Calling GBIF API for data points & editing into GeoJSON using Feature Collection. Validation with GeoJSONLint.

feature-collection-json.xq

xquery version "3.1";

declare option output:method 'json';
let $doc := fetch:text("http://api.gbif.org/v1/occurrence/search?limit=50&offset=0scientificName=Quercus%20macrocarpa&decimalLatitude=35.81,36.45&decimalLongitude=-87.21,-86.27
") => json:parse()
let $data := 
  for $record in $doc//results/_
  let $lat := xs:decimal($record/decimalLatitude/text())
  let $long := xs:decimal($record/decimalLongitude/text())
  let $id := $record/gbifID/text()
  let $geom := [$lat, $long, $id]
  let $objects :=
  map {
    "type": "Feature",
    "geometry": map {
      "type": "Point",
      "coordinates": [$geom?2, $geom?1]
    },
    "properties": map{
      "name": $geom?3
    }
  }
  return $objects
return 
  map {
    "type": "FeatureCollection",
    "features": array {$data}
  }