In software development, testing plays a huge role. It helps developers track and eliminate bugs in the code which makes clients happier and wealthier. Who would like to buy a product full of issues?

Today, I would like to explain how to use GraphQL in parallel to TypeScript. GraphQL is a very interesting technology invented by Facebook in 2012 and presented to the audience in 2015. It's used for getting specific data by the client.

Few weeks ago I was working on a task that was to rewrite the service from JavaScript to TypeScript. It was very challenging for me. I spent a lot of time to find the differences between those two languages.

Nowadays JavaScript is the most popular technology. You can write desktop apps, well designed websites or even fast and efficient backends. Let's focus on backend.

Recently I found some very interesting articles related to popular npm packages (request and axios - both are simple HTTP clients) and how they are dying.

Some time ago we discussed with the team how we can improve the quality of code in our services and what we can do to increase our skills. So, from to time, we had a situation that someone uses a method in the not correct way. I mean too many or too few parameters or invalid types were passed to the method.