hsetnx #

Sets a field and its value in a hash, only if the field does not already exist.

[Redis documentation]

Arguments #

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hsetnx(key, [options]);

Arguments	Type	Description
key	string	Key
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 #

Usage #

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try {
  // Prints: true
  console.log(await kuzzle.ms.hsetnx('hashfoo', 'foo', 'bar'));
  // Prints: false
  console.log(await kuzzle.ms.hsetnx('hashfoo', 'foo', 'qux'));
  // Prints: bar
  console.log(await kuzzle.ms.hget('hashfoo', 'foo'));
} catch (error) {
  console.error(error.message);
}