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import os
from fastapi import FastAPI, HTTPException
from pydantic import BaseModel
from typing import List, Optional
import uuid
from datetime import datetime
import sqlite3
from groq import Groq
app = FastAPI()
# Initialize Groq client
client = Groq(api_key=os.environ.get("GROQ_API_KEY"))
# Initialize in-memory SQLite database
conn = sqlite3.connect(':memory:')
c = conn.cursor()
c.execute('''CREATE TABLE conversations
(id TEXT PRIMARY KEY, messages TEXT, last_updated TIMESTAMP)''')
conn.commit()
class Message(BaseModel):
role: str
content: str
class ChatRequest(BaseModel):
conversation_id: Optional[str] = None
messages: List[Message]
class ChatResponse(BaseModel):
conversation_id: str
response: str
@app.post("/chat", response_model=ChatResponse)
async def chat(request: ChatRequest):
conversation_id = request.conversation_id or str(uuid.uuid4())
# Retrieve existing conversation or start a new one
c.execute("SELECT messages FROM conversations WHERE id = ?", (conversation_id,))
result = c.fetchone()
if result:
existing_messages = eval(result[0])
messages = existing_messages + [{"role": msg.role, "content": msg.content} for msg in request.messages]
else:
messages = [{"role": msg.role, "content": msg.content} for msg in request.messages]
# Call Groq API
chat_completion = client.chat.completions.create(
messages=messages,
model="llama3-8b-8192",
)
response = chat_completion.choices[0].message.content
# Update conversation in database
messages.append({"role": "assistant", "content": response})
c.execute("INSERT OR REPLACE INTO conversations (id, messages, last_updated) VALUES (?, ?, ?)",
(conversation_id, str(messages), datetime.now()))
conn.commit()
return {"conversation_id": conversation_id, "response": response}
@app.get("/conversations/{conversation_id}")
async def get_conversation(conversation_id: str):
c.execute("SELECT messages FROM conversations WHERE id = ?", (conversation_id,))
result = c.fetchone()
if result:
return {"conversation_id": conversation_id, "messages": eval(result[0])}
raise HTTPException(status_code=404, detail="Conversation not found")
@app.get("/")
async def read_root():
return {"message": "Welcome to the Groq chatbot API with in-memory conversation persistence!"}
if __name__ == "__main__":
import uvicorn
uvicorn.run(app, host="0.0.0.0", port=7860) |