travel-advice-publisher: Publish and Notification Workflow
The tasks order is validated to ensure that the email notification is always the final one.
The last task (delivery of email via the email-alert-api) queues up a new Sidekiq job only if the previous tasks completed successfully (publishing has succeeded).
The publish action builds an array of four tasks.
If one of the first three actions fails for whatever reason, the Sidekiq job fails and the retry mechanism kicks in (retries at exponentially increasing intervals up to 25 times in 21 days before being moved to the ‘dead’ queue).
Once the first three actions have succeeded, the fourth action enqueues a new job to send the email notification command to email alerts api. This job can then fail/retry/succeed as above.
The publisher currently has no view on the status of the publishing or email alert. Once they click
Publish and the job is queued, a flash message is displayed -
Barbados travel advice published. which at that point is not necessarily the case.