Skip to content

fix: add stream log and fix add node options #394

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
killagu merged 2 commits into from
Jan 14, 2026
Merged

fix: add stream log and fix add node options #394

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
002c9a8
fix: add log
akitaSummer Jan 13, 2026
7c15d9b
fix: add options
akitaSummer Jan 14, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
10 changes: 7 additions & 3 deletions core/langchain-decorator/src/decorator/GraphNode.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@ import {

import { IGraphNodeMetadata } from '../model/GraphNodeMetadata';
import { GraphNodeInfoUtil } from '../util/GraphNodeInfoUtil';
import { AnnotationRoot, StateDefinition, UpdateType } from '@langchain/langgraph';
import { AnnotationRoot, Runtime, StateDefinition, StateGraph, UpdateType } from '@langchain/langgraph';
import { ConfigurableModel } from 'langchain/chat_models/universal';
import { ToolNode } from '@langchain/langgraph/prebuilt';
import { BaseChatOpenAI } from '@langchain/openai';
Expand All @@ -26,10 +26,14 @@ export function GraphNode<S extends StateDefinition = StateDefinition>(params: I
};
}

export interface IGraphNode<S extends StateDefinition = StateDefinition, T = any> {
export type StateGraphAddNodeOptions = Parameters<typeof StateGraph['prototype']['addNode']>[2];

export type GraphRuntime<ContextType = Record<string, unknown>, InterruptType = any, WriterType = any> = Runtime<ContextType, InterruptType, WriterType>;

execute(state: AnnotationRoot<S>['State']): Promise<UpdateType<S> & Record<string, any>> | Promise<ToolNode<T>>;
export interface IGraphNode<S extends StateDefinition = StateDefinition, T = any> {

options?: StateGraphAddNodeOptions;
execute(state: AnnotationRoot<S>['State'], options?: GraphRuntime): Promise<UpdateType<S> & Record<string, any>> | Promise<ToolNode<T>>;
build?: (tools: Parameters<ConfigurableModel['bindTools']>['0']) => Promise<ReturnType<ConfigurableModel['bindTools']> | ReturnType<BaseChatOpenAI<any>['bindTools']>>;
}

Expand Down
10 changes: 9 additions & 1 deletion plugin/langchain/lib/graph/CompiledStateGraphObject.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,7 @@ export class CompiledStateGraphObject implements EggObject {
const graph = this._obj as CompiledStateGraph<any, any>;

const originalInvoke = graph.invoke;
const originalStream = graph.stream;
const langGraphTraceObj = await EggContainerFactory.getOrCreateEggObjectFromName('langGraphTracer');
const tracer = langGraphTraceObj.obj as LangGraphTracer;
tracer.setName(this.graphName);
Expand All @@ -47,6 +48,13 @@ export class CompiledStateGraphObject implements EggObject {
return await originalInvoke.call(graph, input, config);
};

graph.stream = async (input: any, config?: any) => {
if (config?.tags?.includes('trace-log')) {
config.callbacks = [ tracer, ...(config?.callbacks || []) ];
}
return await originalStream.call(graph, input, config) as any;
};

this.status = EggObjectStatus.READY;
}

Expand Down Expand Up @@ -87,7 +95,7 @@ export class CompiledStateGraphObject implements EggObject {
if (TeggToolNode.prototype.isPrototypeOf(nodeObj)) {
graphObj.addNode(nodeMetadata.nodeName, (nodeObj as unknown as TeggToolNode).toolNode);
} else {
graphObj.addNode(nodeMetadata.nodeName, nodeObj.execute.bind(nodeObj));
graphObj.addNode(nodeMetadata.nodeName, nodeObj.execute.bind(nodeObj), nodeObj.options);
}
}
}
Expand Down
1 change: 1 addition & 0 deletions plugin/langchain/test/fixtures/apps/langchain/app/modules/bar/controller/AppController.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -51,6 +51,7 @@ export class AppController {
configurable: {
thread_id: '1',
},
tags: [ 'trace-log' ],
});

return {
Expand Down
10 changes: 7 additions & 3 deletions plugin/langchain/test/fixtures/apps/langchain/app/modules/bar/service/Graph.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
import { AccessLevel, SingletonProto, ToolArgs, ToolArgsSchema } from '@eggjs/tegg';
import { Graph, GraphEdge, IGraphEdge, AbstractStateGraph, GraphNode, IGraphNode, GraphStateType, GraphTool, IGraphTool, TeggToolNode } from '@eggjs/tegg-langchain-decorator';
import { AccessLevel, Inject, Logger, SingletonProto, ToolArgs, ToolArgsSchema } from '@eggjs/tegg';
import { Graph, GraphEdge, IGraphEdge, AbstractStateGraph, GraphNode, IGraphNode, GraphStateType, GraphTool, IGraphTool, TeggToolNode, GraphRuntime } from '@eggjs/tegg-langchain-decorator';
import { Annotation, MemorySaver } from '@langchain/langgraph';
// import { AIMessage, BaseMessage, ToolMessage } from '@langchain/core/messages';
import * as z from 'zod/v4';
Expand Down Expand Up @@ -54,7 +54,11 @@ export class FooTool implements IGraphTool {
mcpServers: [ 'bar' ],
})
export class FooNode implements IGraphNode<fooAnnotationStateDefinitionType> {
async execute(state: GraphStateType<fooAnnotationStateDefinitionType>) {
@Inject()
logger: Logger;

async execute(state: GraphStateType<fooAnnotationStateDefinitionType>, options: GraphRuntime) {
this.logger.info('Executing FooNode thread_id is', options.configurable?.thread_id);
console.log('response: ', state.messages);
const messages = state.messages;
const lastMessage = messages[messages.length - 1];
Expand Down
3 changes: 3 additions & 0 deletions plugin/langchain/test/llm.test.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -72,9 +72,12 @@ describe('plugin/langchain/test/llm.test.ts', () => {
});

it('should graph work', async () => {
app.mockLog();
await app.httpRequest()
.get('/llm/graph')
.expect(200, { value: 'hello graph toolhello world' });
app.expectLog(/agent_run/);
app.expectLog(/Executing FooNode thread_id is 1/);
});
}
});
Loading