Fatal logs, then causes the current program to exit status 1 The program terminates immediately; deferred functions are not run.

Fatalf logs, then causes the current program to exit status 1 The program terminates immediately; deferred functions are not run.

WrappedContext is both a context and a logger, allowing either syntax log.WithField(ctx, "key", "val").Debug() or ctx = log.WithField(ctx, "key", "val").