Internal Developer Platform

Developer-Defined Environments you own this product

This project is part of the liveProject series Internal Developer Platform on AWS
basic TypeScript • basic Git • basic Node.js • intermediate React.js (hooks and forms) (optional) • basic AWS (CodeBuild, DynamoDB)
skills learned
deployment pipelines with CodeBuild • define interfaces with JSON schema • build user interfaces with React.js
Daniel Li
1 week · 4-6 hours per week · INTERMEDIATE

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Look inside

You’re the sole DevOps engineer at BuildIT, a fast-growing digital agency that builds websites and applications for its clients. The company has an automated infrastructure with a simple user-friendly interface and user authentication system that constitutes an Internal Developer Platform (IDP). But as the IDP stands, one typo or missed configuration option can lead to application failure. Your task is to minimize these potential problems by creating a pipeline that parses BuildIT’s infrastructure CDKTF code and populates a DynamoDB table with the list of found environment types. You’ll use the entries in the database to populate a dropdown in the UI for selecting the environment type and a table of required configurations. When you’re done, you’ll have implemented client-side validation—and taken BuildIT’s IDP from rudimentary to robust.

This project is designed for learning purposes and is not a complete, production-ready application or solution.

book resources

When you start your liveProject, you get full access to the following books for 90 days.

project author

Daniel Li
Daniel Li is a generalist staff software engineer who has nearly a decade of experience spanning front-end, back-end, system administration, DevOps, and platform engineering. He’s the author of Building Enterprise JavaScript Applications, which explains how various tools in the JavaScript ecosystem work together. Daniel is a regular speaker at meetups and conferences, including PlatformCON.


This liveProject is for engineers interested in further automating infrastructure as code (IaC) practices, engineers working with AWS, DevOps engineers, and platform engineers. To begin these liveProjects you’ll need to be familiar with the following:

  • Basic Express.js
  • Basic AWS Console
  • Basic AWS CodeBuild
  • Basic Amazon DynamoDB
  • Basic Node.js
  • Basic TypeScript
  • Intermediate React.js
  • Formik
  • Basic JSON
  • Schema validation

you will learn

In this liveProject, you’ll learn to implement client-side validation to minimize potential for application failure.

  • Use JSON Schema to specify validation rules for JavaScript objects
  • Create a CodeBuild project that parses your infrastructure code and use it to populate a DynamoDB table
  • Dynamically generate form fields on the web application, based on data from DynamoDB (the solution code uses the Formik library)
  • Validate JavaScript objects using Ajv JSON Schema validator


You choose the schedule and decide how much time to invest as you build your project.
Project roadmap
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book resources
Get full access to select books for 90 days. Permanent access to excerpts from Manning products are also included, as well as references to other resources.

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