Crate hopr_chain_rpc

This crate contains types and traits that ensure correct interfacing with Ethereum RPC providers.

The most important trait is HoprRpcOperations which allows to send arbitrary on-chain transactions and also to perform the selection of HOPR-related smart contract operations. Secondly, the HoprIndexerRpcOperations is a trait that contains all operations required by the Indexer to subscribe to the block with logs from the chain.

Both of these traits implemented and realized via the RpcOperations type, so this represents the main entry point to all RPC related operations.

Modules

client

Due to the migration of the RPC client to the alloy crate, this module contains implementation and parameters of client layers. The underlying HTTP transport layer is defined in transport.rs.

errors

indexer

Extends the RpcOperations type with functionality needed by the Indexer component.

rpc

General purpose high-level RPC operations implementation (HoprRpcOperations).

transport

Structs

BlockWithLogs

Structure containing filtered logs that all belong to the same block.

FilterSet

Represents a set of categorized blockchain log filters for optimized indexer performance.

HttpPostRequestorConfig

Common configuration for all native HttpPostRequestors

Log

A type containing selected fields from the eth_getLogs RPC calls.

NodeSafeModuleStatus

Represents the on-chain status for the Node Safe module.

ReqwestClient

An asynchronous Client to make Requests with.

Enums

RetryAction

Indicates what retry action should be taken, as result of a RetryPolicy implementation.

Traits

HoprIndexerRpcOperations

Trait with RPC provider functionality required by the Indexer.

HoprRpcOperations

Trait defining a general set of operations an RPC provider must provide to the HOPR node.

RetryPolicy

Simple retry policy trait