Geo Search using Mongo $geoWithin and $geoIntersects

[lablancas]

In my use case, I have a relationship that is determined by GeoJSON point in one collection (e.g. Business) and GeoJSON polygon in another collection (e.g. Neighborhood).

When I want to find the businesses in a neighborhood, I use $geoWithin to see which businesses are within the neighborhood's polygon.

When I want to find the neighborhoods for a business, I use the $geoIntersects to see where the business point intersects with a neighborhood polygon.

interface Neighborhood {
  geojson: JSON // a GeoJSON Polygon
}

interface Business {
  geojson: JSON // a GeoJSON Point
}

// when looking for a neighborhood's businesses, the query is like this
db.collections.business.find({ 
  "geojson.geometry": {
        $geoWithin: { $geometry: neighborhood.geojson.geometry }
    }
});

db.collections.neighborhood.find({ 
  "geojson.geometry": {
        $geoIntersects: { $geometry: business.geojson }
    }
});

[lablancas]

I doubt this will be a priority so any advice on how to get this functionality will be greatly appreciated. I was hoping that I could build a custom resolver or use a field hook, but I have not found a straightforward way to do something like this. Thinking I may have to build my own database connection or expose this data through an external API endpoint...

[denolfe]

This functionality would have to be built into core, and I think this is something that we'd be willing to accept a PR for.

As of now, we support the near operator. In order to support geoWithin and geoIntersects, the logic for each of these would need to be added wherever near's is such as this as well as tests. Here are the near tests.