TypeError: Object of type WorkItem is not JSON serializable

Question

I received this error after running the script below. I would like to create a json file through the result that is generated in this script. What can I do to correct this probl

Answer 1

The following produces a generator, which JSON can not serialize:

work_items = (wit_client.get_work_item(int(result.id)) for result in results)

You can instead make work_items a list, which JSON can serialize:

work_items = [wit_client.get_work_item(int(result.id)) for result in results]

Answer 2

Inspired by the thread provided by @jordanm. You can override the default() method to serialize additional types.

I made below changes to your code, and it worked when i tested.

First make work_items a list:

work_items = [wit_client.get_work_item(int(result.id)) for result in results]

Then in print_work_items method, i override the default method in json.dump() with default = lambda o: o.__dict__. Please check below:

def print_work_items(work_items):
    for work_item in work_items:
        with open('teste_project.json', 'w') as json_file:
            json.dump(work_items, json_file, default = lambda o: o.__dict__, sort_keys=True, indent=4)