georadiusbymember #

Returns the members (added with geoadd) of a given key inside the provided geospatial radius, centered around one of a key's member.

[Redis documentation]

Arguments #

georadiusbymember(key, geopoint, dist, unit, [options]);

Arguments	Type	Description
`key`	string	Key
`geopoint`	string	Name of the geopoint to use as the center
`dist`	number	Distance from the center
`unit`	string	Unit of the distance parameter value. Allowed values: `m`, `km`, `mi`, `ft`
`options`	object	Optional query arguments

options #

The options arguments can contain the following option properties:

Property	Type (default)	Description
`count`	integer	Limit the number of returned geopoints to the provided value
`queuable`	boolean (true)	If true, queues the request during downtime, until connected to Kuzzle again
`sort`	string	Sort the result by distance, relative to the center. Allowed values: `ASC`, `DESC`
`withcoord`	boolean (false)	Include the position of the matched geopoint in the result
`withdist`	boolean (false)	Include the calculated distance from the matched geopoint to center

Resolve #

Resolves to an array of matched geopoints.

Each returned geopoint is an object with the following properties:

Property	Type	Description
`name`	string	Geopoint identifier
`coordinates`	number[]	Geopoint coordinates in the following format: `[lon, lat]`. Only available if the option `withcoord` is set
`distance`	number	Distance from the center. Only available if the option `withdist` is set

Usage #

const kuzzleHQ = {
  lon: 3.9109057,
  lat: 43.6073913,
  name: 'HQ'
};
const otherHQ = {
  lon: 3.897105,
  lat: 43.6002203,
  name: 'other HQ'
};
try {
  await kuzzle.ms.geoadd('geofoo', [kuzzleHQ, otherHQ]);
  // Prints: [ { name: 'other HQ' }, { name: 'HQ' } ]
  console.log(await kuzzle.ms.georadiusbymember(
    'geofoo',
    'HQ',
    1500,
    'm'
  ));
  // Prints:
  // [
  //   { name: 'other HQ', distance: 1367.8521 },
  //   { name: 'HQ', distance: 0 }
  // ]
  console.log(await kuzzle.ms.georadiusbymember(
    'geofoo',
    'HQ',
    1500,
    'm',
    {withdist: true, sort: 'desc'}
  ));
  // Prints:
  // [
  //   {
  //     name: 'HQ',
  //     distance: 0,
  //     coordinates: [ 3.910904824733734, 43.607392252329916 ]
  //   },
  //   {
  //     name: 'other HQ',
  //     distance: 1367.8521,
  //     coordinates: [ 3.8971075415611267, 43.600221526170145 ]
  //   }
  // ]
  console.log(await kuzzle.ms.georadiusbymember(
    'geofoo',
    'HQ',
    1500,
    'm',
    {withcoord: true, withdist: true, sort: 'asc'}
  ));
} catch (error) {
  console.error(error.message);
}

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