Missing keys and logging

Missing keys

translator.MissingKey += (sender, e) => Console.WriteLine($"{e.Language} {e.Namespace}:{e.Key} ({string.Join(", ", e.PossibleKeys)})");
translator.MissingKeyHandlers.Add(new MyMissingKeyHandler());   // IMissingKeyHandler, e.g. to report missing keys

Missing key handlers

There is no built-in handler. Subscribe to DefaultTranslator.MissingKey or add an IMissingKeyHandler to MissingKeyHandlers to log, collect or save missing keys.

Logging

The default TraceLogger writes warnings and errors to System.Diagnostics.Trace. With dependency injection an existing Microsoft.Extensions.Logging.ILogger is used automatically. Serilog is supported by I18NextSerilogLogger.

var logger = new TraceLogger { LogLevel = LogLevel.Debug };
var translator = new DefaultTranslator(backend, logger, new DefaultPluralResolver(), new DefaultInterpolator(logger));

Loggers

Logger	Package	Description
TraceLogger	I18Next.Net	Writes to System.Diagnostics.Trace, filtered by LogLevel
DefaultExtensionsLogger	I18Next.Net.Extensions	Forwards to Microsoft.Extensions.Logging, registered automatically with dependency injection
I18NextSerilogLogger	I18Next.Net.Serilog	Forwards to Serilog