mirror of
https://github.com/labring/FastGPT.git
synced 2025-08-06 15:36:21 +00:00
feat: openapi v2 chat
This commit is contained in:
@@ -1,192 +0,0 @@
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import type { NextApiRequest, NextApiResponse } from 'next';
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import { connectToDatabase } from '@/service/mongo';
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import { authChat } from '@/service/utils/auth';
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import { modelServiceToolMap } from '@/service/utils/chat';
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import { ChatItemType } from '@/types/chat';
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import { jsonRes } from '@/service/response';
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import { ChatModelMap } from '@/constants/model';
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import { pushChatBill } from '@/service/events/pushBill';
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import { resStreamResponse } from '@/service/utils/chat';
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import { appKbSearch } from '../openapi/kb/appKbSearch';
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import { ChatRoleEnum, QUOTE_LEN_HEADER, GUIDE_PROMPT_HEADER } from '@/constants/chat';
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import { BillTypeEnum } from '@/constants/user';
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import { sensitiveCheck } from '../openapi/text/sensitiveCheck';
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import { NEW_CHATID_HEADER } from '@/constants/chat';
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import { saveChat } from './saveChat';
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import { Types } from 'mongoose';
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/* 发送提示词 */
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export default async function handler(req: NextApiRequest, res: NextApiResponse) {
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res.on('close', () => {
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res.end();
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});
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res.on('error', () => {
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console.log('error: ', 'request error');
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res.end();
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});
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try {
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const { chatId, prompt, modelId } = req.body as {
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prompt: [ChatItemType, ChatItemType];
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modelId: string;
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chatId?: string;
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};
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if (!modelId || !prompt || prompt.length !== 2) {
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throw new Error('Chat 缺少参数');
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}
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await connectToDatabase();
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let startTime = Date.now();
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const { model, showModelDetail, content, userOpenAiKey, systemAuthKey, userId } =
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await authChat({
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modelId,
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chatId,
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req
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});
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const modelConstantsData = ChatModelMap[model.chat.chatModel];
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const {
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rawSearch = [],
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userSystemPrompt = [],
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quotePrompt = []
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} = await (async () => {
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// 使用了知识库搜索
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if (model.chat.relatedKbs?.length > 0) {
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const { rawSearch, userSystemPrompt, quotePrompt } = await appKbSearch({
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model,
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userId,
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fixedQuote: content[content.length - 1]?.quote || [],
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prompt: prompt[0],
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similarity: model.chat.searchSimilarity,
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limit: model.chat.searchLimit
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});
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return {
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rawSearch: rawSearch,
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userSystemPrompt: userSystemPrompt ? [userSystemPrompt] : [],
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quotePrompt: [quotePrompt]
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};
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}
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if (model.chat.systemPrompt) {
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return {
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userSystemPrompt: [
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{
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obj: ChatRoleEnum.System,
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value: model.chat.systemPrompt
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}
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]
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};
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}
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return {};
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})();
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// get conversationId. create a newId if it is null
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const conversationId = chatId || String(new Types.ObjectId());
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!chatId && res.setHeader(NEW_CHATID_HEADER, conversationId);
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if (showModelDetail) {
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userSystemPrompt[0] &&
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res.setHeader(GUIDE_PROMPT_HEADER, encodeURIComponent(userSystemPrompt[0].value));
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res.setHeader(QUOTE_LEN_HEADER, rawSearch.length);
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}
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// search result is empty
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if (model.chat.relatedKbs?.length > 0 && !quotePrompt[0]?.value && model.chat.searchEmptyText) {
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const response = model.chat.searchEmptyText;
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await saveChat({
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chatId,
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newChatId: conversationId,
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modelId,
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prompts: [
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prompt[0],
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{
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...prompt[1],
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quote: [],
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value: response
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}
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],
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userId
