SDK
SDK Javascript v5.x
1

getset #

Sets a new value for a key and returns its previous value.

[Redis documentation]


getset(key, value, [options], [callback]) #

Arguments Type Description
key string Key identifier
value string Key's new value
options JSON Object Optional parameters
callback function Callback

Options #

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

Return Value #

Returns the MemoryStorage object to allow chaining.


Callback Response #

Returns the key's previous value.

Usage #

Copied to clipboard!
// Using callbacks (NodeJS or Web Browser)
kuzzle.memoryStorage.getset('key', 'new value', function (err, oldValue) {
  // callback called once the action has completed
});
// Using promises (NodeJS only)
kuzzle.memoryStorage.getsetPromise('key', 'new value')
  .then(oldValue => {
    // resolved once the action has completed
  });

Callback response:

Copied to clipboard!
"value"