rpoplpush #

Removes the last element of the list at source and pushes it back at the start of the list at destination.

[Redis documentation]

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rpoplpush(source, destination, [options], [callback]) #

Arguments	Type	Description
source	string	Source key identifier
destination	string	Destination key identifier
options	JSON Object	Optional parameters
callback	function	Callback

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Options #

Option	Type	Description	Default
queuable	boolean	Make this request queuable or not	true

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Return Value #

Returns the MemoryStorage object to allow chaining.

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Callback Response #

Returns the value of the removed and pushed item.

Usage #

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// Using callbacks (NodeJS or Web Browser)
kuzzle.memoryStorage.rpoplpush('sourceKey', 'destKey', function (err, value) {
  // callback called once the action has completed
});
// Using promises (NodeJS only)
kuzzle.memoryStorage.rpoplpushPromise('sourceKey', 'destKey')
  .then(value => {
    // resolved once the action has completed
  });

Callback response:

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"foo"