LangChain的核心架构

1.基本知识

2.为啥要拆成这么多包

3.LangServe的实现细节

from fastapi import FastAPI
from langchain_core.prompts import ChatPromptTemplate
from langchain_openai import ChatOpenAI
from langserve import add_routes

app = FastAPI()
prompt = ChatPromptTemplate.from_template("翻译成英文：{text}")
chain = prompt | ChatOpenAI()

# 一行代码把 Chain 变成 API
add_routes(app, chain, path="/translate")

4.LangSmith解决什么问题

5.追问