Add api command

cmd/sing-box/cmd_api_group_urltest.go

@@ -0,0 +1,31 @@
+package main
+
+import (
+	"github.com/sagernet/sing-box/daemon"
+
+	"github.com/spf13/cobra"
+)
+
+var commandAPIGroupURLTest = &cobra.Command{
+	Use:   "urltest <group>",
+	Short: "Start a URL test",
+	Long:  "Start a URL test.\n\nThe tests are only spawned: results appear in `outbounds --group <group>` a few seconds later.",
+	Args:  cobra.ExactArgs(1),
+	RunE: func(cmd *cobra.Command, args []string) error {
+		return runAPIGroupURLTest(args[0])
+	},
+}
+
+func init() {
+	commandAPIGroup.AddCommand(commandAPIGroupURLTest)
+}
+
+func runAPIGroupURLTest(groupTag string) error {
+	clientConn, client, err := createAPIClient()
+	if err != nil {
+		return err
+	}
+	defer clientConn.Close()
+	_, err = client.URLTest(globalCtx, &daemon.URLTestRequest{OutboundTag: groupTag})
+	return err
+}