RuntimeError: Operator bpy.ops.wm.collada_export.poll() failed, context is incorrect

[learnerandtrainer]

Hi,
I have a obj file and I want to convert it to dae. When I do it as python script every thing is well , but when I want to make this script as rest api , it throws error like below

 File "C:\Users\myalc\AppData\Local\Programs\Python\Python37\lib\site-packages\flask\app.py", line 1821, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "C:\Users\myalc\AppData\Local\Programs\Python\Python37\lib\site-packages\flask\_compat.py", line 39, in reraise
    raise value
  File "C:\Users\myalc\AppData\Local\Programs\Python\Python37\lib\site-packages\flask\app.py", line 1950, in full_dispatch_request
    rv = self.dispatch_request()
  File "C:\Users\myalc\AppData\Local\Programs\Python\Python37\lib\site-packages\flask\app.py", line 1936, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "C:\Codes\Gits\Project\ProjectServices\PythonApies\obj2collada.py", line 26, in Obj2Collada
    bpy.ops.wm.collada_export(filepath=outputPath)
  File "C:\Users\myalc\AppData\Local\Programs\Python\Python37\2.82\scripts\modules\bpy\ops.py", line 201, in __call__
    ret = op_call(self.idname_py(), None, kw)
RuntimeError: Operator bpy.ops.wm.collada_export.poll() failed, context is incorrect

Have been this library tested as rest api before ?
flask 1.1.2
Windows 10