Serverless

Are we getting infrastructure all wrong in the Serverless era?

In my last conversation with Ben Kehoe on the real-world serverless podcast, he said something profound and it’s been bugging me ever since. And now I’m ready to infect you with this brain bug! You’re welcome ;-) On the infrastructure-from-code trend, Ben said: “I think infrastructure-from-code is wrong on all counts. I don’t think we should …

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Testing Step Functions: how to skip time when testing Timeout and Wait states

When I previously wrote about testing Step Functions, I gave you a general strategy that consists of: Component tests that target the Lambda functions (specifically, the custom code you wrote in those functions). End-to-end tests that execute the state machine in the cloud. Local tests using Step Functions Local where you can use mocks to …

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No, you don’t need to test every line of your CDK application

Several people have asked me about unit testing CDK applications recently. The questions often go something like this: “Because it can be in Python or TS, people bring up unit testing for CDK, whereas it’s not even thought about with Serverless Framework, SAM or Terraform. What are your thoughts on this?” “I have so many …

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Are You Ready for This? Top 5 Earth-Shattering Pros and Cons of AWS CDK

Ask most developers why they like the CDK and they will say “It lets me write infrastructure in my favourite programming language”. That’s nice, but why should that be a consideration for an Infra-as-Code (IaC) tool? That’s like saying “I like Strepsils because it tastes like candy”. ps. if you mention candy, pharmacy staff would …

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The Old Faithful: Why SSM Parameter Store still reigns over Secrets Manager

Managing and securing application secrets is a crucial part of any cloud-native application. AWS offers two primary services: the Systems Manager (SSM) Parameter Store and the more recent Secrets Manager. You might think Secrets Manager is the better choice for managing secrets because it’s a newer service and offers more advanced features such as cross-region …

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Implementing Magic Links with Amazon Cognito: A Step-by-Step Guide

Last week, we looked at implementing passwordless authentication using one-time passwords (OTPs) using Cognito [1]. Another popular passwordless authentication method is magic links where: The user initiates the sign-in process by entering their email in your application. They receive an email with a time-limited URL. The user clicks on the URL and is authenticated into …

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Passwordless Authentication made easy with Cognito: a step-by-step guide

Password-based authentication has long been the norm for securing user accounts. However, it is becoming increasingly clear that password-based authentication has several drawbacks. Such as the risk of password theft, the need for users to remember complex passwords, and the time and effort required to reset forgotten passwords. Fortunately, more and more websites have started …

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