The LoggingSystem is a global facility where the default logging backend implementation (LogHandler) can be configured. LoggingSystem is set up just once in a given program to set up the desired logging backend implementation.
enum LoggingSystemimport LoggingA Logging API for Swift.
struct LoggerA Logger is the central type in SwiftLog. Its central function is to emit log messages using one of the methods corresponding to a log level.
static var metadataProvider: Logger.MetadataProvider? { get }System wide MetadataProvider that was configured during the logging system’s bootstrap.
@preconcurrency static func bootstrap(_ factory: @escaping (String) -> any LogHandler) bootstrap is a one-time configuration function which globally selects the desired logging backend implementation. bootstrap can be called at maximum once in any given program, calling it more than once will lead to undefined behavior, most likely a crash.
@preconcurrency static func bootstrap(_ factory: @escaping (String, Logger.MetadataProvider?) -> any LogHandler, metadataProvider: Logger.MetadataProvider?) bootstrap is a one-time configuration function which globally selects the desired logging backend implementation.
import ConsoleKitTerminalConsoleKitTerminal provides utilities for interacting with a console in a Swift application. It provides:
static func bootstrap(console: any Console, level: Logger.Level = .info, metadata: Logger.Metadata = [:]) Bootstraps a ConsoleLogger to the LoggingSystem, so that logger will be used in Logger.init(label:).
static func bootstrap(console: any Console, level: Logger.Level = .info, metadata: Logger.Metadata = [:], metadataProvider: Logger.MetadataProvider? = nil) Bootstraps a ConsoleLogger to the LoggingSystem, so that logger will be used in Logger.init(label:).
static func bootstrap(fragment: some LoggerFragment, console: any Console, level: Logger.Level = .info, metadata: Logger.Metadata = [:], metadataProvider: Logger.MetadataProvider? = nil) Bootstraps a ConsoleFragmentLogger to the LoggingSystem, so that logger will be used in Logger.init(label:).
import VaporVapor is a framework for building server applications, APIs and websites in Swift. It provides a safe, performant and scalable foundation for building large complex backends.
static func bootstrap(from environment: inout Environment) throws @preconcurrency static func bootstrap(from environment: inout Environment, _ factory: (Logger.Level) -> ((String) -> LogHandler)) throws