hexists #

Checks if a field exists in a hash.

Arguments #

hexists(key, field, [options]);

Arguments	Type	Description
`key`	string	Hash key
`field`	string	Field name
`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 a boolean telling whether the checked field exists or not.

Usage #

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

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