zincrby

Increments the score of a member in a sorted set by the provided value.

[Redis documentation]


zincrby(key, member, increment, [options], [callback])

Arguments Type Description
key string Key identifier
member string Member element to increment
increment double Increment 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 a double containing the updated member's score in the sorted set.

Usage

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// Using callbacks (NodeJS or Web Browser)
kuzzle.memoryStorage.zincrby('key', 'foo', 3.14159, function (err, value) {
  // callback called once the action has completed
});

// Using promises (NodeJS only)
kuzzle.memoryStorage.zincrbyPromise('key', 'foo', 3.14159)
  .then(value => {
    // resolved once the action has completed
  });

Callback response:

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4.14159