Using Gorilla handlers middleware for logging

The Gorilla handlers package provides various pre-written middleware for common tasks. The most important ones in the list are:

• LoggingHandler: For logging in Apache Common Log Format (CLF)
• CompressionHandler: For zipping the responses
• RecoveryHandler: For recovering from unexpected panics

Here, we use the LoggingHandler middleware to perform API-wide logging. First, install this library using go get, like this:

go get "github.com/gorilla/handlers"

This logging server enables us to create a server-like a log with time and options. For example, when you see apache.log, you find the log in a standard format, as shown in the following code block:

192.168.2.20 - - [28/Jul/2006:10:27:10 -0300] "GET /cgi-bin/try/ HTTP/1.0" 200 3395
127.0.0.1 - - [28/Jul/2006:10:22:04 -0300] "GET / HTTP/1.0" 200 2216

The format...