SDK Javascript v5.x

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append #

Appends a value to a key. If the key does not exist, it is created.

[Redis documentation] (opens new window)

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

Arguments Type Description
key string Key identifier
value string Value to append to the key
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 #

Return an integer containing the new length of the key's value.

Usage #

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// Using callbacks (NodeJS or Web Browser)
kuzzle.memoryStorage.append('key', 'value', function (err, newLength) {
  // callback called once the action has completed
// Using promises (NodeJS only)
kuzzle.memoryStorage.appendPromise('key', 'value')
  .then(newLength => {
    // resolved once the action has completed

Callback response:

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