– Going from a self hosted version to self hosted + hosted SAAS app

– Motivation for using Node and React

– Docker is being used for the test runners

– A mono repo with Next.js, GraphQL and Apollo

– Balancing your unit tests with end to end tests

– Using noVNC and websockets to link the test runner output to the browser

– Spinning up separate Docker containers for each test runner

– Next.js, Webpack, React and Typescript make up the front-end JS

– Efficiently sending VNC data over websockets

– Handling usage limits with the API server

– PostgreSQL is their primary database and they’re using Pipedream

– Stripe is being used to handle payments and SendGrid to send emails

– Everything is hosted on a combo of Netlify, Vercel, Azure and DigitalOcean

– Scaling up and down Azure containers with custom Node scripts

– Moving to Kubernetes in the future but only after it was deemed worth it

– The current deployment strategy pre-Kubernetes

– Jest tests are written and the code is linted with ESLint

– Database backups and the front-end is deployed to 2 hosts for redundancy

– Datadog handles monitoring and logging with Slack for notifications

– Keeping your assets fresh in a SPA or a long lived app in a browser tab

– Best tips? Focus on getting something out and learning from it

– Toggling feature flags with ENV variables and database fields

– Building the selector generator was a tricky problem to solve

– Check out https://www.qawolf.com/, the app is on GitHub and you can email Jon