diff --git a/wwwroot/v1/jump-in/index.dspy b/wwwroot/v1/jump-in/index.dspy
new file mode 100644
index 0000000..41c4aaf
--- /dev/null
+++ b/wwwroot/v1/jump-in/index.dspy
@@ -0,0 +1,7 @@
+debug(f'jump-in:{params_kw=}')
+deerer = params_kw.deerer
+if deerer is None:
+	return "error"
+userid = await deerer_user(deerer)
+return await redirect(entire_url('/'))
+