When working with AWS Lambda functions, unit testing can be a challenge due to the need to mocking all external dependencies, including AWS SDK clients. But also to provide the correct input when calling your Lambda handler functions. To make this easier, I created a small npm package that provides …
Sometimes you run into a weird issue that is hard to debug. This was one of those times. I was working on a Lambda function that was supposed to retrieve a secret from AWS Secrets Manager. However, I kept getting random InvalidSignatureException errors in production.
Recently I’ve been using AWS Secrets to retrieve API keys which are needed to access external API’s, however, this turned out to be a more expensive service than we initially thought when starting.
