middy VS aws-sdk-js

In many cases, you will have to write the same authorization code in multiple functions. For example, you might want to check that the user is in the requested organization. You can share this code in a middleware. If you are using AWS Lambda, you can rely on middy.

Adding the is-test flag to our object metadata gave us our way of passing some kind of test context into our workload. The next step was to make the Lambda Function capable of discovering the context and then using that to control how it behaves under test. For this we used Middy.

I also decided to use the middy library to add CORS management to our lambda function. This will allow us to call our lambda function from our frontend, without having to worry about CORS.

Is there any equivalent to Node based https://middy.js.org/ for Golang?

And if your requirements were to change at a later date, it’s straightforward to swap out SSM Parameter Store with Secrets Manager there and then. Especially if you’re accessing the relevant service through a middleware layer such as Middy for javascript Lambda functions.

This function uses the Middy middleware engine to handle unhandled errors and add CORS headers in the response.

I mean I'm literally building an AWS lambda function that outputs HTML when it's called via API Gateway. So someone hits https://mydomain.com/mycoolpage, then the MyCoolPage AWS Lambda function is executed and outputs whatever.

If you're interested, I use https://middy.js.org/ as a middleware engine for my AWS lambda functions which I find helpful.

I use the open sourced serverless framework for doing deploys https://www.serverless.com/

middy for lambda-side middleware

That is it from the CDK side. Now let us create the handler and retrieve that secret. I like to use middy which describes itself as "stylish Node.js middleware engine for AWS Lambda". It offers some helpful middlewares like ssm which will help us retrieve and cache values from SSM Parameter Store. (Middy provides various other official middlewares including one for Secrets Manager.) I prefer a middleware for this because it keeps the code for retrieving the secret out of your handler which should deal with actual business logic.

⚠️Here's the issue: https://github.com/aws/aws-sdk-js/issues/4519

The updates could be parsed from the github repo's CHANGELOG files (ex: javascript, java, python). I'm picturing an RSS feed generated for a specific language and module (ex: python s3, javascript s3, java sqs)

Another option is to look at the changelog for the AWS SDK. Because the AWS SDK has to have support for pretty much every service ever it gets a new version and a changelog whenever new things are added. I like to refer to this changelog from time to time: https://github.com/aws/aws-sdk-js/blob/master/CHANGELOG.md

From this thread I double-checked that all query strings and the origin, Access-Control-Request-Method and Access-Control-Request-Headers are sent to the origin (I ran into some signature mismatch issues before that were solved with this origin request policy).

Now that you have installed MinIO server, let's use it on your project. I will be using the official S3 JavaScript SDK as example. But should be applicable for all other S3 SDKs.

The client is only available for Java and Python. https://github.com/aws/aws-sdk-js/issues/1164

The best way I've found to locate the X-Amz-Target value is from this AWS support ticket where it is recommend to look at the SDK docs for the service and locate the targetPrefix field in the metadata.

I wonder if there's a way to only bring in the S3 SDK from aws-sdk to help trim the file size. I believe there might be a way to import only certain files, maybe something like this?

Due to performance reasons, one of the goals was to switch to rollup for bundling all our applications, however, we use webpack due to rollup’s known issues with aws-sdk.