added HF token variable

app.py

@@ -11,11 +11,9 @@ from arxiv_latex_extractor import get_paper_content
 from fastapi.staticfiles import StaticFiles
 from huggingface_hub import HfApi
 
-hf_api = HfApi()
 
 from coreservice import app
 
-hf_api = HfApi()
 
 LEADING_PROMPT = "Read the following paper:"
 
@@ -149,6 +147,8 @@ def load_context(paper_id):
         # Upload the paper to Hugging Face
         try:
             if os.path.getsize(temp_file_path) > 1:
+                hf_api = HfApi(token=os.environ["HUGGINGFACE_TOKEN"])
+
                 hf_api.upload_file(
                     path_or_fileobj=temp_file_path,
                     path_in_repo=f"papers/{paper_id}.tex",