func sendOneReminder(ctx context.Context, t *taskqueue.Task) {
// decode todo item
todoItem_ := jsonToTodoItem(t.Payload)
switch (*todoItem_).(type) {
case TodoItem:
{
todoItem := (*todoItem_).(TodoItem)
if reminderDue(todoItem) {
// send email reminder
// note: this doesn't handle the case where a task gets complete in between
// when it's enqueued and when the reminder is due to be sent
if sendReminderEmail(ctx,
todoItem.OwnerEmail,
todoItem.Description,
todoItem.DueDate) {
err := taskqueue.Delete(ctx, t, "reminders")
if err != nil {
// ???
}
}
// if sending the reminder failed, we just leave it in the queue
} else {
err := taskqueue.ModifyLease(ctx, t, "reminders", 0)
if err != nil {
// ??
}
}
}
default:
// ignore errors, for now
break
}
}
func example() {
var ctx context.Context
// [START deleting_tasks]
// Purge entire queue...
err := taskqueue.Purge(ctx, "queue1")
// Delete an individual task...
t := &taskqueue.Task{Name: "foo"}
err = taskqueue.Delete(ctx, t, "queue1")
// [END deleting_tasks]
_ = err
}