# getChain

Description: getChain cheatcode documentation

Note: This document was authored using MDX

  Source: https://github.com/NomicFoundation/hardhat-website/tree/main/src/content/docs/docs/reference/cheatcodes/Environment/get-chain.mdx

### Signature

```solidity
struct Chain {
  /// The chain name.
  string name;
  /// The chain's Chain ID.
  uint256 chainId;
  /// The chain's alias. (i.e. what gets specified in `foundry.toml`).
  string chainAlias;
  /// A default RPC endpoint for this chain.
  string rpcUrl;
}
function getChain(
  string calldata chainAlias
) external view returns (Chain memory chain);
function getChain(uint256 chainId) external view returns (Chain memory chain);
```

### Description

Returns a `Chain` struct for specific `chainId` or `chainAlias`.