How to write Express.js middleware with TypeScript
Hands-OnYou can extend your Express.js server easily with custom middleware. All you have to do is to write a function that accepts three parameters (req
, res
, next
).
You can extend your Express.js server easily with custom middleware. All you have to do is to write a function that accepts three parameters (req
, res
, next
).
When developing class functions that don’t rely on an internal state, it’s a good idea to turn them into static methods. This can be easily done by adding the keyword static
to your function’s declaration.
Setting up a TypeScript project with Node.js takes only a few minutes. Here is how to do it the fastest way by just using npm
and yarn
.