add logs to component chains/agents

packages/components/nodes/chains/ConversationalRetrievalQAChain/ConversationalRetrievalQAChain.ts

@@ -1,10 +1,11 @@
 import { BaseLanguageModel } from 'langchain/base_language'
 import { ICommonObject, IMessage, INode, INodeData, INodeParams } from '../../../src/Interface'
-import { CustomChainHandler, getBaseClasses } from '../../../src/utils'
+import { getBaseClasses } from '../../../src/utils'
 import { ConversationalRetrievalQAChain } from 'langchain/chains'
 import { AIMessage, BaseRetriever, HumanMessage } from 'langchain/schema'
 import { BaseChatMemory, BufferMemory, ChatMessageHistory } from 'langchain/memory'
 import { PromptTemplate } from 'langchain/prompts'
+import { ConsoleCallbackHandler, CustomChainHandler } from '../../../src/handler'
 
 const default_qa_template = `Use the following pieces of context to answer the question at the end, in its original language. If you don't know the answer, just say that you don't know in its original language, don't try to make up an answer.
 
@@ -175,13 +176,15 @@ class ConversationalRetrievalQAChain_Chains implements INode {
             chain.memory = memory
         }
 
+        const loggerHandler = new ConsoleCallbackHandler(options.logger)
+
         if (options.socketIO && options.socketIOClientId) {
             const handler = new CustomChainHandler(options.socketIO, options.socketIOClientId, undefined, returnSourceDocuments)
-            const res = await chain.call(obj, [handler])
+            const res = await chain.call(obj, [loggerHandler, handler])
             if (res.text && res.sourceDocuments) return res
             return res?.text
         } else {
-            const res = await chain.call(obj)
+            const res = await chain.call(obj, [loggerHandler])
             if (res.text && res.sourceDocuments) return res
             return res?.text
         }