Making trivial GeoJSON file with Feature collection of points

Question

I'm trying to generate a GeoJSON file with a feature collection of points to render in QGIS, however, when I load my .geojson file I don't see anything. To figure out what's going on, I've tried to get a trivial file to load. Here is an example:

{ "type": "FeatureCollection",
  "features": [
    { "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [-27.4670353, 153.013123]
      },
      "properties": {"prop0": "value0"}
    }
  ]
}

According to the GeoJSON documentation;

The coordinate reference system for all GeoJSON coordinates is a geographic coordinate reference system, using the World Geodetic System 1984 (WGS 84) datum, with longitude and latitude units of decimal degrees

Sure enough, when I put the coordinates -27.4670353, 153.013123 into https://coordinates-converter.com/ I get a location somewhere in Brisbane, Australia:

However, when I copy the above JSON file into https://geojson.io/ I get nothing:

When I load the example GeoJSON file at https://gist.github.com/wavded/1200773?short_path=99c1af9 it does seem to work though:

However, to the best of my knowledge, these are not WGS84 decimal coordinates. What's happening here?

Answer 1

If you carefully look at GeoJSON docs that you cited, you can read

using the World Geodetic System 1984 (WGS 84) datum, with longitude and latitude units of decimal degrees

It clearly states that order of coordinates is [lon, lat], but in your GeoJSON order is reversed. So if you try this in geojson.io:

{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          153.013123,
          -27.4670353
        ]
      },
      "properties": {
        "prop0": "value0"
      }
    }
  ]
}

you will see this: