ChatEmail-和邮件对话😊😃😎

前言

ChatEmail基于🦜️🔗LangchainJS 和 ChatFiles 构建，实现了和邮件对话功能😎，可用于提取邮件摘要、翻译邮件、分析邮件类型、生成邮件回复等。

GitHub地址:🔗https://github.com/kongpf8848/ChatEmail

在线体验地址: 👉https://chatemail.kongpf8848.com

流程

截图

使用

😊初始化向量数据库(Supabase)

• 注册Supabase账户

  🔗 https://supabase.com

• 创建一个新项目

  获取SUPABASE_API_URL和SUPABASE_API_KEY

  

• 创建数据库表

  在数据库中运行以下语句:

    -- Enable the pgvector extension to work with embedding vectors
    create extension vector;
    
    -- Create a table to store your documents
    create table documents (
      id bigserial primary key,
      content text, -- corresponds to Document.pageContent
      metadata jsonb, -- corresponds to Document.metadata
      embedding vector(1536) -- 1536 works for OpenAI embeddings, change if needed
    );
    
    -- Create a function to search for documents
    create function match_documents (
      query_embedding vector(1536),
      match_count int DEFAULT null,
      filter jsonb DEFAULT '{}'
    ) returns table (
      id bigint,
      content text,
      metadata jsonb,
      similarity float
    )
    language plpgsql
    as $$
    #variable_conflict use_column
    begin
      return query
      select
        id,
        content,
        metadata,
        1 - (documents.embedding <=> query_embedding) as similarity
      from documents
      where metadata @> filter
      order by documents.embedding <=> query_embedding
      limit match_count;
    end;
    $$;
  

😏设置环境变量

1. 在代码根目录生成.env文件

cp .env.sample .env

2. 设置.env文件中的环境变量

名称	描述	默认值
NEXT_PUBLIC_CHAT_FILES_UPLOAD_PATH	上传文件的存放路径	public/uploads
NEXT_PUBLIC_CHAT_FILES_MAX_SIZE	上传文件的最大值，单位为字节，如果不设置或设置为0，则表示没有限制	0
SUPABASE_API_URL	Supabase的API地址，格式如https://xxxx.supabase.co
SUPABASE_API_KEY	Supabase的API密钥
OPENAI_TYPE	OPENAI的类型，取值为OPENAI或AZURE_OPENAI	OPENAI
OPENAI_API_KEY	OPENAI的密钥
OPENAI_API_MODEL	OPENAI的模型名称，如gpt-3.5-turbo、gpt-3.5-turbo-16k	gpt-3.5-turbo
AZURE_OPENAI_API_KEY	AZURE OPENAI的密钥
AZURE_OPENAI_API_DEPLOYMENT_NAME	AZURE OPENAI的部署名称
AZURE_OPENAI_API_EMBEDDINGS_DEPLOYMENT_NAME	AZURE OPENAI的嵌入模型部署名称
AZURE_OPENAI_API_INSTANCE_NAME	AZURE OPENAI的实例名称
AZURE_OPENAI_API_VERSION	AZURE OPENAI的API版本	2023-03-15-preview

😁本地运行

执行以下命令：

npm install

npm run dev

打开浏览器，访问http://localhost:3000

Docker部署

docker run -d -p 3000:3000 \
  --name chatemail \
  --env NEXT_PUBLIC_CHAT_FILES_MAX_SIZE=10000000 \
  --env NEXT_PUBLIC_CHAT_FILES_UPLOAD_PATH=public/uploads \
  --env SUPABASE_API_URL=${SUPABASE_API_URL} \
  --env SUPABASE_API_KEY=${SUPABASE_API_KEY} \
  --env OPENAI_TYPE=OPENAI \
  --env OPENAI_API_KEY=${OPENAI_API_KEY} \
  --env OPENAI_API_MODEL=gpt-3.5-turbo \
  rainboy2010/chatemail:latest

或者

docker run -d -p 3000:3000 \
  --name chatemail \
  --env NEXT_PUBLIC_CHAT_FILES_MAX_SIZE=10000000 \
  --env NEXT_PUBLIC_CHAT_FILES_UPLOAD_PATH=public/uploads \
  --env SUPABASE_API_URL=${SUPABASE_API_URL} \
  --env SUPABASE_API_KEY=${SUPABASE_API_KEY} \
  --env OPENAI_TYPE=AZURE_OPENAI \
  --env AZURE_OPENAI_API_KEY=${AZURE_OPENAI_API_KEY} \
  --env AZURE_OPENAI_API_DEPLOYMENT_NAME=${AZURE_OPENAI_API_DEPLOYMENT_NAME} \
  --env AZURE_OPENAI_API_EMBEDDINGS_DEPLOYMENT_NAME=${AZURE_OPENAI_API_EMBEDDINGS_DEPLOYMENT_NAME} \
  --env AZURE_OPENAI_API_INSTANCE_NAME=${AZURE_OPENAI_API_INSTANCE_NAME} \
  --env AZURE_OPENAI_API_VERSION=2023-03-15-preview \
  rainboy2010/chatemail:latest

Docker compose 部署

docker-compose.yml文件如下：

version: '3'

services:
  chat-email:
    image: rainboy2010/chatemail:latest
    container_name: chatemail
    ports:
      - 3000:3000
    environment:
      NEXT_PUBLIC_CHAT_FILES_MAX_SIZE: 10000000
      NEXT_PUBLIC_CHAT_FILES_UPLOAD_PATH: public/uploads
      # supabase parameters
      SUPABASE_API_URL: <SUPABASE_API_URL>
      SUPABASE_API_KEY: <SUPABASE_API_KEY>
      OPENAI_TYPE: OPENAI
      # if OPENAI_TYPE=OPENAI,please fill below openai parameters
      OPENAI_API_KEY: <OPENAI_API_KEY>
      OPENAI_API_MODEL: gpt-3.5-turbo
      # if OPENAI_TYPE=AZURE_OPENAI,please fill below azure openai parameters
      AZURE_OPENAI_API_KEY: <AZURE_OPENAI_API_KEY>
      AZURE_OPENAI_API_DEPLOYMENT_NAME: <AZURE_OPENAI_API_DEPLOYMENT_NAME>
      AZURE_OPENAI_API_EMBEDDINGS_DEPLOYMENT_NAME: <AZURE_OPENAI_API_EMBEDDINGS_DEPLOYMENT_NAME>
      AZURE_OPENAI_API_INSTANCE_NAME: <AZURE_OPENAI_API_INSTANCE_NAME>
      AZURE_OPENAI_API_VERSION: 2023-03-15-preview

运行：

docker compose up -d