Hello guys I am trying to wrap my head around using SSM in o Serverless Stack #help

Hello guys, I am trying to wrap my head around usi...

Roberto Novelo

01/04/2022, 3:06 AM

Hello guys, I am trying to wrap my head around using SSM in order to inject Cognito pool environment variables into the Next.js construct. Is there a complete example for this? I see https://serverless-stack.slack.com/archives/C01JG3B20RY/p1634575874311200?thread_ts=1633529817.256700&cid=C01JG3B20RY but points 2 & 3 I do not quite understand ( I’ll go dig more into SSM construct examples as well ). I am not super experienced using SST nor CDK but I have a working CDK version (creating a cognito user /identity pools and setting IAM permissions) but I was wondering: If I try to mix my CDK stack with SST, will I be able to reference the variables ( e.g.

UserPool.userPoolId

from

@aws-cdk/aws-cognito)

at build time? The CDK code I have right now only works because I am deploying the next.js site separately from the cdk backend, using the outputs json file generated from the outputs flag. P.D. Thanks to the SST team for the wonderful tool! I really think SST is the way!

Frank

01/04/2022, 11:06 AM

Hey @Roberto Novelo, thanks for the kind words!

Frank

01/04/2022, 11:06 AM

I just put together a sample repo here https://github.com/fwang/sst-load-ssm

Frank

01/04/2022, 11:09 AM

1. It creates an

AuthStack

with a Cognito user pool and an SSM param with the user pool id 2. It then fetches the SSM value for the user pool id 3. It then creates a

WebStack

, currently just

console.log

the user pool id

Frank

01/04/2022, 11:10 AM

Note that on when building for the first time (the SSM hasn’t been deployed in the

AuthStack

), the user pool id defaults to

placeholder

Frank

01/04/2022, 11:10 AM

Let me know if this makes sense

Roberto Novelo

01/04/2022, 3:15 PM

Wow, thanks a lot! Just what I needed 🙏

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