Every request sent to the API should get a response. The response contains multiple fields.
Processing time (processing_time)
Provides information about how long the processing of your request took on our side (in seconds). Can be useful for debugging.
If any catchable error has occured you will find it inside of this field.
This field contains some informations you might or might not consider useful.
Event Log (event_log)
Sometimes it can be helpful to see the history of events ocuring on the server side.
In the event_log field you can see all events triggered by the api in chronological order.