feat(clerk-remix): Introduce SSR getAuth for Remix

packages/remix/src/ssr/getAuth.ts

@@ -0,0 +1,19 @@
+import { noRequestPassedInGetAuth } from '../errors';
+import { getAuthData } from './getAuthData';
+import { GetAuthOptions, GetAuthReturn, LoaderFunctionArgs } from './types';
+import { sanitizeAuthData } from './utils';
+
+export async function getAuth<Options extends GetAuthOptions>(
+  argsOrReq: Request | LoaderFunctionArgs,
+  options?: Options,
+): GetAuthReturn<Options> {
+  if (!argsOrReq) {
+    throw new Error(noRequestPassedInGetAuth);
+  }
+
+  const request = 'request' in argsOrReq ? argsOrReq.request : argsOrReq;
+  const { authData } = await getAuthData(request, options || {});
+  // @ts-expect-error This can only return null during interstitial,
+  // but the public types should not know that
+  return sanitizeAuthData(authData || {});
+}