1 files changed, 11 insertions, 0 deletions
diff --git a/packages/server/src/helpers/decodeClientDataJSON.ts b/packages/server/src/helpers/decodeClientDataJSON.ts
new file mode 100644
index 0000000..7aae023
--- /dev/null
+++ b/packages/server/src/helpers/decodeClientDataJSON.ts
@@ -0,0 +1,11 @@
+import { ClientDataJSON } from '@libTypes';
+
+import asciiToBinary from './asciiToBinary';
+
+/**
+ * Decode an authenticator's base64-encoded clientDataJSON to JSON
+ */
+export default function decodeClientDataJSON(data: string): ClientDataJSON {
+  const toString = asciiToBinary(data);
+  return JSON.parse(toString);
+}