File structure improvements

src/crypt/getDomainData.ts

@@ -0,0 +1,15 @@
+import { SupportedChainId } from '../types';
+import eip712DomainData from '../config/eip712DomainData.json';
+import eip712DomainSchema from '../config/schemas/eip712DomainSchema';
+
+const EIP712Domain = eip712DomainSchema.parse(eip712DomainData);
+
+/**
+ * See {@link https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator}
+ */
+const getDomainData = (chainId: SupportedChainId) => ({
+  ...EIP712Domain,
+  chainId,
+});
+
+export default getDomainData;