Creates a new Config, yields it for configuration, and returns it. Typically you should use Logit.configure instead, which also applies the configuration.

Adds a backend to the default tracer.

Creates the default tracer if it doesn't exist. For most applications, use #console or #file methods instead, which call this internally.

Registers a named tracer.

Most applications only need the default tracer, but you can create additional named tracers for advanced use cases like multi-tenant logging.

Binds a namespace pattern to a log level for a specific backend.

This allows fine-grained control over which namespaces (classes) log at which levels. More specific patterns take precedence over less specific ones.

Pattern syntax:

• MyApp::* - matches any class directly in MyApp
• MyApp::** - matches any class in MyApp or any nested namespace
• MyApp::Http::* - matches classes in MyApp::Http

console = config.console

# Only log warnings and above from database classes
config.bind("MyApp::Database::*", Logit::LogLevel::Warn, console)

# But log everything from the query builder
config.bind("MyApp::Database::QueryBuilder", Logit::LogLevel::Debug, console)

Finalizes the configuration by setting the default tracer. Called automatically by Logit.configure.

Adds a console backend that writes to STDOUT.

The console backend uses Formatter::Human by default, which produces colorized, human-readable output suitable for development.

• level: Minimum log level (default: Info)
• formatter: Output formatter (default: Human)
• buffered: Whether to buffer output (default: false for immediate display)

Returns the created backend for further configuration (e.g., namespace bindings).

config.console(level: Logit::LogLevel::Debug)

Name of the default tracer used by instrumented methods.

Name of the default tracer used by instrumented methods.

Adds a file backend that writes to the specified path.

The file backend uses Formatter::JSON by default, which produces structured JSON output suitable for log aggregation systems.

• path: Path to the log file (will be created if it doesn't exist)
• level: Minimum log level (default: Info)
• buffered: Whether to buffer output (default: true for performance)

Returns the created backend for further configuration (e.g., namespace bindings).

config.file("logs/app.log", level: Logit::LogLevel::Debug)

NOTE The file is opened with mode 0o600 (owner read/write only) by default. Symlinks are not followed unless explicitly enabled in Backend::File.

Adds an OTLP backend that exports logs to an OpenTelemetry collector.

The OTLP backend sends log events in batches via HTTP/JSON to an OpenTelemetry-compatible endpoint. Events are buffered and flushed when the batch size is reached or the flush interval elapses.

• endpoint: OTLP HTTP endpoint URL (e.g., "http://localhost:4318/v1/logs")
• level: Minimum log level (default: Info)
• batch_size: Maximum events per batch (default: 512)
• flush_interval: Time between automatic flushes (default: 5.seconds)
• headers: HTTP headers for authentication (default: empty)
• timeout: HTTP request timeout (default: 30.seconds)
• resource_attributes: Resource attributes like service.name (default: empty)

Returns the created backend for further configuration (e.g., namespace bindings).

Logit.configure do |config|
  config.otlp(
    "http://localhost:4318/v1/logs",
    resource_attributes: {"service.name" => "my-app"}
  )
end

With authentication:

Logit.configure do |config|
  config.otlp(
    "https://otlp.example.com/v1/logs",
    headers: {"Authorization" => "Bearer token"},
    resource_attributes: {
      "service.name" => "my-app",
      "deployment.environment" => "production"
    }
  )
end

Enables a set of common security-related redaction patterns.

This is a convenience method that adds patterns for commonly sensitive argument names including: password, secret, token, api_key, auth, credential, private_key, access_key, and bearer.

config.redact_common_patterns

Adds global redaction patterns that apply to all instrumented methods.

Any argument name matching one of these regex patterns will have its value replaced with [REDACTED] in the logs.

config.redact_patterns(/ssn/i, /credit_card/i, /social_security/i)

Registered tracers by name.

Registered tracers by name.