fix(events): correct token resolution in RuleTargetInput (#3127)

Fixes #3119
aws · Jun 30, 2019 · a20c841 · a20c841
1 parent d3a417e
commit a20c841
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Showing 2 changed files with 39 additions and 2 deletions.
diff --git a/packages/@aws-cdk/aws-events/lib/input.ts b/packages/@aws-cdk/aws-events/lib/input.ts
@@ -148,7 +148,7 @@ class FieldAwareEventInput extends RuleTargetInput {
       }
 
       public resolveToken(t: Token, _context: IResolveContext) {
-        if (!isEventField(t)) { return t; }
+        if (!isEventField(t)) { return Token.asString(t); }
 
         const key = keyForField(t);
         if (inputPathsMap[key] && inputPathsMap[key] !== t.path) {

diff --git a/packages/@aws-cdk/aws-events/test/test.input.ts b/packages/@aws-cdk/aws-events/test/test.input.ts
@@ -1,4 +1,5 @@
 import { expect, haveResourceLike } from '@aws-cdk/assert';
+import { User } from '@aws-cdk/aws-iam';
 import cdk = require('@aws-cdk/core');
 import { Duration, Stack } from '@aws-cdk/core';
 import { Test } from 'nodeunit';
@@ -27,6 +28,42 @@ export = {
       }));
       test.done();
     },
+
+    'can use token'(test: Test) {
+      // GIVEN
+      const stack = new Stack();
+      const rule = new Rule(stack, 'Rule', {
+        schedule: Schedule.rate(Duration.minutes(1)),
+      });
+      const user = new User(stack, 'User');
+
+      // WHEN
+      rule.addTarget(new SomeTarget(RuleTargetInput.fromObject({ userArn: user.userArn })));
+
+      // THEN
+      expect(stack).to(haveResourceLike('AWS::Events::Rule', {
+        Targets: [
+          {
+            Input: {
+              'Fn::Join': [
+                '',
+                [
+                  '{\"userArn\":\"',
+                  {
+                    'Fn::GetAtt': [
+                      'User00B015A1',
+                      'Arn'
+                    ]
+                  },
+                  '\"}'
+                ]
+              ]
+            }
+          }
+        ]
+      }));
+      test.done();
+    },
   },
 
   'text templates': {
@@ -107,4 +144,4 @@ class SomeTarget implements IRuleTarget {
   public bind() {
     return { id: 'T1', arn: 'ARN1', input: this.input };
   }
-}
+}