The Home Page on Sebastian Döll | Engineer with decades of experience

Domain Architect

Wed, 01 Nov 2023 00:00:00 +0100

Moved back to Jena, joined an 175 year old technology leader 🦄.

Head of Internal Services

Mon, 01 Aug 2022 00:00:00 +0100

Leading the internal services team, building and maintaining the internal tools and services for the company.

Senior Software Engineer

Thu, 01 Apr 2021 00:00:00 +0100

Made the life more then 150 million devlopers easier by building tools and services for them.

Module Resolution in Large Projects with TypeScript

Fri, 26 Mar 2021 00:00:00 +0000

This post explains how to use custom paths for efficient Module Resolution in large TypeScript projects.

Composition in Next.js Static Properties

Wed, 24 Mar 2021 00:00:00 +0000

Composition is a method to write re-usable segments of code. This is achieved by constructing objects of full behavior by using objects with particular behavior.

It seems like “composition over inheritance” is the new motto. Everyone’s talking about it, and that’s not strange since composition gives you more flexibility by composing functionality to create a new object, while inheritance forces you to extend entities in an inheritance tree.

In the case of getStaticProps the full behavior is the complete object of props a page needs to be rendered. The particular object is the behavior that fetches a particular property in in the props.

The State of Go Plugins

Wed, 24 Mar 2021 00:00:00 +0000

Learn about the different approaches to pluggable interfaces in Go.

Deploy AWS CloudFormation stacks with GitHub Actions + React Example

Sun, 21 Mar 2021 00:00:00 +0000

You want to deploy your infrastructure with GitHub Actions?

I have published AWS CloudFormation Action for GitHub Actions and walk you through the example of a React app in an article on the AWS Open Source Blog.

You can also use the Create React App Template for AWS Amplify to shortcut the process to connect the app to the AWS Amplify Console with AWS CloudFormation.

👇

1

npx create-react-app my-app --template amplify-typescript

Go build!

The Power of TypeScript for GraphQL Union Type

Mon, 15 Mar 2021 00:00:00 +0000

GraphQL is great. Code generating types for TypeScript is easy. GraphQL supports introspection. This means a GraphQL API provides information about the described schema.

Using the GraphQL CLI and the GraphQL Code Generator generating types for a graphcms is really handy.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25


# GraphCMS API
schema: https://api-eu-central-1.graphcms.com/v2/xxxxx/master
overwrite: true
documents: ./src/graphql/**/*.graphql

# Format files

extensions:
 codegen:
 hooks:
 afterAllFileWrite:
 - eslint --fix
 generates:
 ./schema.graphql:
 plugins:
 - schema-ast
 src/generated-types.tsx:
 plugins:
 - typescript
 - typescript-operations
 - typescript-react-apollo
 config:
 withHOC: false
 withComponent: true
 withHooks: true

When you add to it the capability to create types for your queries, this is really powerful. A powerful feature of GraphQL are union type. A field can contain different types. For example a Page or Post can can be returned a reference for another page.

Solutions Architect

Fri, 01 Nov 2019 00:00:00 +0100

Helped builders to use AWS services to create new products and services.

Senior Software Engineer

Mon, 01 Oct 2018 00:00:00 +0100

Building network products in the cloud ☁️ for developers and startups.

Lead Engineer

Thu, 01 Sep 2016 00:00:00 +0100

Lead engineering of a product platform.

Technical Lead

Wed, 01 Apr 2015 00:00:00 +0100

Moved back to Jena, joined an 175 year old technology leader 🦄 #

Research Fellow

Mon, 01 Nov 2010 00:00:00 +0100

Doing research in economic theory.

About

Mon, 01 Jan 0001 00:00:00 +0000

👋 Heyyyy-yo! #

Sebastian here, I’m an engineer with decades of experience in software development, cloud computing, and digital transformation 🦄 from Germany 🇩🇪.

I’m happiest when I’m creating, learning, exploring and thinking about how to make things better.

🥳 Fun facts about me #

There are a few things that I love to do in my free time. Here are some fun facts about me: