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LogEvent

Struct LogEvent 

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pub struct LogEvent { /* private fields */ }
Expand description

A log record being built. Add fields and an error, then emit.

Created by the level methods on Logger (info, warn, …). Nothing is logged until emit is called.

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impl LogEvent

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pub fn field<T: Serialize>(self, key: &'static str, value: T) -> Self

Attaches a structured field. A non-serializable value is skipped.

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pub fn error<E: Error>(self, error: &E) -> Self

Attaches an error: its type name, message, and source chain.

The source chain is bounded to [MAX_ERROR_CHAIN] entries so a pathological or deeply nested error cannot produce an unbounded log record. Note that an error’s Display/source output can carry sensitive data (a database driver may include a connection string); keep secrets out of error messages, since logged errors are not redacted the way 5xx client responses are.

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pub fn emit(self)

Emits the record at its level to the active subscriber.

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