Add SimulateTransaction RPC endpoint (#10106)

automerge

client/src/rpc_client.rs

@@ -119,6 +119,19 @@ impl RpcClient {
         }
     }
 
+    pub fn simulate_transaction(
+        &self,
+        transaction: &Transaction,
+        sig_verify: bool,
+    ) -> RpcResult<TransactionStatus> {
+        let serialized_encoded = bs58::encode(serialize(transaction).unwrap()).into_string();
+        self.send(
+            RpcRequest::SimulateTransaction,
+            json!([serialized_encoded, { "sigVerify": sig_verify }]),
+            0,
+        )
+    }
+
     pub fn get_signature_status(
         &self,
         signature: &Signature,

client/src/rpc_config.rs

@@ -6,6 +6,12 @@ pub struct RpcSignatureStatusConfig {
     pub search_transaction_history: bool,
 }
 
+#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct RpcSimulateTransactionConfig {
+    pub sig_verify: bool,
+}
+
 #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub enum RpcLargestAccountsFilter {

client/src/rpc_request.rs

@@ -40,6 +40,7 @@ pub enum RpcRequest {
     RegisterNode,
     RequestAirdrop,
     SendTransaction,
+    SimulateTransaction,
     SignVote,
     GetMinimumBalanceForRentExemption,
     MinimumLedgerSlot,
@@ -84,6 +85,7 @@ impl fmt::Display for RpcRequest {
             RpcRequest::RegisterNode => "registerNode",
             RpcRequest::RequestAirdrop => "requestAirdrop",
             RpcRequest::SendTransaction => "sendTransaction",
+            RpcRequest::SimulateTransaction => "simulateTransaction",
             RpcRequest::SignVote => "signVote",
             RpcRequest::GetMinimumBalanceForRentExemption => "getMinimumBalanceForRentExemption",
             RpcRequest::MinimumLedgerSlot => "minimumLedgerSlot",