Essentially I want to do this but 5 years ago when this was asked it was not possible and I was wondering if anything has changed:
https://stackoverflow.com/questions/36373406/how-to-filter-dimension-values-when-fetching-data-from-...
want to fetch data from Google Analytics With M (PowerQuery/PowerBI), but want to filter the dimension values on the fily, Let's Say my dimension is "Page" and I want "Pageviews" and "Unique Pageviews" measures, provided that the "Page" is following a regex filter (ex. ga:pagePath=~^.*?([0-9]{6,7}|mpg[0-9]{1,3}){1}\.html[/]?[^ ]*)
I could use "Table.SelectRows", but as M doesn't support regex, this filter should be passed to GA api directly. Here is what M generated for me:
let
Source = GoogleAnalytics.Accounts(),
#"1234567" = Source{[Id="1234567"]}[Data],
#"UA-987654-1" = #"1234567"{[Id="UA-52004541-1"]}[Data],
#"11111" = #"UA-987654-1"{[Id="1234567"]}[Data],
#"Added Items" = Cube.Transform(#"11111", {{Cube.AddAndExpandDimensionColumn, "ga:pagePath", {"ga:pagePath"}, {"Page"}}, {Cube.AddMeasureColumn, "Pageviews", "ga:pageviews"}, {Cube.AddMeasureColumn, "Unique Pageviews", "ga:uniquePageviews"}}),
#"Filtered Rows" = Table.SelectRows(#"Added Items", each Text.Contains([Page], "html"))
in
#"Filtered Rows"
