feat: expose openapi spec under _hub secure routes (#35)

* feat: expose openapi spec under `_hub` secure routes

* fix: apply review

src/module/index.ts

@@ -79,7 +79,8 @@ export default defineNuxtModule<ModuleOptions>({
       userToken: process.env.NUXT_HUB_USER_TOKEN || '',
       remote: remoteArg || process.env.NUXT_HUB_REMOTE,
       version,
-      env: process.env.NUXT_HUB_ENV || 'production'
+      env: process.env.NUXT_HUB_ENV || 'production',
+      openapi: nuxt.options.nitro.experimental?.openAPI === true
     })
     // validate remote option
     if (hub.remote && !['true', 'production', 'preview'].includes(String(hub.remote))) {

src/module/runtime/server/api/_hub/openapi.get.ts

@@ -0,0 +1,26 @@
+import { useRuntimeConfig } from '#imports'
+
+export default eventHandler(async (event) => {
+  const hub = useRuntimeConfig().hub
+
+  if (!hub.openapi) {
+    throw createError({
+      statusCode: 422,
+      message: 'OpenAPI not configured'
+    })
+  }
+
+  const openapi = await import('#internal/nitro/routes/openapi')
+    .then((mod) => mod.default)
+    .catch(() => undefined)
+
+  if (typeof openapi !== 'function') {
+    throw createError({
+      statusCode: 404,
+      message: 'not found'
+    })
+  }
+
+  return openapi(event)
+})
+