Set runtimeChain from source (#2595)

* Set runtimeChain from source

* Update packages/api/src/base/index.ts

* Update CHANGELOG.md

packages/api/src/base/Init.ts

@@ -161,6 +161,7 @@ export default abstract class Init<ApiType extends ApiTypes> extends Decorate<Ap
   // eslint-disable-next-line @typescript-eslint/require-await
   private async _metaFromSource (source: ApiBase<any>): Promise<Metadata> {
     this._extrinsicType = source.extrinsicVersion;
+    this._runtimeChain = source.runtimeChain;
     this._runtimeVersion = source.runtimeVersion;
     this._genesisHash = source.genesisHash;
     this.registry.setChainProperties(source.registry.getChainProperties());

packages/api/src/base/index.ts

@@ -7,7 +7,7 @@ import { Hash, RuntimeVersion } from '@polkadot/types/interfaces';
 import { CallFunction, RegistryError, SignerPayloadRawBase } from '@polkadot/types/types';
 import { ApiInterfaceRx, ApiOptions, ApiTypes, DecoratedRpc, DecorateMethod, QueryableConsts, QueryableStorage, QueryableStorageMulti, SubmittableExtrinsics, Signer } from '../types';
 
-import { Metadata } from '@polkadot/types';
+import { Metadata, Text } from '@polkadot/types';
 import { assert, isString, isUndefined, u8aToHex, u8aToU8a } from '@polkadot/util';
 
 import Init from './Init';
@@ -193,6 +193,13 @@ export default abstract class ApiBase<ApiType extends ApiTypes> extends Init<Api
     return assertResult(this._rpc);
   }
 
+  /**
+   * @description Contains the chain information for the current node.
+   */
+  public get runtimeChain (): Text {
+    return assertResult(this._runtimeChain);
+  }
+
   /**
    * @description Yields the current attached runtime metadata. Generally this is only used to construct extrinsics & storage, but is useful for current runtime inspection.
    */