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});
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return res.end(response);
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}
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// 读取对话内容
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const prompts = [...quotePrompt, ...content, ...userSystemPrompt, prompt[0]];
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// content check
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await sensitiveCheck({
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input: [...quotePrompt, ...userSystemPrompt, prompt[0]].map((item) => item.value).join('')
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});
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// 计算温度
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const temperature = (modelConstantsData.maxTemperature * (model.chat.temperature / 10)).toFixed(
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2
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);
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// 发出 chat 请求
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const { streamResponse, responseMessages } = await modelServiceToolMap[
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model.chat.chatModel
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].chatCompletion({
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apiKey: userOpenAiKey || systemAuthKey,
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temperature: +temperature,
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messages: prompts,
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stream: true,
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res,
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chatId: conversationId
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});
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console.log('api response time:', `${(Date.now() - startTime) / 1000}s`);
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if (res.closed) return res.end();
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try {
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const { totalTokens, finishMessages, responseContent } = await resStreamResponse({
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model: model.chat.chatModel,
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res,
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chatResponse: streamResponse,
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prompts: responseMessages
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});
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// save chat
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await saveChat({
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chatId,
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newChatId: conversationId,
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modelId,
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prompts: [
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prompt[0],
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{
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...prompt[1],
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value: responseContent,
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quote: showModelDetail ? rawSearch : [],
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systemPrompt: showModelDetail ? userSystemPrompt[0]?.value : ''
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}
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],
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userId
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});
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res.end();
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// 只有使用平台的 key 才计费
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pushChatBill({
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isPay: !userOpenAiKey,
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chatModel: model.chat.chatModel,
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userId,
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chatId: conversationId,
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textLen: finishMessages.map((item) => item.value).join('').length,
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tokens: totalTokens,
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type: BillTypeEnum.chat
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});
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} catch (error) {
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res.end();
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console.log('error,结束', error);
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}
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} catch (err: any) {
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res.status(500);
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jsonRes(res, {
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code: 500,
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error: err
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});
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}
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}
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@@ -20,31 +20,32 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
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await connectToDatabase();
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let model: ModelSchema;
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// 没有 modelId 时,直接获取用户的第一个id
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if (!modelId) {
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const myModel = await Model.findOne({ userId });
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if (!myModel) {
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const { _id } = await Model.create({
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name: '应用1',
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userId
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});
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model = (await Model.findById(_id)) as ModelSchema;
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const model = await (async () => {
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if (!modelId) {
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const myModel = await Model.findOne({ userId });
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if (!myModel) {
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const { _id } = await Model.create({
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name: '应用1',
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userId
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});
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return (await Model.findById(_id)) as ModelSchema;
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} else {
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return myModel;
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}
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} else {
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model = myModel;
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// 校验使用权限
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const authRes = await authModel({
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modelId,
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userId,
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authUser: false,
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authOwner: false
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});
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return authRes.model;
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}
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modelId = model._id;
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} else {
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// 校验使用权限
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const authRes = await authModel({
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modelId,
