JWT Autorization / Logging in and registering

node_modules/validator/es/lib/isBtcAddress.js

@@ -0,0 +1,7 @@
+import assertString from './util/assertString'; // supports Bech32 addresses
+
+var btc = /^(bc1|[13])[a-zA-HJ-NP-Z0-9]{25,39}$/;
+export default function isBtcAddress(str) {
+  assertString(str);
+  return btc.test(str);
+}