Anyone who wants to create an API using Express can learn the tutorial in a really short time. It has the advantage of being able to handle AWS VPC, which is not well handled, and it uses MySQL, PostgreSQL, and MongoDB, which are high-ranking databases, so I think I will be able to choose and use various databases while working on my project later. I felt that it was a good lecture where I could learn and get results at the same time by following the lecture. 👍