115thAirhacksQ&A.md

115thAirhacksQ&A.md

Ask questions and see you at October 2nd, 8 pm CET: youtube.com/c/bienadam

Also checkout recent episode:

Please keep the questions as short and as concise as only possible. Feel free to ask several, shorter questions. I will also cover some questions in my "shorts" youtube.com/@bienadam/shorts between the shows.

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I watched your session about Fat Lambdas. As I understood you can run entire Quarkus microservice as one lambda. I understand that it's better to use Dynamo in AWS, but if we have to use Postgres, how we can replace connection pooling in Quarkus application with RDS Proxy or something else?

Hello Adam.
What do you think about Jakarta Data specification? How can we use it with BCE?

Thank you.

Hi Adam!
What do you think about using database ids on the REST API? I am trying to keep them out of my domain models as I consider them an implementation detail. Instead I try to use business keys. In case you do the same, how do you handle composite keys on the REST API?

Another question on identifiers: When I need to generate an identifier and I cannot use a database sequence (e. g. because I am on a client), then one option is using UUID. Now a colleague pointed me to ULID. What do you think about UUID vs. ULID, do you use it in your projects?

On AWS, when to use DocumentDB vs. DynamoDB vs. AuroraV2? What are your criteria for picking one of them because it seems that many developers are defaulting to relational database systems.

On AWS, when to use SQS vs. SNS vs. Kinesis? I have a use case where I need to notify a client application about data changes and I have different clients that are not allowed to see each others notifications. Would EventBridge also be an option to send events to client applications?

HI Adam

Is it possible to use S3 bucket as source from CodeBuild which has a VPC access. By default codebuild was working perfectly with S3, then I add codebuild to VPC and connection to S3 stop working. I added NAT gateway and I manage to get access back. Can I avoid NAT somehow - to reduce costs. Maybe use VPC endpoints are the solution?