Is there a way to subscribe an `aws lambda Function` instanc

Question

Is there a way to subscribe an `aws lambda Function` instance to an SNS topic that was created external to a pulumi stack The topic ARN would be passed in as a config parameter i e an instance of `aws sns Topic` is not immediately available

modern-diamond-82589 · Answer

`aws sns TopicSubscription` is where I started my search but the problem with it is that `aws sns TopicSubscriptionArgs topic` is required to be of type `pulumi Input lt aws sns Topic gt ` Right now I am wishing it could be of type `pulumi Input lt aws sns Topic | aws ARN gt `

lemon-spoon-91807 · Answer

i think you could do this by doing aws sns Topic get

lemon-spoon-91807 · Answer

to create a pulumi resource instance for an existing aws topic

lemon-spoon-91807 · Answer

you can then subscribe to a lambda off of that topic

modern-diamond-82589 · Answer

I m looking into that as well

modern-diamond-82589 · Answer

It seems that that first argument `name` is arbitrary The second arg `id` would be the ARN But I m getting an error `InvalidParameter Invalid parameter TopicArn` I suspect that I need to provide a custom provider to `aws sns Topic get ` because the topic is in a different region

lemon-spoon-91807 · Answer

that sounds reasonable

modern-diamond-82589 · Answer

First result Using `aws sns Topic get ` works when the topic is found in the same region as the stack s default

modern-diamond-82589 · Answer

Final result It works across regions as long as an `aws Provider` representing the foreign region is supplied to both `aws sns Topic get ` and `new aws sns TopicSubscription `

lemon-spoon-91807 · Answer

nice