If you are using CRA, first update to CRA2 if already not updated. Then you can wait few weeks(I would say not couple of months). And if your team has extra bandwidth to do the migration, after 1 month is fine I would say.

Kyle Simmonds , Yes of course. My article does not cover all the cases. So in a production app, generally we should have 3 types of actions- REQUEST SUCCESS FAILURE We should also implement these with our data flow.

It's always better to write test from the beginning. When the app will be bigger, it would be hard to write test newly. and I think this is one of the reasons a lot of teams dont wanna start writing tests later. For react tests, JEST is a good option and if you wanna do E2E, you can try CYPRESS too https://jestjs.io/ https://www.cypress.io/

Hi there! I am Shahjada. Tech enthusiast, Software Engineer/Architect. Having experience of more than 7 years, I currently work on JavaScript stack mainly with React and NodeJS ecosystem. I am also a community speaker, coach, and I love software engineering sector a lot! http://shahjada.me https://github.com/destromas1