fix(openapi): Correctly handle generating spec with a "/" endpoint

aklinker1 · aklinker1 · commit 4bd258f81982 · 2026-01-02T13:42:07.000-06:00
diff --git a/src/open-api.ts b/src/open-api.ts
@@ -39,11 +39,14 @@ export function buildOpenApiDocs(
     };
     for (const [method, methodEntry] of Object.entries(app["~zeta"].routes)) {
       for (const [path, routerData] of Object.entries(methodEntry)) {
-        const openApiPath = path
-          // Replace parameters with OpenAPI format
-          .replace(/\/:([^/]+)/g, "/{$1}")
-          // Remove trailing slash
-          .replace(/\/$/, "");
+        const openApiPath =
+          path
+            // Replace parameters with OpenAPI format
+            .replace(/\/:([^/]+)/g, "/{$1}")
+            // Remove trailing slash
+            .replace(/\/$/, "") ||
+          // Convert "" -> "/"
+          "/";
         const { headers, params, query, body, responses, ...openApiOperation } =
           routerData.def ?? {};
         docs.paths ??= {};
