Geographic Information Systems Asked by Colton Shaw on May 8, 2021
I’m using the Carto API for a few functions and I’m looking for a way to return geocoded information similar to how Google does it here. With Google, you make a call with the Address like: https://maps.googleapis.com/maps/api/geocode/json?address=1600+Amphitheatre+Parkway,+Mountain+View,+CA&key=YOUR_API_KEY
and it returns a JSON like:
{
"results" : [
{
"address_components" : [
...
],
"formatted_address" : "1600 Amphitheatre Pkwy, Mountain View, CA 94043, USA",
"geometry" : {
"location" : {
"lat" : 37.4267861,
"lng" : -122.0806032
},
"location_type" : "ROOFTOP",
"viewport" : {
"northeast" : {
"lat" : 37.4281350802915,
"lng" : -122.0792542197085
},
"southwest" : {
"lat" : 37.4254371197085,
"lng" : -122.0819521802915
}
}
},
"place_id" : "ChIJtYuu0V25j4ARwu5e4wwRYgE",
"plus_code" : {
"compound_code" : "CWC8+R3 Mountain View, California, United States",
"global_code" : "849VCWC8+R3"
},
"types" : [ "street_address" ]
}
],
"status" : "OK"
}
I’d like to do the same with Carto, but I’m only finding how to parse the information through a SQL Update, but not return it on a GET call.
You can use a SELECT
statement instead of an UPDATE
. This API call...
https://USER_NAME.carto.com/api/v2/sql?q=select * from cdb_geocode_street_point('Gran Via 46', 'Madrid', 'Madrid', 'Spain')&api_key=API_KEY
...returns:
{
"rows": [
{
"cdb_geocode_street_point": "0101000020E61000002F34D769A4A50DC0C425C79DD2354440"
}
],
"time": 0.531,
"fields": {
"cdb_geocode_street_point": {
"type": "geometry",
"dims": 4,
"srid": -1
}
},
"total_rows": 1
}
So if you want to get a more human-friendly response (instead of a wkb geometry) you could change the query using ST_AsText or a combination of ST_X/ST_Y. Bear in mind that Google Maps API gives you more metadata or Places information too.
Answered by ramiroaznar on May 8, 2021
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