AWS
Lambda
OpenAPI

How to implement a Lambda backend based on OpenAPI

AWS
Terraform
OpenAPI

Interactive API documentation using Swagger UI deployed with Terraform

AWS
IAM

How to use a break-glass role for sensitive admin tasks

AWS
IAM

IAM policy evaluation logic explained with examples

All posts

Books & Courses

Learn S3 signed URLs

Signed URLs allow selective access to protected content by generating a signature on the backend which the clients can use to download the file directly from S3. This moves the heavy lifting from the servers or function you manage to a cloud-scale object storage. Implemented correctly, it provides a secure and serverless-friendly way to handle files.

Learn:
  • It works well in a serverless environment
  • Implemented correctly, it is a secure way to give access to protected content
  • It works for file uploads too
Free
Email course
Introductory

AWS S3 signed URLs email course

Learn how to implement a secure, robust, and serverless-friendly file distribution solution from this 8-part email course.

  • Why the serverless architecture needs a new way of handling files
  • How to use NodeJs backend to generate a signature
  • How to use the URL on the frontend to download files

  • If Mailchimp says you are already signed up to the list then update your profile by following the instructions and check the "S3 signed URLs" course checkbox.
  • If you subscribe to this course you also sign up to our mailing list (Why is that?).
Ebook
Comprehensive

AWS S3 signed URLs handbook

Dive deep into the technical details of implementing signed URLs. This book starts with the basics but covers the details so you'll know what is going on behind the scenes. It also covers the security aspect of each configuration.

Learn:
  • How signed URLs work with IAM to provide access control
  • How to use signed URLs with other AWS services, such as CloudFront and KMS
  • What are the security implications of using signed URLs
Get the book

Learn Terraform

Terraform allows you to describe the infrastructure just like you write code. With a recipe it uses the AWS APIs to automatically run and configure resources. With it, you can deploy and destroy your app even if it uses several AWS services in a fully automated way.

  • Run identical environments for easy experimentation
  • Clean up all associated resources automatically when they are not needed
  • Faster and safer than using the Console to manually set up resources
Video course
Deep dive

Manage AWS Lambda functions with Terraform

A Lambda function allows a lot of configuration but it's not easy to see just from the documentation which options are important and what is the best way to set them. Terraform also brings some complications into the mix, such as how to best define the code to upload to the Lambda service and how to attach permissions to the function.

This course walks you through the important parts of configuring a Lambda function and shows the consequences of each step

Learn:
  • How to define the name, the code, and the permissions for a function using best practices
  • What are the effects of each argument, such as how the memory setting affects CPU
  • How to run a build script from Terraform before deploying the stack
Get the course

Learn CloudFront

CloudFront is AWS's CDN solution that can speed up content delivery, especially when visitors are far from your servers. It utilizes a global network of edge locations connected by the AWS backbone, a dedicated web of fiber-optic cables providing faster connectivity.

  • Bring connections closer to users using the edge locations
  • Provide a single entry point for your architecture, allowing a single TCP connection to multiple backend services
  • Implement path-based routing
  • Utilize the proxy cache to eliminate the geographic effect for static content
Free
Email course
Introductory

CloudFront essentials email course

Learn how to take advantage of AWS's global content delivery infrastructure with the CloudFront service.

  • How CloudFront brings connections closer to visitors and make your webapp faster
  • How path-based routing works and how to configure it
  • How to cache content on the edge locations

  • If Mailchimp says you are already signed up to the list then update your profile by following the instructions and check the "CloudFront essentials" course checkbox.
  • If you subscribe to this course you also sign up to our mailing list (Why is that?).
Video course
Introductory

The cloud architect's guide to CloudFront

CloudFront configuration is based on origins that are your backend services, such as EC2 servers, API Gateways, or S3 buckets, and cache behaviors that are the configuration how the service handles an incoming request.

To successfully set up CloudFront, you need to understand how routing and caching works. This course walks you through each configuration options, and how they affect how the requests work.

Learn:
  • How to set up routing and caching properly
  • How to debug a CloudFront distribution
  • Use your own domain with a valid SSL certificate
Get the course

Learn asynchronous programming in Javascript

Asynchronous programming is everywhere in Javascript. Whenever you need to read a file from the filesystem, make a network request or use an external process, you can not use normal functions. Asynchronicity is event-based and that relies on callback functions. Async/await builds on Promises, which make it a lot easier to write async code.

  • Async functions make async/await a first-class citizen in the language
  • Promises allow a standardized and easy-to use abstraction over callbacks
  • Errors are propagated in async calls
Free
Email course
Introductory

Async functions in Javascript

Learn how to use async functions to write a modern and clean async workflow.

Learn:

  • How async functions work and how to use the await keyword
  • How to construct Promises
  • How error propagation works in an async environment

  • If Mailchimp says you are already signed up to the list then update your profile by following the instructions and check the "Async functions in Javascript" course checkbox.
  • If you subscribe to this course you also sign up to our mailing list (Why is that?).