sources_example.json

{
  "pedestrian": {
    "sidewalks": [
        "SELECT 'Feature' AS type,",
        "       ST_AsGeoJSON(ST_Transform(geom, 4326), 7)::json geometry,",
        "       json_build_object('grade', grade) properties",
        "  FROM sidewalks"],
    "crossings": [
        "SELECT 'Feature' AS type,",
        "       ST_AsGeoJSON(ST_Transform(geom, 4326), 7)::json geometry,",
        "       json_build_object('grade', grade,",
        "                         'curbramps', curbramps) properties",
        "          FROM crossings"]
  },
  "live": {
    "construction": [
        "SELECT 'Feature' AS type,",
        "       ST_AsGeoJSON(ST_Transform(geom, 4326), 7)::json geometry,",
        "       json_build_object('address', address,",
        "                         'permit_number', permit_number,",
        "                         'start_date', to_char(start_date, 'YYYY-MM-DD'),",
        "                         'end_date', to_char(end_date, 'YYYY-MM-DD'),",
        "                         'closed', closed) properties",
        "  FROM construction",
        " WHERE start_date <= current_timestamp",
        "   AND end_date >= current_timestamp"]
  }
}