‼️ NOTICE: grantInvoke on SingletonFunction fails with "No child with id"

[nija-at]

Please add your +1 👍 to let us know you have encountered this

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Status: FIX IDENTIFIED

Overview:

Calling grantInvoke on SingletonFunction produces the error No child with id: ....

This bug was introduced in version 1.39.0.

Workaround:

No workaround available

Solution:

PR for the fix - #8296

Related Issues:

#8240

[nija-at]

Reproduction code -

import { ServicePrincipal } from '@aws-cdk/aws-iam';
import { Code, Runtime, SingletonFunction } from '@aws-cdk/aws-lambda';
import { App, Stack } from '@aws-cdk/core';

const app = new App();
const stack = new Stack(app, 'mystack');

const fn = new SingletonFunction(stack, 'fn', {
  code: Code.fromInline('foo'),
  runtime: Runtime.NODEJS_12_X,
  handler: 'index.handler',
  uuid: '92e0bbf2-10d2-427c-9f79-79f671303428',
});

fn.grantInvoke(new ServicePrincipal('events.amazonaws.com'));

Regression introduced in 1.39.0.

[nija-at]

Bug introduced here - 1819a6b#diff-73cb0d8933b87960893373bd263924e2

[nija-at]

PR for the fix - #8296

[shivlaks]

1.42.1 has been released and includes the fix for this issue.