Enqueue a job to be run immediately. The job will be persisted and then queued to be run immediately on the current node.

This function returns only after the job has been persisted.

Called when an application is started.

This function is called when an application is started using Application.start/2 (and functions on top of that, such as Application.ensure_started/2). This function should start the top-level process of the application (which should be the top supervisor of the application’s supervision tree if the application follows the OTP design principles around supervision).

start_type defines how the application is started:

• :normal - used if the startup is a normal startup or if the application is distributed and is started on the current node because of a failover from another node and the application specification key :start_phases is :undefined.
• {:takeover, node} - used if the application is distributed and is started on the current node because of a failover on the node node.
• {:failover, node} - used if the application is distributed and is started on the current node because of a failover on node node, and the application specification key :start_phases is not :undefined.

start_args are the arguments passed to the application in the :mod specification key (e.g., mod: {MyApp, [:my_args]}).

This function should either return {:ok, pid} or {:ok, pid, state} if startup is successful. pid should be the PID of the top supervisor. state can be an arbitrary term, and if omitted will default to []; if the application is later stopped, state is passed to the stop/1 callback (see the documentation for the c:stop/1 callback for more information).

use Application provides no default implementation for the start/2 callback.

Callback implementation for Application.start/2.

Touch a job to avoid it to timeout.

This is intended to be called from within worker if your job is long.

For example, you might have an encoding job that take any time to finish depending on the lenght of the video. You will set the max_runtime or the worker to a couple of minutes, and in your perform function inside the worker, you will call this function to extend your job lifetime.