WHAT

Currently the expires_at value is dynamically calculated in the KafkaRequest presenter as it wasn't originally stored in the database (see here)

Refactor this so that the expires_at value is retrieved from the database

WHY

If the lifespanSeconds or grace_period_days configuration changes, KafkaRequests with expires_at set are not recalculated. Because of this we need to ensure we don't dynamically calculate it any longer in the presenter.

HOW

The kafkaRequest (*dbapi.KafkaRequest) object passed as a parameter to the Presenter should have the expires_at value already.

• Remove any existing code that is used to calculate the expires_at value in the presenter
• Set ExpiresAt to kafkaRequest.ExpiresAt.

DONE

• KafkaRequest ExpiresAt value in the presenter is retrieved from the database
• Unit/integration tests updated if necessary