DynamoDB allows us to store complex data structures and deeply nested objects, but this complexity isn’t free. In this post we take a look at how different Lambda configurations impact the read times from boto3. We examine how different resource configurations can improve the read time of the same item by more than a factor of 12.
Data modelling in NoSQL databases is different from what we’re used to in the relational world. In this article we’ll talk about the process of data modelling in DynamoDB, single-table design and how to build a basic data access layer using python. We’ll explore these concepts by building a product catalog for a simple webshop that supports different query patterns and basic inventory management.
Many Lambda functions are written in Python and use the AWS SDK boto3. Initializing your first boto3 client or resource can take a long time after a Lambda cold start. In this article we explore how much exactly and why it’s up to 10x faster on Lambdas with more memory.
Consistent Style Across Editors Sometimes, common themes occur if working on a project with multiple people and different development environments. One of the unexpected, time-consuming problems is related to editor configurations. But it is pretty easy to unify things, if you know where to look…
In this blog post I explain to you how to handle a particular class of errors with cross stack dependencies in the CLoud Development Kit.
Building a static website with Hugo and the CDK If you ever wanted to host your personal website or blog on AWS this article is right for you. We’re going to build a static website with Hugo, CodeBuild and CodePipeline and host it using CloudFront and S3. We will set up everything you need to build and deploy new versions of the Website.
In this post I’m going to show you how to use Cognito User Authentication in combination with a Docker app running in Fargate behind an Application Load Balancer and we’re going to build all this with the Cloud Development Kit (CDK). Why would you want to use this? You’re running your web application inside a docker container and don’t want to deal with user authentication.
Introduction Authentication is a problem almost every IT professional has had to deal with at some point in time. Doing it right isn’t easy. What I mean by right is balancing usability and security. AWS attempts to solve this problem with AWS Cognito, which is quite nice of them, because Authentication is exactly the undifferentiated heavy lifting most customers don’t want to deal with themselves. Unfortunately authentication is still a complex topic and Cognito is an abstraction layer for it, which makes it easier, but it’s a fairly low level abstraction conceptually in that you still need to understand most of the concepts involved in order configure it correctly.
