[QGIS-Developer] How to create a simple processing script in QGIS 3.x, eg just a buffer

[Anita Graser]

Hi Andrew,

On Thu, Aug 9, 2018 at 2:57 PM Andrew C <andrew.cutts at gmail.com> wrote:

> I am not clear on how QgsFeatureSinkis working, perhaps that is why I am
> not getting the buffered layer? Normally in a script I could try printing
> variables I cannot see where these are printed either when I tested.
>

I think you'd need an output layer instead of a feature sink. Have a look
at
https://github.com/qgis/QGIS/blob/master/python/plugins/processing/algs/qgis/PostGISExecuteAndLoadSQL.py

self.addOutput(QgsProcessingOutputVectorLayer(

self.OUTPUT,

self.tr("Output layer"),

QgsProcessing.TypeVectorAnyGeometry))

Regards,
Anita
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