Create app.py

app.py

@@ -0,0 +1,42 @@
+import os
+import tempfile
+from fastapi import FastAPI, UploadFile, File, Form
+from fastapi.responses import JSONResponse
+from services.extract_text import extract_text_from_file
+from services.vector_store import get_entry, upsert_entry
+from services.s3_utils import upload_to_s3
+
+api = FastAPI()
+
+def save_temp_file(file: UploadFile) -> str:
+    tmp = tempfile.NamedTemporaryFile(delete=False)
+    tmp.write(file.file.read())
+    tmp.flush()
+    upload_to_s3(tmp.name, f"documents/{file.filename}")
+    print(f"📤 Uploaded {file.filename} to S3")
+    return tmp.name
+
+@api.post("/api/text")
+async def extract_text_api(
+    file: UploadFile = File(...),
+    filename: str = Form(...),
+    start_page: int = Form(...),
+    end_page: int = Form(...)
+):
+    cache = get_entry(filename) or {}
+    if "text" in cache:
+        return {"text": cache["text"]}
+    
+    path = save_temp_file(file)
+
+    with open(path, "rb") as fh:
+        cache["text"] = extract_text_from_file(fh, start_page, end_page, filename)
+    
+    os.remove(path)
+    cache.pop("filename", None)
+    upsert_entry(filename, **cache)
+    return {"text": cache["text"]}
+
+if __name__ == "__main__":
+    import uvicorn
+    uvicorn.run("app:api", host="0.0.0.0", port=3001, reload=True)