feat: base implementation

core/services/jlog/context.go

@@ -0,0 +1,23 @@
+package jlog
+
+import (
+	"context"
+	"log/slog"
+)
+
+type ctxKey string
+
+const ctxkeyLogger ctxKey = "jlog:logger"
+
+func FromContext(ctx context.Context) *slog.Logger {
+	logger, exists := ctx.Value(ctxkeyLogger).(*slog.Logger)
+	if !exists {
+		return New(slog.LevelInfo)
+	}
+
+	return logger
+}
+
+func ContextWith(ctx context.Context, logger *slog.Logger) context.Context {
+	return context.WithValue(ctx, ctxkeyLogger, logger)
+}