Rust Tracing Practices

Event Recording

• Use level-specific macros for appropriate visibility: info!, debug!, trace!, warn!, error!
• Provide structured data as named arguments to facilitate automated processing and filtering
• Format log messages consistently, beginning with verbs in present tense
• Include relevant context through key-value pairs:

tracing::info!(user_id = user.id, action = "login", "User logged in successfully");
tracing::error!(error = %e, user_id = user.id, "Failed to authenticate user");

Instrumentation