added a function to convert the step file from the

upload to an obj file for 3D comparison

main.py

@@ -1,6 +1,7 @@
 import os
 import tempfile
 import uuid
+import subprocess
 
 from fastapi import FastAPI, UploadFile, File, HTTPException
 from fastapi.staticfiles import StaticFiles
@@ -56,3 +57,18 @@ async def upload_file(file: UploadFile = File(...)):
         "content_type": file.content_type,
         "size_bytes": target.stat().st_size,
     }
+@app.post("/upload/{file_id}/convert")
+async def convert_obj(file_id: str):
+    inpath = UPLOAD_DIR / Path(file_id)
+
+    #check for target
+
+    outpath = UPLOAD_DIR / Path(file_id).with_suffix(".obj")
+    result = subprocess.run(["freecadcmd", "step_to_obj_headless.py", inpath, outpath])
+
+    return {
+        "file_id": file_id,
+        "inpath": inpath,
+        "outpath": outpath,
+        "status": result.__str__()
+        }