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return JSON output in the chat

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This commit is contained in:
Henry
2023-10-29 10:27:04 +00:00
parent aa2075d60b
commit 8857530f29
6 changed files with 33 additions and 27 deletions
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packages/components/nodes/chains/LLMChain/LLMChain.ts
+15 -14
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@@ -4,7 +4,7 @@ import { LLMChain } from 'langchain/chains'
import { BaseLanguageModel } from 'langchain/base_language'
import { ConsoleCallbackHandler, CustomChainHandler, additionalCallbacks } from '../../../src/handler'
import { BaseOutputParser } from 'langchain/schema/output_parser'
import { injectOutputParser } from '../../outputparsers/OutputParserHelpers'
import { formatResponse, injectOutputParser } from '../../outputparsers/OutputParserHelpers'
import { BaseLLMOutputParser } from 'langchain/schema/output_parser'
import { OutputFixingParser } from 'langchain/output_parsers'
@@ -98,7 +98,7 @@ class LLMChain_Chains implements INode {
verbose: process.env.DEBUG === 'true'
})
const inputVariables = chain.prompt.inputVariables as string[] // ["product"]
const res = await runPrediction(inputVariables, chain, input, promptValues, options, nodeData)
const res = await runPrediction(inputVariables, chain, input, promptValues, options, nodeData, this.outputParser)
// eslint-disable-next-line no-console
console.log('\x1b[92m\x1b[1m\n*****OUTPUT PREDICTION*****\n\x1b[0m\x1b[0m')
// eslint-disable-next-line no-console
@@ -112,7 +112,7 @@ class LLMChain_Chains implements INode {
}
}
async run(nodeData: INodeData, input: string, options: ICommonObject): Promise<string> {
async run(nodeData: INodeData, input: string, options: ICommonObject): Promise<string | object> {
const inputVariables = nodeData.instance.prompt.inputVariables as string[] // ["product"]
const chain = nodeData.instance as LLMChain
let promptValues: ICommonObject | undefined = nodeData.inputs?.prompt.promptValues as ICommonObject
@@ -121,7 +121,7 @@ class LLMChain_Chains implements INode {
this.outputParser = outputParser
}
promptValues = injectOutputParser(this.outputParser, chain, promptValues)
const res = await runPrediction(inputVariables, chain, input, promptValues, options, nodeData)
const res = await runPrediction(inputVariables, chain, input, promptValues, options, nodeData, this.outputParser)
// eslint-disable-next-line no-console
console.log('\x1b[93m\x1b[1m\n*****FINAL RESULT*****\n\x1b[0m\x1b[0m')
// eslint-disable-next-line no-console
@@ -136,7 +136,8 @@ const runPrediction = async (
input: string,
promptValuesRaw: ICommonObject | undefined,
options: ICommonObject,
nodeData: INodeData
nodeData: INodeData,
outputParser: BaseOutputParser
) => {
const loggerHandler = new ConsoleCallbackHandler(options.logger)
const callbacks = await additionalCallbacks(nodeData, options)
@@ -166,12 +167,12 @@ const runPrediction = async (
// All inputVariables have fixed values specified
const options = { ...promptValues }
if (isStreaming) {
const handler = new CustomChainHandler(socketIO, socketIOClientId)
const handler = new CustomChainHandler(socketIO, socketIOClientId, undefined, undefined, outputParser ? true : undefined)
const res = await chain.call(options, [loggerHandler, handler, ...callbacks])
return res?.text
return formatResponse(res?.text)
} else {
const res = await chain.call(options, [loggerHandler, ...callbacks])
return res?.text
return formatResponse(res?.text)
}
} else if (seen.length === 1) {
// If one inputVariable is not specify, use input (user's question) as value
@@ -182,24 +183,24 @@ const runPrediction = async (
[lastValue]: input
}
if (isStreaming) {
const handler = new CustomChainHandler(socketIO, socketIOClientId)
const handler = new CustomChainHandler(socketIO, socketIOClientId, undefined, undefined, outputParser ? true : undefined)
const res = await chain.call(options, [loggerHandler, handler, ...callbacks])
return res?.text
return formatResponse(res?.text)
} else {
const res = await chain.call(options, [loggerHandler, ...callbacks])
return res?.text
return formatResponse(res?.text)
}
} else {
