Geospatial filtering of documents with locations within a given radius from given point with LoopbackJS

Question

There is a requirement to do a query for documents which are within a certain radius from a given point. If you use MongoDB as a database, you can do the following:

• create geospatial 2dsphere index;
• save data in a proper format;
• filter documents which are within distance of 10 miles from given location you would do: db.Location.find({loc: {$geoWithin: {$centerSphere: [[-110.111111, 30.333333], 10 / 3963.2]}}})

What would be the proper way to achieve the same using Loopback's Geopoint, near and lt?

Crossposted here as well: https://groups.google.com/forum/#!topic/loopbackjs/ncG7NdJ-eEQ

Answer 1

Location.find({where: {loc: {near: [-110.111111, 30.333333], maxDistance: 10}}})

This will do where 'Location' is your model name. 'loc' is your location field. 'near' specifies center coordinates. and 'maxDistance' specifies area to cover.

Also, this is for 2d indexes.