January 2019
Intermediate to advanced
520 pages
14h 32m
English
Content preview from Hands-On Microservices with Rust
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Loggers
The actual logger implementations that are contained in some crates are as follows:
- env_logger
- simple_logger
- simplelog
- pretty_env_logger
- stderrlog
- flexi_logger
- log4rs
- fern
It can be difficult to choose between these logger implementations. I recommend that you explore them on crates.io to learn how they differ. The most popular one is env_logger, which is the one that we are going to use. env_logger reads the RUST_LOG environment variable to configure logging and prints logs to stderr. There is also the pretty_env_logger crate, which is built on top of env_logger and prints logs with a compact and colorful format. Both use the same environment variable for configuration.
stderr is one of three standard streams—stdin, where your ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.