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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Easy way to unmarshall/dump objects to Json?","articleBody":"Sorry if I missed it, but could not find it in the documentation or after playing around. \r\n\r\nBasically I am trying to get the raw json dump of objects like Tables or [TableList](https://cloud.google.com/bigquery/docs/reference/rest/v2/tables/list#response-body), but via the API we are getting many composed objects that need to be unmarshalled manually one by one.\r\n\r\nFor example: what would be a way to dump into json a TableList? Thanks!\r\n\r\n```\r\nfrom google.cloud import bigquery\r\nimport json\r\n\r\nclient = bigquery.Client()                \r\n                \r\nfor d in client.list_datasets():\r\n  for t in client.list_tables(d.reference):\r\n    print(t)\r\n    print(repr(t))\r\n    print(dir(t))\r\n    print(t.table_id)\r\n    print(json.dumps(t))\r\n```\r\n    \r\n    \r\n```\r\n\u003cgoogle.cloud.bigquery.table.TableListItem object at 0x7f02c30b0760\u003e\r\n\u003cgoogle.cloud.bigquery.table.TableListItem object at 0x7f02c30b0760\u003e\r\n['__class__', '__delattr__', '__dict__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__le__', '__lt__', '__module__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__', '_properties', 'clustering_fields', 'created', 'dataset_id', 'expires', 'friendly_name', 'from_string', 'full_table_id', 'labels', 'partition_expiration', 'partitioning_type', 'project', 'reference', 'table_id', 'table_type', 'time_partitioning', 'to_bqstorage', 'view_use_legacy_sql']\r\narr\r\nTraceback (most recent call last):\r\n  File \"\u003cstdin\u003e\", line 7, in \u003cmodule\u003e\r\n  File \"/usr/lib/python3.8/json/__init__.py\", line 231, in dumps\r\n    return _default_encoder.encode(obj)\r\n  File \"/usr/lib/python3.8/json/encoder.py\", line 199, in encode\r\n    chunks = self.iterencode(o, _one_shot=True)\r\n  File \"/usr/lib/python3.8/json/encoder.py\", line 257, in iterencode\r\n    return _iterencode(o, 0)\r\n  File \"/usr/lib/python3.8/json/encoder.py\", line 179, in default\r\n    raise TypeError(f'Object of type {o.__class__.__name__} '\r\nTypeError: Object of type TableListItem is not JSON serializable\r\n    \r\n```\r\n    \r\n--\u003e\r\n\r\n`{\"created\":\"2020-10-05T01:43:40.077Z\",\"dataset_id\":\"d\",\"description\":null, ...}`\r\n","author":{"url":"https://github.com/romainr","@type":"Person","name":"romainr"},"datePublished":"2020-10-05T20:08:29.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/298/python-bigquery/issues/298"}