Introduction
The Client is a critical component that enables interaction with the ZKsync Era. It serves as a wrapper around the
ZKsync RPC API and supports ethclient.Client from the geth library, along with additional methods specific to
ZKsync chains.
geth library has the concept of a Client, not a Provider, the Go SDK for ZKsync also adopts the
concept of a Client, as opposed to using a Provider like in other ZKsync SDKs.In code, the Client provides Ethereum RPC methods on the ZKsync node, prefixed with eth_. It includes the same
methods as ethclient.Client from the geth library, ensuring compatibility with existing Ethereum tools and
workflows. Additionally, it has extra methods capable of handling EIP-712 transactions, which are essential for the
unique features of ZKsync chains. The Client is designed to be compatible with
the bind.ContractBackend interface from geth, which enables support for smart contracts generated using
the abigen tool.
Also, the Client provides the API methods specific to ZKsync, prefixed with zks_. These methods facilitate the
use of ZKsync's unique features, such as account abstraction, custom fee systems, and other L2
functionalities.