error

Writes a log message with severity ‘error’ (4).

error(message: unknown): void

Notes

• The specified message may be a string, a LazyString (the result of strf()), an Error instance, or any other value that can be converted to a string.
• For LazyString and AppException messages, placeholder values are included in the message data so that they can be stored separately in a structured log.

Examples

// Write a formatted log message
app.log.error(strf("User not found: %[name]", userData));

// Catch an error and log it
try {
  doSomethingDangerous();
} catch (err) {
  app.log.error(err);
}

Related

• class LogWriterA class that handles log messages, part of the global application context.