Key Concepts of Static Servers: Static Files: These are files that do not change dynamically on the server side and are served as-is. Examples include HTML, CSS, JavaScript, images, fonts, and videos.

Express.js: A popular Node.js web framework that makes it easy to set up a static server. It provides middleware to serve static files effortlessly.

Creating and implementing middleware:

• Running middleware on entire server. We created a logger function and stored it in its own file (within a middleware folder), and imported it into our server.js. Then wrapped it in app.use(logger). Now any time we hit the server with any kind of method, the function is called.

Creating a custom error handler w/ json response.

creating error.js

Our errorHandler middleware is called when we use const error = new Error(A post with the ID of ${id} was not found); in posts.js

To be more specific with error message, we can access our error message (found in posts.js) in our errorHandler middleware via the error parameter we are passing in as an argument.

Using colors dependency to make logging more clear