chore: import upstream snapshot with attribution

cmd/micro/server/gateway.go

@@ -0,0 +1,72 @@
+package server
+
+import (
+	"fmt"
+	"net/http"
+	"os"
+	"path/filepath"
+
+	"go-micro.dev/v6/gateway/api"
+	"go-micro.dev/v6/registry"
+	"go-micro.dev/v6/store"
+)
+
+// GatewayOptions configures the HTTP gateway (legacy compatibility)
+// Deprecated: Use gateway/api.Options directly
+type GatewayOptions = api.Options
+
+// Gateway represents a running HTTP gateway server (legacy compatibility)
+// Deprecated: Use gateway/api.Gateway directly
+type Gateway = api.Gateway
+
+// StartGateway starts the HTTP gateway with the given options.
+// This is a compatibility wrapper around gateway/api.New().
+//
+// Deprecated: Use gateway/api.New() directly for new code.
+func StartGateway(opts GatewayOptions) (*Gateway, error) {
+	// Initialize auth if enabled (server-specific setup)
+	if opts.AuthEnabled {
+		if err := initAuth(); err != nil {
+			return nil, fmt.Errorf("failed to initialize auth: %w", err)
+		}
+
+		homeDir, _ := os.UserHomeDir()
+		keyDir := filepath.Join(homeDir, "micro", "keys")
+		privPath := filepath.Join(keyDir, "private.pem")
+		pubPath := filepath.Join(keyDir, "public.pem")
+		if err := InitJWTKeys(privPath, pubPath); err != nil {
+			return nil, fmt.Errorf("failed to init JWT keys: %w", err)
+		}
+	}
+
+	// Get store (server-specific default)
+	s := store.DefaultStore
+
+	// Parse templates (server-specific)
+	tmpls := parseTemplates()
+
+	// Create handler registrar that registers server-specific handlers
+	opts.HandlerRegistrar = func(mux *http.ServeMux) error {
+		registerHandlers(mux, tmpls, s, opts.AuthEnabled)
+		return nil
+	}
+
+	// Use default registry if not set
+	if opts.Registry == nil {
+		opts.Registry = registry.DefaultRegistry
+	}
+
+	// Delegate to gateway/api package
+	return api.New(opts)
+}
+
+// RunGateway starts the gateway and blocks until it stops.
+//
+// Deprecated: Use gateway/api.Run() with a custom handler registrar.
+func RunGateway(opts GatewayOptions) error {
+	gw, err := StartGateway(opts)
+	if err != nil {
+		return err
+	}
+	return gw.Wait()
+}