Exporting several layers as GeoPackages at the same time in QGIS

Question

I have dozens of temporary Layers. I'd like to export them all as GeoPackages, but I am unsure how to go about doing so without doing each one individually.

I was reviewing this code Exporting several files at same time in QGIS, but it exports files as .shp.

I have tried changing .shp to .gkpg and ESRI Shapefile to GeoPackage, but the code generated errors.

I did verify, however, that I can get the original code to run:

myDir = 'C:/temp/'

for vLayer in iface.mapCanvas().layers():
    QgsVectorFileWriter.writeAsVectorFormat( vLayer, 
        myDir + vLayer.name() + ".shp", "utf-8", 
        vLayer.crs(), "ESRI Shapefile" )

Answer 1

Another solution is to use the "Package layers" tool as a Batch Process.

Answer 2

Try the Package layers tool, and you can export the styles and metadata.

The problem in your code is the name of the OGR driver. You must set the OGR driver to GPKG instead of GeoPackage.

myDir = ''

for vLayer in iface.mapCanvas().layers():
    QgsVectorFileWriter.writeAsVectorFormat(vLayer, 
        myDir + vLayer.name() + ".gpkg",
        "utf-8", 
        vLayer.crs(),
        "GPKG")

Answer 3

There's a 'Save vector features to file' tool and in my case the expression that I used to batch name the outputs was this:

 file_path(  @INPUT  ) || '\\' ||  left(  base_file_name( @INPUT ),11) || 'RF02.gpkg.'