add custom error decoding example

examples/src/decode-error.js

@@ -0,0 +1,46 @@
+import { ethers } from 'ethers';
+
+import 'dotenv/config';
+
+const abi = [
+  'error Unauthorized()',
+
+  'error BadgeNotAllowed(address badge)',
+  'error BadgeNotFound(address badge)',
+  'error ExpirationDisabled()',
+  'error MissingPayload()',
+  'error ResolverPaymentsDisabled()',
+  'error RevocationDisabled()',
+  'error SingletonBadge()',
+  'error UnknownSchema()',
+
+  'error AttestationBadgeMismatch(bytes32 uid)',
+  'error AttestationExpired(bytes32 uid)',
+  'error AttestationNotFound(bytes32 uid)',
+  'error AttestationOwnerMismatch(bytes32 uid)',
+  'error AttestationRevoked(bytes32 uid)',
+  'error AttestationSchemaMismatch(bytes32 uid)',
+
+  'error BadgeCountReached()',
+  'error LengthMismatch()',
+  'error TokenNotOwnedByUser(address token, uint256 tokenId)',
+
+  'error CallerIsNotUserProfile()',
+  'error DuplicatedUsername()',
+  'error ExpiredSignature()',
+  'error ImplementationNotContract()',
+  'error InvalidReferrer()',
+  'error InvalidSignature()',
+  'error InvalidUsername()',
+  'error MsgValueMismatchWithMintFee()',
+  'error ProfileAlreadyMinted()',
+];
+
+async function main() {
+  const errData = '0x8baa579f';
+  const contract = new ethers.Interface(abi);
+  const decodedError = contract.parseError(errData);
+  console.log('error:', decodedError.name);
+}
+
+main();