How do I filter Google Maps results for a specific region?

Question

I’m with a route system that captures user data and maps routes on the map:

geocoder.geocode({ 
    'address': endereco + ', Brasil', 
    'region': 'BR' 
}, function (results, status) {}

The problem is that it is returning addresses from all over Brazil and in some cases even outside it.

How to configure the script to search only in a specific city? Ex: Search only locations that are within Belo Horizonte.

Answer 1

You must use the option componentRestrictions and set the filter to the field administrativeArea, documentation here.

Then your code would look like this:

geocoder.geocode({ 
    'address': endereco,
    'region': 'BR',
    'componentRestrictions': {
        'country': 'BR',
        'administrativeArea': 'Belo Horizonte'
    }
}, function (results, status) {

}

http://maps.googleapis.com/maps/api/geocode/json?address=av+afonso+pena&components=country:BR|administrative_area:BH