zrank #

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

[Redis documentation]

Arguments #

zrank(key, member, [options]);

Arguments	Type	Description
`key`	string	Sorted set key
`member`	string	Member value
`options`	object	Optional query arguments

options #

The options arguments can contain the following option properties:

Property	Type (default)	Description
`queuable`	boolean (true)	If true, queues the request during downtime, until connected to Kuzzle again

Resolve #

Resolves to the index of the found member in the sorted set, or to null if the member is not found.

Usage #

try {
  await kuzzle.ms.zadd('ssetfoo', [
    {member: 'foo', score: '42'},
    {member: 'bar', score: '4'},
    {member: 'baz', score: '-272.15'}
  ]);
  // Prints: 2
  console.log(await kuzzle.ms.zrank('ssetfoo', 'foo'));
  // Prints: null
  console.log(await kuzzle.ms.zrank('ssetfoo', 'qux'));
} catch (error) {
  console.error(error.message);
}

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