solved undeclared classhash

rpc-state-reader/src/blockifier_state_reader.rs

@@ -358,9 +358,10 @@ pub fn execute_tx_configurable_with_state(
         }
         SNTransaction::Declare(tx) => {
             let block_number = block_context.block_info().block_number;
+            let network = parse_to_rpc_chain(&chain_id.to_string());
             // we need to retrieve the next block in order to get the contract_class
             let next_block_state_reader = RpcStateReader(
-                RpcState::new_rpc(RpcChain::MainNet, (block_number.next()).unwrap().into())
+                RpcState::new_rpc(network, (block_number.next()).unwrap().into())
                     .unwrap(),
             );
             let contract_class = next_block_state_reader
@@ -492,6 +493,15 @@ pub fn execute_tx_with_blockifier(
     account_transaction.execute(state, &context, false, true)
 }
 
+fn parse_to_rpc_chain(network: &str) -> RpcChain {
+    match network {
+        "alpha-mainnet" => RpcChain::MainNet,
+        "alpha4" => RpcChain::TestNet,
+        "alpha4-2" => RpcChain::TestNet2,
+        _ => panic!("Invalid network name {}", network)
+    }
+}
+
 pub fn fetch_block_context(state: &RpcState, block_number: BlockNumber) -> BlockContext {
     let rpc_block_info = state.get_block_info().unwrap();
     let gas_price = state.get_gas_price(block_number.0).unwrap();