throw new Error(`Please provide Prompt Values for: ${seen.join(', ')}`)
}
} else {
if (isStreaming) {
const handler = new CustomChainHandler(socketIO, socketIOClientId)
const handler = new CustomChainHandler(socketIO, socketIOClientId, undefined, undefined, outputParser ? true : undefined)
const res = await chain.run(input, [loggerHandler, handler, ...callbacks])
return res
return formatResponse(res)
} else {
const res = await chain.run(input, [loggerHandler, ...callbacks])
return res
return formatResponse(res)
}
}
}
packages/components/nodes/outputparsers/OutputParserHelpers.ts
+3 -10
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@@ -6,16 +6,9 @@ import { ChatPromptTemplate, FewShotPromptTemplate, PromptTemplate, SystemMessag
export const CATEGORY = 'Output Parser (Experimental)'
export const applyOutputParser = async (response: string, outputParser: BaseOutputParser | undefined): Promise<string> => {
if (outputParser) {
const parsedResponse = await outputParser.parse(response)
// eslint-disable-next-line no-console
console.log('**** parsedResponse ****', parsedResponse)
if (typeof parsedResponse === 'object') {
return JSON.stringify(parsedResponse)
} else {
return parsedResponse as string
}
export const formatResponse = (response: string | object): string | object => {
if (typeof response === 'object') {
return { json: response }
}
return response
}
packages/components/nodes/vectorstores/Milvus/Milvus_Upsert.ts
+1 -1
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@@ -252,7 +252,7 @@ class MilvusUpsert extends Milvus {
collection_name: this.collectionName
})
if (descIndexResp.status.error_code === ErrorCode.INDEX_NOT_EXIST) {
if (descIndexResp.status.error_code === ErrorCode.IndexNotExist) {
const resp = await this.client.createIndex({
collection_name: this.collectionName,
field_name: this.vectorField,
packages/components/src/handler.ts
+4 -1
View File
@@ -152,13 +152,15 @@ export class CustomChainHandler extends BaseCallbackHandler {
skipK = 0 // Skip streaming for first K numbers of handleLLMStart
returnSourceDocuments = false
cachedResponse = true
isOutputParser = false
constructor(socketIO: Server, socketIOClientId: string, skipK?: number, returnSourceDocuments?: boolean) {
constructor(socketIO: Server, socketIOClientId: string, skipK?: number, returnSourceDocuments?: boolean, isOutputParser?: boolean) {
super()
this.socketIO = socketIO
this.socketIOClientId = socketIOClientId
this.skipK = skipK ?? this.skipK
this.returnSourceDocuments = returnSourceDocuments ?? this.returnSourceDocuments
this.isOutputParser = isOutputParser ?? this.isOutputParser
}
handleLLMStart() {
@@ -171,6 +173,7 @@ export class CustomChainHandler extends BaseCallbackHandler {
if (!this.isLLMStarted) {
this.isLLMStarted = true
this.socketIO.to(this.socketIOClientId).emit('start', token)
if (this.isOutputParser) this.socketIO.to(this.socketIOClientId).emit('token', '```json')
}
this.socketIO.to(this.socketIOClientId).emit('token', token)
}
packages/server/src/index.ts
+4 -1
View File
@@ -980,7 +980,7 @@ export class App {
if (nodeToExecuteData.instance) checkMemorySessionId(nodeToExecuteData.instance, chatId)
const result = isStreamValid
let result = isStreamValid
? await nodeInstance.run(nodeToExecuteData, incomingInput.question, {
chatHistory: incomingInput.history,
socketIO,
@@ -998,7 +998,10 @@ export class App {
analytic: chatflow.analytic
})
result = typeof result === 'string' ? { text: result } : result
logger.debug(`[server]: Finished running ${nodeToExecuteData.label} (${nodeToExecuteData.id})`)
return res.json(result)
} catch (e: any) {
logger.error('[server]: Error:', e)
packages/ui/src/views/chatmessage/ChatMessage.js
+6
View File
@@ -165,6 +165,12 @@ export const ChatMessage = ({ open, chatflowid, isDialog }) => {
])
}
addChatMessage(data.text, 'apiMessage', data.sourceDocuments)
} else if (typeof data === 'object' && data.json) {
const text = '```json' + JSON.stringify(data.json, null, 2)
if (!isChatFlowAvailableToStream) {
setMessages((prevMessages) => [...prevMessages, { message: text, type: 'apiMessage' }])
}
addChatMessage(text, 'apiMessage')
} else {
if (!isChatFlowAvailableToStream) {
setMessages((prevMessages) => [...prevMessages, { message: data, type: 'apiMessage' }])