Logging is an important, yet overlooked, practice in the software development life cycle. It is often integrated as an afterthought on facing the consequences of latent invalid states and errors that accumulate over time in software systems. Any moderate sized project should have logging support from the initial days of development.
In this chapter, we'll get to know why setting up logging in an application is important, the need for a logging framework, how to approach logging, and what crates are available in the Rust ecosystem to enable programmers to leverage the power of logging in their applications.
In this chapter, we will cover the following topics:
- What is logging and why do we need it?
- The need for logging frameworks
- Logging frameworks and their features
- Exploring logging crates in Rust