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userId,
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authUser: false,
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authOwner: false
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});
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model = authRes.model;
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}
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})();
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modelId = modelId || model._id;
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// 历史记录
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let history: ChatItemType[] = [];
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@@ -86,6 +87,8 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
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]);
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}
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const isOwner = String(model.userId) === userId;
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jsonRes<InitChatResponse>(res, {
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data: {
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chatId: chatId || '',
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@@ -94,9 +97,10 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
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name: model.name,
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avatar: model.avatar,
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intro: model.intro,
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canUse: model.share.isShare || String(model.userId) === userId
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canUse: model.share.isShare || isOwner
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},
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chatModel: model.chat.chatModel,
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systemPrompt: isOwner ? model.chat.systemPrompt : '',
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history
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}
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});
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@@ -4,10 +4,9 @@ import { ChatItemType } from '@/types/chat';
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import { connectToDatabase, Chat, Model } from '@/service/mongo';
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import { authModel } from '@/service/utils/auth';
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import { authUser } from '@/service/utils/auth';
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import mongoose from 'mongoose';
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import { Types } from 'mongoose';
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type Props = {
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newChatId?: string;
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chatId?: string;
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modelId: string;
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prompts: [ChatItemType, ChatItemType];
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@@ -16,7 +15,7 @@ type Props = {
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/* 聊天内容存存储 */
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export default async function handler(req: NextApiRequest, res: NextApiResponse) {
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try {
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const { chatId, modelId, prompts, newChatId } = req.body as Props;
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const { chatId, modelId, prompts } = req.body as Props;
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if (!prompts) {
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throw new Error('缺少参数');
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@@ -24,16 +23,15 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
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const { userId } = await authUser({ req, authToken: true });
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const nId = await saveChat({
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const response = await saveChat({
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chatId,
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modelId,
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prompts,
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newChatId,
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userId
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});
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jsonRes(res, {
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data: nId
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data: response
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});
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} catch (err) {
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jsonRes(res, {
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@@ -44,58 +42,54 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
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}
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export async function saveChat({
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chatId,
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newChatId,
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chatId,
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modelId,
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prompts,
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userId
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}: Props & { userId: string }) {
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}: Props & { newChatId?: Types.ObjectId; userId: string }) {
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await connectToDatabase();
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const { model } = await authModel({ modelId, userId, authOwner: false });
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const content = prompts.map((item) => ({
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_id: item._id ? new mongoose.Types.ObjectId(item._id) : undefined,
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_id: item._id,
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obj: item.obj,
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value: item.value,
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systemPrompt: item.systemPrompt,
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systemPrompt: item.systemPrompt || '',
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quote: item.quote || []
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}));
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const [id] = await Promise.all([
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...(chatId // update chat
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? [
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Chat.findByIdAndUpdate(chatId, {
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$push: {
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content: {
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$each: content
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}
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},
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title: content[0].value.slice(0, 20),
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latestChat: content[1].value,
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updateTime: new Date()
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}).then(() => '')
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]
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: [
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Chat.create({
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_id: newChatId ? new mongoose.Types.ObjectId(newChatId) : undefined,
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userId,
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modelId,
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content,
