ExpeditedWorkExample.kt

val request = OneTimeWorkRequestBuilder<YourWorker>()
    // OutOfQuotaPolicy.RUN_AS_NON_EXPEDITED_WORK_REQUEST, which causes the job to run as an ordinary work request
    // OutOfQuotaPolicy.DROP_WORK_REQUEST, which causes the request to cancel if there is not sufficient quota.
    .setExpedited(OutOfQuotaPolicy.RUN_AS_NON_EXPEDITED_WORK_REQUEST)
    .build()

WorkManager.getInstance(context).enqueue(request)

UniqueWorkExample.kt

// For example, sync operations: you want to sync
// when you first launch the app
// every 12 to 24 hours to get the refreshest data
// when your language changes
// => you only want one sync active at a time
val syncRequest: OneTimeWorkRequest = ...

workManager
    .beginUniqueWork(
        uniqueWorkName = "sync",
        // What to do if there's a work name with the "sync" in-flight already
        // There are three types of work policies: 
        // KEEP: existing work and ignore the new work.
        // REPLACE: existing work with the new work.
        // APPEND: the new work to the end of the existing work. 
        //    The existing work becomes a `prerequisite` to the new work.
        // APPEND_OR_REPLACE: similar to APPEND, except that it is not dependent on `prerequisite` work status. 
        //    If the existing work is CANCELLED or FAILED, the new work will replace it.
        existingWorkPolicy = KEEP,
        work = syncRequest)
    .enqueue()