feat: init project

app/controller/translate_controller.py

@@ -0,0 +1,27 @@
+from fastapi import FastAPI
+from langchain_core.output_parsers import StrOutputParser
+from langchain_core.prompts import ChatPromptTemplate
+from langserve import add_routes
+from pydantic import BaseModel, Field
+
+from app.utils.llm_utils import create_llm
+
+
+class TranslateChainInputSchema(BaseModel):
+  language: str = Field(..., description="要翻译的目标语言")
+  input: str = Field(..., description="要翻译的内容")
+
+
+translate_chain = ChatPromptTemplate.from_messages([
+  ('system', '你需要把用户的内容翻译为：{language}'),
+  ('user', "{input}")
+]) | create_llm() | StrOutputParser()
+
+
+def add_translate_route(app: FastAPI):
+  add_routes(
+    app=app,
+    runnable=translate_chain,
+    input_type=TranslateChainInputSchema,
+    path="/translate",
+  )