This story is about how to make your service reliable and cheap. It’s not going to be a simple thing but trust me it’s worth of your effort.

What does profiling mean?

Well, it depends on the context, but for me, it’s the process which allows to deeply understand how the service works under the hood, how it behaves when put under the pressure and what will happen when the pressure is relaxed.

So I hope that the next question just popped up…

Why do we profile?

To make our service cost-optimal, resilient and to gain knowledge about our solution.

Cost-optimal solution

1. What resources do we need to run our…

You can use API Gateway in many ways. I would like to share with you one of my favourites usages. An Abstraction of a queue or event bus.

What are the benefits of such implementation?

1. Service is not aware of messaging implementation.
2. Service is not coupled with provider SDK.
3. Service can reuse already implemented an HTTP client.
4. Easy retry mechanism.
5. Testing is so much easier. You can use Wiremock!

Implementation

You can try to set up such a configuration using this tutorial and AWS console so it will give you a better understanding of the approach. …

So you’re starting to work with Terraform and would like to store the state in S3 bucket. Sounds good but how are you going to create the S3 bucket? You don’t want to use AWS Console to do that — you decided to have IaC and having first step breaking the rule is awkward at least. You can find a few articles and ideas how to deal with that and here I would like to present approach I tried.

What are our goals?

• No manual operations through AWS Console
• All resources managed by Terraform (includes state file in S3 bucket)

Step 1 — configure Terraform

Let’s start with our…