SDK
SDK Javascript v5.x
1

# zrank

Returns the position of an element in a sorted set, with scores in ascending order. The index returned is 0-based (the lowest score member has an index of 0).

[Redis documentation]


# zrank(key, member, [options], callback)

Arguments Type Description
key string Key identifier
member string Member of the sorted set
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 member's position in the sorted set.

# Usage

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// Using callbacks (NodeJS or Web Browser)
kuzzle.memoryStorage.zrank('key', 'foo', function (err, position) {
  // callback called once the action has completed
});
// Using promises (NodeJS only)
kuzzle.memoryStorage.zrankPromise('key', 'foo')
  .then(position => {
    // resolved once the action has completed
  });

Callback response:

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