"missing_event" error on request to identify API

Hey!

I’m attempting to submit a post request via python to the Identify API, but I keep getting back a 400 “missing_event” error.

My request looks like:

        IDENTIFY_ENDPOINT = 'https://api2.amplitude.com/identify'
        data = {
            'api_key': API_KEY,
            'identification': [{
                'user_id': 'user_id',
                'user_properties': { 'exp_group': 'control' }
            }]
        }
        res = post(IDENTIFY_ENDPOINT, headers={}, json=data)

I’ve seen other threads about a similar topic on this forum, but no helpful solutions from them.

Thanks in advance!