Add API Gateway V2 custom authorizer simple response type (#386)

* add API Gateway Custom Authorizer V2 simple response type

* set omitempty to APIGatewayV2CustomAuthorizerSimpleResponse:Context and add test cases

* add missing test case to APIGatewayV2CustomAuthorizerSimpleResponse:Context

* pin range variable

* make test input more readable

Co-authored-by: Dirk Nilius <dirk.nilius@cgi.com>
Co-authored-by: Bryan Moffatt <bmoffatt@users.noreply.github.com>

Author: 3 people

events/apigw.go

@@ -285,6 +285,12 @@ type APIGatewayCustomAuthorizerResponse struct {
 	UsageIdentifierKey string                           `json:"usageIdentifierKey,omitempty"`
 }
 
+// APIGatewayV2CustomAuthorizerSimpleResponse represents the simple format of an API Gateway V2 authorization response.
+type APIGatewayV2CustomAuthorizerSimpleResponse struct {
+	IsAuthorized bool                   `json:"isAuthorized"`
+	Context      map[string]interface{} `json:"context,omitempty"`
+}
+
 // APIGatewayCustomAuthorizerPolicy represents an IAM policy
 type APIGatewayCustomAuthorizerPolicy struct {
 	Version   string

events/apigw_test.go

@@ -177,6 +177,67 @@ func TestApiGatewayCustomAuthorizerResponseMarshaling(t *testing.T) {
 	assert.JSONEq(t, string(inputJSON), string(outputJSON))
 }
 
+func TestAPIGatewayV2CustomAuthorizerSimpleResponseMarshalling(t *testing.T) {
+	var tests = []struct {
+		desc string
+		in   APIGatewayV2CustomAuthorizerSimpleResponse
+		out  string
+	}{
+		{
+			"defaults",
+			APIGatewayV2CustomAuthorizerSimpleResponse{},
+			`{"isAuthorized":false}`,
+		},
+		{
+			"without context",
+			APIGatewayV2CustomAuthorizerSimpleResponse{IsAuthorized: true},
+			`{"isAuthorized":true}`,
+		},
+		{
+			"context is nil",
+			APIGatewayV2CustomAuthorizerSimpleResponse{Context: nil},
+			`{"isAuthorized":false}`,
+		},
+		{
+			"context is empty",
+			APIGatewayV2CustomAuthorizerSimpleResponse{Context: map[string]interface{}{}},
+			`{"isAuthorized":false}`,
+		},
+		{
+			"context with basic types",
+			APIGatewayV2CustomAuthorizerSimpleResponse{Context: map[string]interface{}{"string": "value", "bool": true, "number": 1234}},
+			`{"isAuthorized":false,"context":{"string":"value","bool":true,"number":1234}}`,
+		},
+		{
+			"context with array",
+			APIGatewayV2CustomAuthorizerSimpleResponse{Context: map[string]interface{}{"array": []string{"value1", "value2"}}},
+			`{"isAuthorized":false,"context":{"array":["value1","value2"]}}`,
+		},
+		{
+			"context with map",
+			APIGatewayV2CustomAuthorizerSimpleResponse{Context: map[string]interface{}{"map": map[string]string{"key": "value"}}},
+			`{"isAuthorized":false,"context":{"map":{"key":"value"}}}`,
+		},
+		{
+			"context with nil value",
+			APIGatewayV2CustomAuthorizerSimpleResponse{Context: map[string]interface{}{"nil": nil}},
+			`{"isAuthorized":false,"context":{"nil":null}}`,
+		},
+	}
+
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.desc, func(t *testing.T) {
+			outputJSON, err := json.Marshal(tt.in)
+			if err != nil {
+				t.Errorf("could not marshal event. details: %v", err)
+			}
+
+			assert.JSONEq(t, tt.out, string(outputJSON))
+		})
+	}
+}
+
 func TestApiGatewayCustomAuthorizerResponseMalformedJson(t *testing.T) {
 	test.TestMalformedJson(t, APIGatewayCustomAuthorizerResponse{})
 }