optional options: StateGraphAddNodeOptions<string>
Returns StateGraph<SD, S, U, N | K, I, O, C, NodeReturnType>
Overrides Graph.addNode
- Defined in libs/langgraph/dist/graph/state.d.ts:164

addSequence

addSequence<K, NodeInput, NodeOutput>(nodes): StateGraph<SD, S, U, N | K, I, O, C, MergeReturnType<NodeReturnType, {
[key in string]: NodeOutput
}>>
Type Parameters
- K extends string
- NodeInput = S
- NodeOutput = U
Parameters
- nodes: [key: K, action: NodeAction<NodeInput, NodeOutput, C>, options?: StateGraphAddNodeOptions<string>][]
Returns StateGraph<SD, S, U, N | K, I, O, C, MergeReturnType<NodeReturnType, {
[key in string]: NodeOutput
}>>
- Defined in libs/langgraph/dist/graph/state.d.ts:166
addSequence<K, NodeMap>(nodes): StateGraph<SD, S, U, N | K, I, O, C, MergeReturnType<NodeReturnType, {
    [key in string | number | symbol]: NodeMap[key] extends NodeAction<S, U, C>
        ? U
        : never
}>>
Type Parameters
- K extends string
- NodeMap extends Record<K, NodeAction<S, U, C>>
Returns StateGraph<SD, S, U, N | K, I, O, C, MergeReturnType<NodeReturnType, {
    [key in string | number | symbol]: NodeMap[key] extends NodeAction<S, U, C>
        ? U
        : never
}>>
- Defined in libs/langgraph/dist/graph/state.d.ts:173

compile

compile(__namedParameters?): CompiledStateGraph<{
[K in string | number | symbol]: S[K]
}, {
[K in string | number | symbol]: U[K]
}, N, I, O, C, NodeReturnType>
Parameters
- Optional __namedParameters: { cache?: BaseCache<unknown>; checkpointer?: boolean | BaseCheckpointSaver<number>; description?: string; interruptAfter?: "*" | N[]; interruptBefore?: "*" | N[]; name?: string; store?: BaseStore; }
  - Optional cache?: BaseCache<unknown>
  - Optional checkpointer?: boolean | BaseCheckpointSaver<number>
  - Optional description?: string
  - Optional interruptAfter?: "*" | N[]
  - Optional interruptBefore?: "*" | N[]
  - Optional name?: string
  - Optional store?: BaseStore
Returns CompiledStateGraph<{
[K in string | number | symbol]: S[K]
}, {
[K in string | number | symbol]: U[K]
}, N, I, O, C, NodeReturnType>
Overrides Graph.compile
- Defined in libs/langgraph/dist/graph/state.d.ts:176

setEntryPoint

setEntryPoint(key): this
Returns this
Inherited from Graph.setEntryPoint
- Defined in libs/langgraph/dist/graph/graph.d.ts:61

setFinishPoint

setFinishPoint(key): this
Returns this
Inherited from Graph.setFinishPoint
- Defined in libs/langgraph/dist/graph/graph.d.ts:65

validate

validate(interrupt?): void
Parameters
- Optional interrupt: string[]
Returns void
Inherited from Graph.validate
- Defined in libs/langgraph/dist/graph/graph.d.ts:72

Protected warnIfCompiled

warnIfCompiled(message): void
Parameters
- message: string
Returns void
Inherited from Graph.warnIfCompiled
- Defined in libs/langgraph/dist/graph/graph.d.ts:47

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