Returning string instead of JSON when error validating API parameters about openaq-api-v2 HOT 2 OPEN

Thanks this is related to #300. These errors are essentially what is returned by Pydantic, which we use for schema validation. Ideally these shouldnt be exposed directly, but instead reshaped to be a bit more consumer friendly. Either way the JSON vs string is odd. Ill take a look, but more than likely ill jut wrap these into a better JSON payload instead of the error directly

from openaq-api-v2.

Thanks. Keep us posted. I did a workaround to accommodate this. But the string payload cannot be converted to JSON because of using "( )" to represent an array, when it should be "[ ]"

from openaq-api-v2.