utils: Add a util to get the genesis hash for a network address (dhiw…

…ay#228)

Signed-off-by: Shreevatsa N <vatsa@dhiway.com>

packages/config/src/Config.ts

@@ -25,6 +25,7 @@ import {
   cordSignedExtensions,
 } from '@cord.network/type-definitions'
 import * as ConfigService from './Service.js'
+import { SDKErrors } from '@cord.network/utils'
 
 /**
  * Initializes the CORD SDK configuration and prepares cryptographic modules.
@@ -130,3 +131,49 @@ export async function disconnect(): Promise<boolean> {
   await api.disconnect()
   return true
 }
+
+/**
+ * Returns the genesis hash in hexadecimal format for a given network object which is a ApiPromise.
+ *
+ * @param network network object of type ApiPromise for which the genesis hash is required.
+ * @returns Returns the genesis hash in Hexadecimal format.
+ */
+export async function getGenesisHash(
+  network: ApiPromise,
+): Promise<string> {
+try {
+  return network.genesisHash.toHex();
+} catch (error) {
+  const errorMessage =
+      error instanceof Error ? error.message : JSON.stringify(error)
+
+  throw new SDKErrors.CordQueryError(
+      `Error querying asset entry: ${errorMessage}`
+  )}
+}
+
+/**
+ * Connects to chain and returns the genesis hash in hexadecimal format for a given networkAddress.
+ *
+ * @param networkAddress Network Address for which the genesis hash is required.
+ * @returns Returns the genesis hash in Hexadecimal format.
+ */
+export async function getGenesisHashWithConnect(
+  networkAddress: string,
+): Promise<string> {
+try {
+  const connectData = await connect(networkAddress as string);
+  const genesisHash = connectData.genesisHash.toHex();
+
+  return genesisHash;
+} catch (error) {
+  const errorMessage =
+      error instanceof Error ? error.message : JSON.stringify(error)
+
+  throw new SDKErrors.CordQueryError(
+      `Error querying asset entry: ${errorMessage}`
+  )
+} finally {
+    disconnect();
+  }
+}

packages/config/src/index.ts

@@ -1,2 +1,2 @@
 export * as ConfigService from './Service.js'
-export { connect, disconnect, init } from './Config.js'
+export { connect, disconnect, init, getGenesisHash, getGenesisHashWithConnect } from './Config.js'

packages/sdk/src/index.ts

@@ -1,4 +1,4 @@
-export { connect, disconnect, init, ConfigService } from '@cord.network/config'
+export { connect, disconnect, init, getGenesisHash, getGenesisHashWithConnect, ConfigService } from '@cord.network/config'
 export { Chain } from '@cord.network/network'
 export * as ChainHelpers from '@cord.network/network'
 export * as Did from '@cord.network/did'