fix(#210): allowed value simplification

core/opaevaluator.go

@@ -348,7 +348,7 @@ func (evaluator *OPAEvaluator) Evaluate(logger *logrus.Entry) (interface{}, erro
 		"evaluationTimeMicroseconds": opaEvaluationTime.Microseconds(),
 		"policyName":                 evaluator.PolicyName,
 		"partialEval":                false,
-		"allowed":                    results.Allowed(),
+		"allowed":                    len(results) == 1 && len(results[0].Expressions) == 1,
 		"resultsLength":              len(results),
 		"matchedPath":                evaluator.routerInfo.MatchedPath,
 		"requestedPath":              evaluator.routerInfo.RequestedPath,

core/sdk_test.go

@@ -609,7 +609,7 @@ func TestEvaluateResponsePolicy(t *testing.T) {
 					require.NotNil(t, actual)
 					delete(actual.Data, "evaluationTimeMicroseconds")
 					require.Equal(t, logrus.Fields{
-						"allowed":       false,
+						"allowed":       true,
 						"requestedPath": testCase.path,
 						"matchedPath":   evaluatorInfo.evaluatorOptions.RouterInfo.MatchedPath,
 						"method":        testCase.method,

go.mod

@@ -12,6 +12,7 @@ require (
 	github.com/mia-platform/glogger/v2 v2.1.3
 	github.com/open-policy-agent/opa v0.53.1
 	github.com/prometheus/client_golang v1.16.0
+	github.com/prometheus/common v0.42.0
 	github.com/samber/lo v1.38.1
 	github.com/sirupsen/logrus v1.9.3
 	github.com/stretchr/testify v1.8.4
@@ -57,7 +58,6 @@ require (
 	github.com/perimeterx/marshmallow v1.1.4 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/prometheus/client_model v0.3.0 // indirect
-	github.com/prometheus/common v0.42.0 // indirect
 	github.com/prometheus/procfs v0.10.1 // indirect
 	github.com/rcrowley/go-metrics v0.0.0-20201227073835-cf1acfcdf475 // indirect
 	github.com/spf13/afero v1.9.2 // indirect