Merge pull request #12 from lidofinance/feat/dont-set-chainid

Add option to don't set chainId

Author: arwer13

.env.example

@@ -1,3 +1,4 @@
 INFURA_TOKEN=
 ALCHEMY_TOKEN=
-RPC_URL=
+RPC_URL=
+DONT_SENT_CHAIN_ID=

README.md

@@ -29,6 +29,17 @@ If you don't need testing ant holesky use `-holesky-fork` node, for example:
 ```bash
 docker run -e ETH_RPC_URL=your_url -p 8545:8545 -it --rm ghcr.io/lidofinance/hardhat-node:2.22.18.1-holesky-fork
 ```
+
+### Forking fork chainId issue
+
+There might an issue when forking hardhat node with a hardhat node which causes an error like:
+
+```
+The response reported error `-32000`: `header not found`. (optional data: None). Request: {"jsonrpc":"2.0","method":"eth_getBalance","params":["0x61097ba76cd906d2ba4fd106e757f7eb455fc295","0x15062e6"],"id":275}
+```
+
+To fix this `chainId` must not be set in the forked node. To do so set `DONT_SENT_CHAIN_ID` env variable, e.g. `DONT_SENT_CHAIN_ID=1`.
+
 ### Updating hardhat version
 
 - set the new version in package.json

hardhat.config.holesky-fork.ts

@@ -9,11 +9,11 @@ const config: HardhatUserConfig = {
   solidity: "0.8.23",
   networks: {
     hardhat: {
+      ...networks.maybeChainIdConfig(17000),
       initialBaseFeePerGas: 0,
       accounts: {
         count: 10,
       },
-      chainId: 17000,
       forking: {
         url: networks.rpcUrl("eth", "holesky"),
       },

hardhat.config.mainnet-fork-shanghai.ts

@@ -9,12 +9,12 @@ const config: HardhatUserConfig = {
   solidity: "0.8.23",
   networks: {
     hardhat: {
+      ...networks.maybeChainIdConfig(1),
       hardfork: "shanghai",
       initialBaseFeePerGas: 0,
       accounts: {
         count: 10,
       },
-      chainId: 1,
       forking: {
         url: networks.rpcUrl("eth", "mainnet"),
       },

hardhat.config.mainnet-fork.ts

@@ -9,11 +9,11 @@ const config: HardhatUserConfig = {
   solidity: "0.8.23",
   networks: {
     hardhat: {
+      ...networks.maybeChainIdConfig(1),
       initialBaseFeePerGas: 0,
       accounts: {
         count: 10,
       },
-      chainId: 1,
       forking: {
         url: networks.rpcUrl("eth", "mainnet"),
       },

hardhat.config.mainnet-scratch.ts

@@ -1,16 +1,17 @@
 import "dotenv/config";
 import { HardhatUserConfig } from "hardhat/config";
 import "@nomicfoundation/hardhat-ethers";
+import networks from "./src/networks";
 
 const config: HardhatUserConfig = {
   solidity: "0.8.23",
   networks: {
     hardhat: {
+      ...networks.maybeChainIdConfig(1),
       initialBaseFeePerGas: 0,
       accounts: {
         count: 10,
       },
-      chainId: 1,
     },
   },
 };

src/env.ts

@@ -30,6 +30,10 @@ function ALCHEMY_TOKEN() {
   return process.env["ALCHEMY_TOKEN"];
 }
 
+function DONT_SET_CHAIN_ID() {
+  return Boolean(process.env["DONT_SET_CHAIN_ID"]);
+}
+
 export default {
   ETH_RPC_URL,
   ARB_RPC_URL,
@@ -39,4 +43,5 @@ export default {
   LOCAL_ARB_RPC_URL,
   LOCAL_OPT_RPC_URL,
   ALCHEMY_TOKEN,
+  DONT_SET_CHAIN_ID,
 };

src/networks.ts

@@ -26,6 +26,13 @@ function rpcUrl(chainName: ChainName) {
   if (chainName === "opt") return env.OPT_RPC_URL();
 }
 
+function maybeChainIdConfig(chainId: number) {
+  if (env.DONT_SET_CHAIN_ID()) {
+    return { };
+  }
+  return { chainId };
+}
+
 function infuraUrl(chainName: ChainName, networkName: NetworkName) {
   const infuraToken = env.INFURA_TOKEN();
   const infuraNetworkDomain =
@@ -46,4 +53,5 @@ function alchemyUrl(chainName: ChainName, networkName: NetworkName) {
 
 export default {
   rpcUrl: url,
+  maybeChainIdConfig,
 };