1 files changed, 14 insertions, 0 deletions
diff --git a/packages/server/src/helpers/decodeCbor.ts b/packages/server/src/helpers/decodeCbor.ts
new file mode 100644
index 0000000..aa489e8
--- /dev/null
+++ b/packages/server/src/helpers/decodeCbor.ts
@@ -0,0 +1,14 @@
+import cbor from 'cbor';
+
+export function decodeCborFirst(input: string | Buffer | ArrayBufferView): any {
+  try {
+    // throws if there are extra bytes
+    return cbor.decodeFirstSync(input);
+  } catch (err) {
+    // if the error was due to extra bytes, return the unpacked value
+    if (err.value) {
+      return err.value;
+    }
+    throw err;
+  }
+}