hlen

Returns the number of fields contained in a hash.

[Redis documentation]


hlen(key, [options], callback)

Arguments Type Description
key string Key identifier
options JSON Object Optional parameters
callback function Callback

Options

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

Callback Response

Returns an integer containing the number of fields in the hash.

Usage

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

// Using promises (NodeJS only)
kuzzle.memoryStorage.hlenPromise('key')
  .then(count => {
    // resolved once the action has completed
  });

Callback response:

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