I am trying to write a rule but am running into an issue. I managed to extract the following from as my input:
myData:= [{"Key": "use", "Value": "1"}, {"Key": "use", "Value": "2"}, {"Key": "att1", "Value": "3"}]
I am trying to count the amount of times a key with the value use appears. However when I do:
p := {keep| keep:= myData[_]; myData.Key == "use"}
I assumed this would create a listing of all I would like to keep but the playground errors with:
1 error occurred: policy.rego:24: rego_type_error: undefined ref: data.play.myData.Key
data.play.myData.Key
I hoped I could list them in p
and then do count(p) > 1
to check if more that one is listed.
In your set comprehension for p
, you're iterating over the objects in myData
, assigning each element to keep
. Then, you assert something on myData.Key
. I think what you're looking for is
p := {keep| keep := myData[_]; keep.Key == "use"}
Be aware that it's a set comprehension, so p
would be the same for these two inputs:
myData:= [{"Key": "use", "Value": "1"}]
myData:= [{"Key": "use", "Value": "1"}, {"Key": "use", "Value": "1"}]
You could use an array comprehension (p := [ keep | keep := ... ]
) if that's not what you want.