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import json, os
from fastapi.middleware.cors import CORSMiddleware
from fastapi import FastAPI, Request, Header, BackgroundTasks, HTTPException, status
import google.generativeai as genai
from linebot import LineBotApi, WebhookHandler
from linebot.exceptions import InvalidSignatureError
from linebot.models import MessageEvent, TextMessage, TextSendMessage, ImageSendMessage, AudioMessage
genai.configure(api_key=os.environ["GOOGLE_API_KEY"])
generation_config = genai.types.GenerationConfig(max_output_tokens=2048, temperature=0.2, top_p=0.5, top_k=16)
model = genai.GenerativeModel('gemini-1.5-flash')
line_bot_api = LineBotApi(os.environ["CHANNEL_ACCESS_TOKEN"])
line_handler = WebhookHandler(os.environ["CHANNEL_SECRET"])
working_status = os.getenv("DEFALUT_TALKING", default = "true").lower() == "true"
app = FastAPI()
app.add_middleware(
CORSMiddleware,
allow_origins=["*"],
allow_credentials=True,
allow_methods=["*"],
allow_headers=["*"],
)
@app.get("/")
def root():
return {"title": "Line Bot"}
@app.post("/webhook")
async def webhook(
request: Request,
background_tasks: BackgroundTasks,
x_line_signature=Header(None),
):
body = await request.body()
try:
background_tasks.add_task(
line_handler.handle, body.decode("utf-8"), x_line_signature
)
except InvalidSignatureError:
raise HTTPException(status_code=400, detail="Invalid signature")
return "ok"
@line_handler.add(MessageEvent, message=TextMessage)
def handle_message(event):
global working_status
if event.type != "message" or event.message.type != "text":
TextSendMessage(text="Event type error:[No message or the message does not contain text]")
elif event.message.text == "再見":
working_status = True
line_bot_api.reply_message(
event.reply_token,
TextSendMessage(text="Bye!"))
return
elif working_status:
try:
prompt = event.message.text
completion = model.generate_content(prompt, generation_config=generation_config)
if (completion.parts[0].text != None):
out = completion.parts[0].text
else:
out = "Gemini沒答案!請換個說法！"
except:
out = "Gemini執行出錯!請換個說法！"
line_bot_api.reply_message(
event.reply_token,
TextSendMessage(text=out))
if __name__ == "__main__":
uvicorn.run("main:app", host="0.0.0.0", port=7860, reload=True) |