Spaces:
Sleeping
Sleeping
File size: 3,083 Bytes
5e8fd8b 1c8932d 83198be 553dd69 676f7fc 83198be 5e8fd8b 83198be 5e8fd8b 9f0a9ca 5e8fd8b ab4a5ae 676f7fc f1ee0b4 608245a 83198be 6eb1c7e 83198be 553dd69 6eb1c7e 83198be 6eb1c7e 83198be 628c689 608245a 3f857b9 f1ee0b4 676f7fc 608245a 676f7fc 83198be 676f7fc 83198be 676f7fc 5e8fd8b 83198be f1ee0b4 83198be 676f7fc 5e8fd8b 4c88907 f1ee0b4 83198be 4c88907 83198be 676f7fc 4c88907 5e8fd8b |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 |
import os
import logging
import shutil
import time
import re
from fastapi import FastAPI, Request, UploadFile
from fastapi.middleware import Middleware
from fastapi.middleware.cors import CORSMiddleware
from fastapi.responses import PlainTextResponse, StreamingResponse
from .rag import ChatPDF
middleware = [
Middleware(
CORSMiddleware,
allow_origins=["*"],
allow_methods=['*'],
allow_headers=['*']
)
]
app = FastAPI(middleware=middleware)
files_dir = os.path.expanduser("~/wtp_be_files/")
session_assistant = ChatPDF()
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)
isBusy = False
@app.middleware("http")
async def resolve_availability(request: Request, call_next):
global isBusy
if isBusy:
return PlainTextResponse("Server is busy", status_code=503)
response = await call_next(request)
return response
def astreamer(generator):
global isBusy
t0 = time.time()
for i in generator:
logger.info(f"Chunk being yielded (time {int((time.time()-t0)*1000)}ms) - {i}")
yield i
logger.info(f"X-Process-Time: {int((time.time()-t0)*1000)}ms")
isBusy = False
@app.get("/query")
async def process_input(text: str):
global isBusy
isBusy = True
generator = None
if text and len(text.strip()) > 0:
if session_assistant.pdf_count > 0:
text = text.strip()
streaming_response = session_assistant.ask(text)
generator = streaming_response.response_gen
else:
message = "Please provide the PDF document you'd like to add."
generator = re.split(r'(\s)', message)
else:
message = "Your query is empty. Please provide a query for me to process."
generator = re.split(r'(\s)', message)
return StreamingResponse(astreamer(generator), media_type='text/event-stream')
@app.post("/upload")
def upload(files: list[UploadFile]):
global isBusy
isBusy = True
try:
os.makedirs(files_dir)
for file in files:
try:
path = f"{files_dir}/{file.filename}"
file.file.seek(0)
with open(path, 'wb') as destination:
shutil.copyfileobj(file.file, destination)
finally:
file.file.close()
finally:
session_assistant.ingest(files_dir)
shutil.rmtree(files_dir)
message = "All files have been added successfully to your account. Your first query may take a little longer as the system indexes your documents. Please be patient while we process your request."
generator = re.split(r'(\s)', message)
return StreamingResponse(astreamer(generator), media_type='text/event-stream')
@app.get("/clear")
def clear():
global isBusy
isBusy = True
session_assistant.clear()
message = "Your files have been cleared successfully."
generator = re.split(r'(\s)', message)
return StreamingResponse(astreamer(generator), media_type='text/event-stream')
@app.get("/")
def ping():
return "Pong!"
|