Step 4: Requests sent from clients are HTTP
requests. HTTP stands for HyperText Transfer Protocol. The two main
types of requests are get and post. A get request is used to get
information from a server. For example, when you visited this page,
you sent a get request to Mr. Code's server, and the server sent back
HTML, CSS, and JavaScript for your browser to render. A post request
is used to send information to a server. For example, when you signed
into this website, you sent a post request containing your username
to Mr. Code's server, and the server verified your username. To have
your app receive get requests, add the following:
app.get()
The get method takes in two arguments, which will be discussed in
the next several steps.