Ansible Module Development: TypeError: Value of unknown type: <class 'bson.objectid.ObjectId'>, 5ec14572cce378f1d3df48eb

[syhR8]

Hello,

I have started development of an Ansible module to insert a document into a MongoDB database. It's over at https://github.com/ansible-collections/community.mongodb/

When a MongoDB document is inserted, without providing a value for _id, an Object ID is created automatically and returned. When this happens I get the following error...

An exception occurred during task execution. To see the full traceback, use -vvv. The error was: TypeError: Value of unknown type: <class 'bson.objectid.ObjectId'>, 5ec14572cce378f1d3df48eb
665
fatal: [testhost]: FAILED! => {"changed": false, "module_stderr": "Traceback (most recent call last):\n  File \"/root/.ansible/tmp/ansible-tmp-1589724530.3062885-3682-27933782860899/AnsiballZ_mongodb_document.py\", line 143, in <module>\n    _ansiballz_main()\n  File \"/root/.ansible/tmp/ansible-tmp-1589724530.3062885-3682-27933782860899/AnsiballZ_mongodb_document.py\", line 135, in _ansiballz_main\n    invoke_module(zipped_mod, temp_path, ANSIBALLZ_PARAMS)\n  File \"/root/.ansible/tmp/ansible-tmp-1589724530.3062885-3682-27933782860899/AnsiballZ_mongodb_document.py\", line 81, in invoke_module\n    runpy.run_module(mod_name='ansible_collections.community.mongodb.plugins.modules.mongodb_document', init_globals=None, run_name='__main__', alter_sys=True)\n  File \"/usr/lib/python3.6/runpy.py\", line 205, in run_module\n    return _run_module_code(code, init_globals, run_name, mod_spec)\n  File \"/usr/lib/python3.6/runpy.py\", line 96, in _run_module_code\n    mod_name, mod_spec, pkg_name, script_name)\n  File \"/usr/lib/python3.6/runpy.py\", line 85, in _run_code\n    exec(code, run_globals)\n  File \"/tmp/ansible_mongodb_document_payload_oe81u9jo/ansible_mongodb_document_payload.zip/ansible_collections/community/mongodb/plugins/modules/mongodb_document.py\", line 483, in <module>\n  File \"/tmp/ansible_mongodb_document_payload_oe81u9jo/ansible_mongodb_document_payload.zip/ansible_collections/community/mongodb/plugins/modules/mongodb_document.py\", line 479, in main\n  File \"/tmp/ansible_mongodb_document_payload_oe81u9jo/ansible_mongodb_document_payload.zip/ansible/module_utils/basic.py\", line 2045, in exit_json\n  File \"/tmp/ansible_mongodb_document_payload_oe81u9jo/ansible_mongodb_document_payload.zip/ansible/module_utils/basic.py\", line 2038, in _return_formatted\n  File \"/tmp/ansible_mongodb_document_payload_oe81u9jo/ansible_mongodb_document_payload.zip/ansible/module_utils/basic.py\", line 413, in remove_values\n  File \"/tmp/ansible_mongodb_document_payload_oe81u9jo/ansible_mongodb_document_payload.zip/ansible/module_utils/basic.py\", line 396, in _remove_values_conditions\nTypeError: Value of unknown type: <class 'bson.objectid.ObjectId'>, 5ec14572cce378f1d3df48eb\n", "module_stdout": "", "msg": "MODULE FAILURE\nSee stdout/stderr for the exact error", "rc": 1}

If I specify an integer value for the _id field Ansible doesn't complain. The problem line of code is the following...

inserted_id = deepcopy(str(client[database][collection].insert_one(document).inserted_id))

The deepcopy and str cast were attempts to prevent the problem but Ansible still complains. I think this is a problem specific to something in Ansible. There's probably not much point in a mongodb_document module if I can't support using a BSON ObjectId. Would anyone have a clue what this might be and if I can get around it? 

Cheers,

Rhys