chore: throw unsupport for eth_simulateV1 (#4359)

Signed-off-by: nikolay <[email protected]>

Author: natanasow

docs/openrpc.json

@@ -1011,6 +1011,16 @@
         }
       }
     },
+    {
+      "name": "eth_simulateV1",
+      "summary": "Always returns UNSUPPORTED_METHOD error.",
+      "params": [],
+      "errors": [
+        {
+          "$ref": "#/components/errors/unsupportedError"
+        }
+      ]
+    },
     {
       "name": "net_listening",
       "summary": "Returns true if client is actively listening for network connections.",

packages/relay/src/index.ts

@@ -56,6 +56,8 @@ export interface Eth {
 
   coinbase(): JsonRpcError;
 
+  simulateV1(): JsonRpcError;
+
   blobBaseFee(): JsonRpcError;
 
   estimateGas(

packages/relay/src/lib/config/methodConfiguration.ts

@@ -37,6 +37,9 @@ export const methodConfiguration: MethodRateLimitConfiguration = {
   eth_coinbase: {
     total: tier2rateLimit,
   },
+  eth_simulateV1: {
+    total: tier2rateLimit,
+  },
   eth_blobBaseFee: {
     total: tier2rateLimit,
   },

packages/relay/src/lib/eth.ts

@@ -641,6 +641,23 @@ export class EthImpl implements Eth {
     return predefined.UNSUPPORTED_METHOD;
   }
 
+  /**
+   * Always returns UNSUPPORTED_METHOD error.
+   *
+   * @rpcMethod Exposed as eth_coinbase RPC endpoint
+   * @rpcParamLayoutConfig decorated method parameter layout
+   *
+   * @returns An error indicating the method is not supported
+   */
+  @rpcMethod
+  @rpcParamLayoutConfig(RPC_LAYOUT.REQUEST_DETAILS_ONLY)
+  simulateV1(): JsonRpcError {
+    if (this.logger.isLevelEnabled('trace')) {
+      this.logger.trace('simulateV1()');
+    }
+    return predefined.UNSUPPORTED_METHOD;
+  }
+
   /**
    * Always returns UNSUPPORTED_METHOD error.
    *

packages/relay/tests/lib/openrpc.spec.ts

@@ -506,6 +506,7 @@ describe('Open RPC Specification', function () {
 
     const unsupportedMethods = {
       eth_coinbase: () => ns.eth.coinbase(),
+      eth_simulateV1: () => ns.eth.simulateV1(),
       eth_blobBaseFee: () => ns.eth.blobBaseFee(),
       eth_getWork: () => ns.eth.getWork(),
       eth_newPendingTransactionFilter: () => ns.eth.newPendingTransactionFilter(),

packages/server/tests/acceptance/rpc_batch2.spec.ts

@@ -705,6 +705,10 @@ describe('@api-batch-2 RPC Server Acceptance Tests', function () {
       await relay.callUnsupported(RelayCalls.ETH_ENDPOINTS.ETH_COINBASE, []);
     });
 
+    it('should not support "eth_simulateV1"', async function () {
+      await relay.callUnsupported(RelayCalls.ETH_ENDPOINTS.ETH_SIMULATEV1, []);
+    });
+
     it('should not support "eth_blobBaseFee"', async function () {
       await relay.callUnsupported(RelayCalls.ETH_ENDPOINTS.ETH_BLOB_BASE_FEE, []);
     });

packages/server/tests/helpers/constants.ts

@@ -16,6 +16,7 @@ const ETH_ENDPOINTS = {
   ETH_PROTOCOL_VERSION: 'eth_protocolVersion',
   ETH_SEND_TRANSACTION: 'eth_sendTransaction',
   ETH_COINBASE: 'eth_coinbase',
+  ETH_SIMULATEV1: 'eth_simulateV1',
   ETH_BLOB_BASE_FEE: 'eth_blobBaseFee',
   ETH_GET_WORK: 'eth_getWork',
   ETH_SUBMIT_HASH_RATE: 'eth_submitHashrate',

packages/server/tests/integration/server.spec.ts

@@ -584,6 +584,21 @@ describe('RPC Server', function () {
     }
   });
 
+  it('should execute "eth_simulateV1"', async function () {
+    try {
+      await testClient.post('/', {
+        id: '2',
+        jsonrpc: '2.0',
+        method: RelayCalls.ETH_ENDPOINTS.ETH_SIMULATEV1,
+        params: [null],
+      });
+
+      Assertions.expectedError();
+    } catch (error: any) {
+      BaseTest.unsupportedJsonRpcMethodChecks(error.response);
+    }
+  });
+
   it('should execute "eth_blobBaseFee"', async function () {
     try {
       await testClient.post('/', {