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title: content[0].value.slice(0, 20),
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latestChat: content[1].value
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}).then((res) => res._id)
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]),
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// update model
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...(String(model.userId) === userId
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? [
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Model.findByIdAndUpdate(modelId, {
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updateTime: new Date()
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})
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]
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: [])
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]);
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if (String(model.userId) === userId) {
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Model.findByIdAndUpdate(modelId, {
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updateTime: new Date()
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});
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}
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const response = await (chatId
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? Chat.findByIdAndUpdate(chatId, {
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$push: {
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content: {
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$each: content
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}
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},
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title: content[0].value.slice(0, 20),
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latestChat: content[1].value,
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updateTime: new Date()
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}).then(() => ({
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newChatId: ''
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}))
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: Chat.create({
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_id: newChatId,
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userId,
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modelId,
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content,
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title: content[0].value.slice(0, 20),
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latestChat: content[1].value
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}).then((res) => ({
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newChatId: String(res._id)
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})));
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return {
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id
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...response
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};
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}
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|
@@ -1,149 +0,0 @@
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import type { NextApiRequest, NextApiResponse } from 'next';
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import { connectToDatabase } from '@/service/mongo';
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import { authShareChat } from '@/service/utils/auth';
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import { modelServiceToolMap } from '@/service/utils/chat';
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import { ChatItemSimpleType } from '@/types/chat';
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import { jsonRes } from '@/service/response';
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import { ChatModelMap } from '@/constants/model';
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import { pushChatBill, updateShareChatBill } from '@/service/events/pushBill';
|
||||
import { resStreamResponse } from '@/service/utils/chat';
|
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import { ChatRoleEnum } from '@/constants/chat';
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||||
import { BillTypeEnum } from '@/constants/user';
|
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import { sensitiveCheck } from '../../openapi/text/sensitiveCheck';
|
||||
import { appKbSearch } from '../../openapi/kb/appKbSearch';
|
||||
|
||||
/* 发送提示词 */
|
||||
export default async function handler(req: NextApiRequest, res: NextApiResponse) {
|
||||
res.on('error', () => {
|
||||
console.log('error: ', 'request error');
|
||||
res.end();
|
||||
});
|
||||
|
||||
try {
|
||||
const { shareId, password, historyId, prompts } = req.body as {
|
||||
prompts: ChatItemSimpleType[];
|
||||
password: string;
|
||||
shareId: string;
|
||||
historyId: string;
|
||||
};
|
||||
|
||||
if (!historyId || !prompts) {
|
||||
throw new Error('分享链接无效');
|
||||
}
|
||||
|
||||
await connectToDatabase();
|
||||
let startTime = Date.now();
|
||||
|
||||
const { model, userOpenAiKey, systemAuthKey, userId } = await authShareChat({
|
||||
shareId,
|
||||
password
|
||||
});
|
||||
|
||||
const modelConstantsData = ChatModelMap[model.chat.chatModel];
|
||||
const prompt = prompts[prompts.length - 1];
|
||||
|
||||
const {
|
||||
rawSearch = [],
|
||||
userSystemPrompt = [],
|
||||
quotePrompt = []
|
||||
} = await (async () => {
|
||||
// 使用了知识库搜索
|
||||
if (model.chat.relatedKbs?.length > 0) {
|
||||
const { rawSearch, userSystemPrompt, quotePrompt } = await appKbSearch({
|
||||
model,
|
||||
userId,
|
||||
fixedQuote: [],
|
||||
prompt: prompt,
|
||||
similarity: model.chat.searchSimilarity,
|
||||
limit: model.chat.searchLimit
|
||||
});
|
||||
|
||||
return {
|
||||
rawSearch: rawSearch,
|
||||
userSystemPrompt: userSystemPrompt ? [userSystemPrompt] : [],
|
||||
quotePrompt: [quotePrompt]
|
||||
};
|
||||
}
|
||||
if (model.chat.systemPrompt) {
|
||||
return {
|
||||
userSystemPrompt: [
|
||||
{
|
||||
obj: ChatRoleEnum.System,
|
||||
value: model.chat.systemPrompt
|
||||
}
|
||||
]
|
||||
};
|
||||
}
|
||||
return {};
|
||||
})();
|
||||
|
||||
// search result is empty
|
||||
if (model.chat.relatedKbs?.length > 0 && !quotePrompt[0]?.value && model.chat.searchEmptyText) {
|
||||
const response = model.chat.searchEmptyText;
|
||||
return res.end(response);
|
||||
}
|
||||
|
||||
// 读取对话内容
|
||||
const completePrompts = [...quotePrompt, ...prompts.slice(0, -1), ...userSystemPrompt, prompt];
|
||||
|
||||
// content check
|
||||
await sensitiveCheck({
|
||||
input: [...quotePrompt, ...userSystemPrompt, prompt].map((item) => item.value).join('')
|
||||
});
|
||||
|
||||
// 计算温度
|
||||
const temperature = (modelConstantsData.maxTemperature * (model.chat.temperature / 10)).toFixed(
|
||||
2
|
||||
);
|
||||
|
||||
// 发出请求
|
||||
const { streamResponse, responseMessages } = await modelServiceToolMap[
|
||||
model.chat.chatModel
|
||||
].chatCompletion({
|
||||
apiKey: userOpenAiKey || systemAuthKey,
|
||||
temperature: +temperature,
|
||||
messages: completePrompts,
|
||||
stream: true,
|
||||
res,
|
||||
chatId: historyId
|
||||
});
|
||||
|
||||
console.log('api response time:', `${(Date.now() - startTime) / 1000}s`);
|
||||
|
||||
if (res.closed) return res.end();
|
||||
|
||||
try {
|
||||
const { totalTokens, finishMessages } = await resStreamResponse({
|
||||
model: model.chat.chatModel,
|
||||
res,
|
||||
chatResponse: streamResponse,
|
||||
prompts: responseMessages
|
||||
});
|
||||
|
||||
res.end();
|
||||
|
||||
/* bill */
|
||||
pushChatBill({
|
||||
isPay: !userOpenAiKey,
|
||||
chatModel: model.chat.chatModel,
|
||||
userId,
|
||||
textLen: finishMessages.map((item) => item.value).join('').length,
|
||||
tokens: totalTokens,
|
||||
type: BillTypeEnum.chat
|
||||
});
|
||||
updateShareChatBill({
|
||||
shareId,
|
||||
tokens: totalTokens
|
||||
});
|
||||
} catch (error) {
|
||||
res.end();
|
||||
console.log('error,结束', error);
|
||||
}
|
||||
} catch (err: any) {
|
||||
res.status(500);
|
||||
jsonRes(res, {
|
||||
code: 500,
|
||||
error: err
|
||||
});
|
||||
}
|
||||
}
|
Reference in New Issue
Block a user