feat(hedera): added support for hedera network by krypc team (#4)

* Added support for Hedera network.

* feat(hedera): added support for hedera network

we have added mainnet and testnet hedera network configurations.

---------

Co-authored-by: piruthivi2 <piruthivi@techbreakthrough.co.in>

src/index.test.ts

@@ -255,3 +255,18 @@ describe("queryDns", () => {
     }
   });
 });
+
+describe("getDocumentStoreRecords for Hedera", () => {
+  const sampleDnsTextRecord = {
+    type: "openatts",
+    net: "hedera",
+    netId: "296",
+    dnssec: false,
+    addr: "0x3498b8e0A00fC8c3a1f64647AC85EEE8E1baF953",
+  };
+
+  test("it should work with trustlv.org", async () => {
+    const records = await getDocumentStoreRecords("trustlv.org");
+    expect(records).toStrictEqual([sampleDnsTextRecord]);
+  });
+});

src/records/dnsTxt.ts

@@ -2,12 +2,17 @@ import { Static, Boolean, String, Literal, Record, Union, Partial } from "runtyp
 
 export const RecordTypesT = Literal("openatts");
 
-export const BlockchainNetworkT = Literal("ethereum");
+// export const BlockchainNetworkT = Literal("ethereum");
+export const BlockchainNetworkT = Union(Literal("ethereum"), Literal("hedera"));
 
 export const EthereumAddressT = String.withConstraint((maybeAddress: string) => {
   return /0x[a-fA-F0-9]{40}/.test(maybeAddress) || `${maybeAddress} is not a valid ethereum address`;
 });
 
+export const HederaAccountIDT = String.withConstraint((maybeAddress: string) => {
+  return /0x[a-fA-F0-9]{40}/.test(maybeAddress) || `${maybeAddress} is not a valid hedera address`;
+});
+
 export enum EthereumNetworks {
   homestead = "1",
   ropsten = "3",
@@ -21,6 +26,12 @@ export enum EthereumNetworks {
   xdcapothem = "51",
 }
 
+export enum HederaNetworks {
+  mainnet = "295",
+  testnet = "296",
+}
+export const HederaNetworkIdT = Union(Literal(HederaNetworks.mainnet), Literal(HederaNetworks.testnet));
+
 export const EthereumNetworkIdT = Union(
   Literal(EthereumNetworks.homestead),
   Literal(EthereumNetworks.ropsten),
@@ -34,15 +45,19 @@ export const EthereumNetworkIdT = Union(
   Literal(EthereumNetworks.local)
 );
 
-export const OpenAttestationDNSTextRecordT = Record({
-  type: RecordTypesT,
-  net: BlockchainNetworkT, // key names are directly lifted from the dns-txt record format
-  netId: EthereumNetworkIdT, // they are abbreviated because of 255 char constraint on dns-txt records
-  addr: EthereumAddressT,
-}).And(
-  Partial({
-    dnssec: Boolean,
-  })
+export const OpenAttestationDNSTextRecordT = Union(
+  Record({
+    type: RecordTypesT,
+    net: Literal("ethereum"),
+    netId: EthereumNetworkIdT,
+    addr: EthereumAddressT,
+  }).And(Partial({ dnssec: Boolean })),
+  Record({
+    type: RecordTypesT,
+    net: Literal("hedera"),
+    netId: HederaNetworkIdT,
+    addr: HederaAccountIDT,
+  }).And(Partial({ dnssec: Boolean }))
 );
 
 export type BlockchainNetwork = Static<typeof BlockchainNetworkT>;