incrby #

Increments the number stored at key by the provided integer value. If the key does not exist, it is set to 0 before performing the operation.

[Redis documentation]

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

Arguments	Type	Description
key	string	Key identifier
value	int	Increment value
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 an integer containing the updated key value.

Usage #

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// Using callbacks (NodeJS or Web Browser)
kuzzle.memoryStorage.incrby('key', -3, function (err, value) {
  // callback called once the action has completed
});
// Using promises (NodeJS only)
kuzzle.memoryStorage.incrbyPromise('key', -3)
  .then(value => {
    // resolved once the action has completed
  });

Callback response:

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