callbacks service draft

api/edge/callbacks/internal/secrets/module.go

@@ -0,0 +1,33 @@
+package secrets
+
+import (
+	"context"
+	"time"
+
+	"github.com/tech/sendico/pkg/mlogger"
+	"github.com/tech/sendico/pkg/vault/kv"
+)
+
+// Provider resolves secrets by reference.
+type Provider interface {
+	GetSecret(ctx context.Context, ref string) (string, error)
+}
+
+// VaultOptions configure Vault KV secret resolution.
+type VaultOptions struct {
+	Config       kv.Config
+	DefaultField string
+}
+
+// Options configure secret lookup behavior.
+type Options struct {
+	Logger   mlogger.Logger
+	Static   map[string]string
+	CacheTTL time.Duration
+	Vault    VaultOptions
+}
+
+// New creates secrets provider.
+func New(opts Options) (Provider, error) {
+	return newProvider(opts)
+}