Cloud9 - AWS Resources vs AWS Toolkit - API Gateway - Lambda Testing

Question

AWS Toolkit is replacing the old AWS Resources part of Cloud9.
I use this to develop Lambda functions invoked via API Gateway, using CloudFormation/SAM templates.
With AWS Resources, I can test via "Run API Gateway Local" right in my Cloud9 IDE.
From what I can tell, this is not possible with AWS Toolkit, and I would have to test the Lambda directly (w/o mimicking the request as coming from API Gateway).
Can anybody tell me how I can accomplish the equivalent of "Run API Gateway Local" with AWS Toolkit?
Or is this a great feature that is just being taken away?

Thanks.

Answer

Thank you @oyku. I did figure that out. However, there are 3 things about the new AWS Toolkit that are just not good:
1) It takes about 40s to run a single test (every time)
2) AWS Toolkit somehow loses credentials pretty often - perhaps every 5 or 10 minutes. This causes any DynamoDB/other AWS requests to fail with security issues.
     - A browser refresh fixes this, but it is extremely annoying.
     - AWS CLI, etc. all continue to work fine. So the issue seems to be specific with AWS Toolkit.
3) Every time I use AWS Toolkit to run/test, it creates a ~500MB directory in /tmp/aws-toolkit-vscode . If I leave my instance running for a long time, this quickly fills up disk space and I have to manually remove all of these temp files.

Do you have any insight or advice to work around or fix these issues?
Thanks!

Answer

Hi @john_pk, you can follow "Running and debugging local Amazon API Gateway resources" section in this [Running and debugging serverless applications](https://docs.aws.amazon.com/cloud9/latest/user-guide/serverless-apps-toolkit.html#sam-run-debug) guide. You will need to create a new launch configuration as stated. Please let us know if that doesn't work for you.

Cloud9 - AWS Resources vs AWS Toolkit - API Gateway -> Lambda Testing

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