fix: eagerly emit chainChanged events when receiving a successful response from switchChain calls rather than wait for chainChanged event (#62)

* eagerly emit chainChanged events when receiving a successful response from switchChain calls rather than wait for chainChanged event

* add changelog entry

* changelog formatting issue

Author: adonesky1

packages/connect-evm/CHANGELOG.md

@@ -9,6 +9,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
+- Eagerly call `onChainChanged` when `switchChain` is called (rather than waiting for the `chainChanged` event), this ensures that the provider's selected chain ID is updated even if the `chainChanged` event is not received ([#62](https://github.com/MetaMask/connect-monorepo/pull/62))
+
 - Fixed incorrect caching of error responses for some requests/events ([#59](https://github.com/MetaMask/connect-monorepo/pull/59))
 
 ## [0.1.0]

packages/connect-evm/src/connect.ts

@@ -459,6 +459,10 @@ export class MetamaskConnectEVM {
         params,
       });
       await this.#trackWalletActionSucceeded(method, scope, params);
+      if((result as unknown as { result: unknown }).result === null) {
+      // result is successful we eagerly call onChainChanged to update the provider's selected chain ID.
+      this.#onChainChanged(hexChainId);
+      }
       return result;
     } catch (error) {
       await this.#trackWalletActionFailed(method, scope, params, error);