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Create main.py
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main.py
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from fastapi import FastAPI, File, UploadFile
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from pydantic import BaseModel
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from pathlib import Path
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from fastapi import Form
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from fastapi.responses import JSONResponse
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from langchain.text_splitter import RecursiveCharacterTextSplitter
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from PyPDF2 import PdfReader
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from fastapi import Depends
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def generate_random_string(length):
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letters = string.ascii_lowercase
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return ''.join(random.choice(letters) for i in range(length))
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app = FastAPI()
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class FileToProcess(BaseModel):
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uploaded_file: UploadFile = File(...)
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@app.get("/")
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async def home():
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return "API Working!"
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@app.post("/file/upload")
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async def upload_file(username: str, file_to_process: FileToProcess = Depends()):
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uploaded_file = file_to_process.uploaded_file
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random_string=generate_random_string(20)
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file_path = random_string
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#path_to_save_file = Path.home() / username / "saved_files"
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#path_to_save_file.mkdir(parents=True, exist_ok=True)
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file_saved_in_api = f"{file_path}/{uploaded_file.filename}"
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with open(file_saved_in_api, "wb+") as file_object:
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file_object.write(uploaded_file.file.read())
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# 下面是你要处理的代码
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text_splitter = RecursiveCharacterTextSplitter(
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#separator = "\n",
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chunk_size = 500,
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chunk_overlap = 100, #striding over the text
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length_function = len,
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)
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doc_reader = PdfReader(file_saved_in_api)
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raw_text = ''
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for i, page in enumerate(doc_reader.pages):
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text = page.extract_text()
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if text:
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raw_text += text
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temp_texts = text_splitter.split_text(raw_text)
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print(temp_texts)
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return {"INFO": f"File '{uploaded_file.filename}' saved to your profile."}
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