You pass the string directly to the Open/OpenEx function.
In python it's just:
#gdal 1.x
ds = ogr.Open('some geojson string')
or
#gdal 2.x
ds = gdal.OpenEx('some geojson string')
You pass the string directly to the Open/OpenEx function.
In python it's just:
#gdal 1.x
ds = ogr.Open('some geojson string')
or
#gdal 2.x
ds = gdal.OpenEx('some geojson string')