feat: handle switch ethereum chain (#2676)

* feat: handle switch ethereum chain * Update packages/shared/src/lib/auxiliary/wallet-connect/handlers/wallet_switchEthereumChain.handler.ts Co-authored-by: Mark Nardi <[email protected]> --------- Co-authored-by: Mark Nardi <[email protected]>
bloomwalletio · Jun 28, 2024 · a22001e · a22001e
1 parent 425fbd2
commit a22001e
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Showing 5 changed files with 36 additions and 2 deletions.
diff --git a/...s/shared/src/lib/auxiliary/wallet-connect/constants/general-supported-methods.constant.ts b/...s/shared/src/lib/auxiliary/wallet-connect/constants/general-supported-methods.constant.ts
@@ -1,3 +1,3 @@
 import { RpcMethod } from '../enums'
 
-export const GENERAL_SUPPORTED_METHODS = [RpcMethod.WalletWatchAsset]
+export const GENERAL_SUPPORTED_METHODS = [RpcMethod.WalletWatchAsset, RpcMethod.WalletSwitchEthereumChain]
diff --git a/packages/shared/src/lib/auxiliary/wallet-connect/enums/rpc-method.enum.ts b/packages/shared/src/lib/auxiliary/wallet-connect/enums/rpc-method.enum.ts
@@ -8,4 +8,5 @@ export enum RpcMethod {
     EthSendTransaction = 'eth_sendTransaction',
     EthSendRawTransaction = 'eth_sendRawTransaction',
     WalletWatchAsset = 'wallet_watchAsset',
+    WalletSwitchEthereumChain = 'wallet_switchEthereumChain',
 }
diff --git a/packages/shared/src/lib/auxiliary/wallet-connect/handlers/index.ts b/packages/shared/src/lib/auxiliary/wallet-connect/handlers/index.ts
@@ -5,4 +5,5 @@ export * from './onSessionDelete.handler'
 export * from './onSessionProposal.handler'
 export * from './onSessionRequest.handler'
 export * from './sign_message.handler'
+export * from './wallet_switchEthereumChain.handler'
 export * from './wallet_watchAsset.handler'
diff --git a/packages/shared/src/lib/auxiliary/wallet-connect/handlers/onSessionRequest.handler.ts b/packages/shared/src/lib/auxiliary/wallet-connect/handlers/onSessionRequest.handler.ts
@@ -13,7 +13,7 @@ import { CallbackParameters, WCRequestInfo } from '../types'
 import { handleEthSignTypedData } from './eth_signTypedData.handler'
 import { handleEthTransaction } from './eth_transaction.handler'
 import { handleSignMessage } from './sign_message.handler'
-import { handleWatchAsset } from '@auxiliary/wallet-connect/handlers'
+import { handleWalletSwitchEthereumChain, handleWatchAsset } from '@auxiliary/wallet-connect/handlers'
 import { DappVerification, RpcMethod } from '../enums'
 import { EvmTransactionData, getEvmTransactionFromHexString } from '@core/layer-2'
 import { activeProfileId } from '@core/profile/stores'
@@ -110,6 +110,9 @@ export function onSessionRequest(event: Web3WalletTypes.SessionRequest): void {
         case RpcMethod.WalletWatchAsset:
             void handleWatchAsset(request.params, requestData)
             break
+        case RpcMethod.WalletSwitchEthereumChain:
+            void handleWalletSwitchEthereumChain(request.params, requestData)
+            break
         default:
             returnResponse({ error: getSdkError('INVALID_METHOD') })
             break

diff --git a/...es/shared/src/lib/auxiliary/wallet-connect/handlers/wallet_switchEthereumChain.handler.ts b/...es/shared/src/lib/auxiliary/wallet-connect/handlers/wallet_switchEthereumChain.handler.ts
@@ -0,0 +1,29 @@
+import { WCRequestInfo } from '@auxiliary/wallet-connect/types'
+import { getEvmNetworks } from '@core/network'
+import { Converter } from '@core/utils'
+import { getSdkError } from '@walletconnect/utils'
+
+type WalletSwitchEthereumChain = [
+    {
+        chainId: `0x${string}`
+    },
+]
+
+export function handleWalletSwitchEthereumChain(params: WalletSwitchEthereumChain, requestInfo: WCRequestInfo): void {
+    const { responseCallback } = requestInfo
+
+    const hexChainId = params[0]?.chainId
+    if (!hexChainId) {
+        responseCallback({ error: getSdkError('INVALID_METHOD') })
+        return
+    }
+
+    const chainId = Converter.hexToDecimal(hexChainId)
+
+    const isSupportedEvmChain = getEvmNetworks().some((network) => Number(network.chainId) === chainId)
+    if (isSupportedEvmChain) {
+        responseCallback({ result: chainId })
+    } else {
+        responseCallback({ error: getSdkError('UNSUPPORTED_CHAINS') })
+    }
+}