Rust区块链开发库ibc-proto的使用：支持跨链通信协议的高效实现与集成

概述

ibc-proto-rs 是一个 Rust 实现的 Protobuf 定义和 gRPC 客户端库，用于与 Cosmos SDK、IBC（跨链通信）和 Interchain Security 进行交互。该库维护了所有与链上 IBC 数据交互相关的数据结构。

无论您是在构建 IBC 中继器、IBC 模块，还是任何使用 Rust 中 IBC 数据结构的客户端软件，这个库都能满足您的需求。

主要特性

• 提供了完整的 IBC 协议 Protobuf 定义
• 包含与 Cosmos SDK 交互的 gRPC 客户端
• 支持跨链通信协议
• 适用于构建 IBC 中继器和模块

安装

在您的项目目录中运行以下 Cargo 命令：

cargo add ibc-proto

或者在 Cargo.toml 中添加：

ibc-proto = "0.52.0"

系统要求

• Rust 1.56.1+
• Buf CLI

示例代码

以下是一个使用 ibc-proto 进行跨链通信的基本示例：

use ibc_proto::cosmos::base::query::v1beta1::PageRequest;
use ibc_proto::ibc::core::channel::v1::{
    QueryChannelsRequest, QueryChannelsResponse,
};
use ibc_proto::ibc::core::client::v1::{
    QueryClientStatesRequest, QueryClientStatesResponse,
};
use tonic::transport::Channel;

async fn query_ibc_channels(
    channel: Channel,
) -> Result<QueryChannelsResponse, Box<dyn std::error::Error>> {
    // 创建 gRPC 客户端
    let mut client = ibc_proto::ibc::core::channel::v1::query_client::QueryClient::new(channel);
    
    // 构建查询请求
    let request = QueryChannelsRequest {
        pagination: Some(PageRequest {
            key: vec![],
            offset: 0,
            limit: 100,
            count_total: false,
            reverse: false,
        }),
    };
    
    // 发送请求并获取响应
    let response = client.channels(request).await?;
    Ok(response.into_inner())
}

async fn query_ibc_clients(
    channel: Channel,
) -> Result<QueryClientStatesResponse, Box<dyn std::error::Error>> {
    // 创建 gRPC 客户端
    let mut client = ibc_proto::ibc::core::client::v1::query_client::QueryClient::new(channel);
    
    // 构建查询请求
    let request = QueryClientStatesRequest {
        pagination: Some(PageRequest {
            key: vec![],
            offset: 0,
            limit: 100,
            count_total: false,
            reverse: false,
        }),
    };
    
    // 发送请求并获取响应
    let response = client.client_states(request).await?;
    Ok(response.into_inner())
}

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    // 连接到 Cosmos 节点
    let channel = tonic::transport::Endpoint::from_static("http://localhost:9090")
        .connect()
        .await?;
    
    // 查询 IBC 通道
    let channels = query_ibc_channels(channel.clone()).await?;
    println!("IBC Channels: {:?}", channels);
    
    // 查询 IBC 客户端
    let clients = query_ibc_clients(channel).await?;
    println!("IBC Clients: {:?}", clients);
    
    Ok(())
}

完整示例代码

以下是一个更完整的示例，展示了如何使用 ibc-proto 进行更复杂的 IBC 操作：

use ibc_proto::cosmos::base::query::v1beta1::PageRequest;
use ibc_proto::ibc::core::channel::v1::{
    QueryChannelsRequest, QueryChannelsResponse,
    QueryConnectionChannelsRequest, QueryConnectionChannelsResponse,
    QueryChannelRequest, QueryChannelResponse,
};
use ibc_proto::ibc::core::client::v1::{
    QueryClientStatesRequest, QueryClientStatesResponse,
    QueryClientStateRequest, QueryClientStateResponse,
};
use ibc_proto::ibc::core::connection::v1::{
    QueryConnectionsRequest, QueryConnectionsResponse,
    QueryConnectionRequest, QueryConnectionResponse,
};
use tonic::transport::Channel;

// 查询所有IBC通道
async fn query_all_ibc_channels(
    channel: Channel,
) -> Result<QueryChannelsResponse, Box<dyn std::error::Error>> {
    let mut client = ibc_proto::ibc::core::channel::v1::query_client::QueryClient::new(channel);
    
    let request = QueryChannelsRequest {
        pagination: Some(PageRequest {
            key: vec![],
            offset: 0,
            limit: 100,
            count_total: false,
            reverse: false,
        }),
    };
    
    let response = client.channels(request).await?;
    Ok(response.into_inner())
}

// 查询特定IBC通道
async fn query_specific_channel(
    channel: Channel,
    port_id: String,
    channel_id: String,
) -> Result<QueryChannelResponse, Box<dyn std::error::Error>> {
    let mut client = ibc_proto::ibc::core::channel::v1::query_client::QueryClient::new(channel);
    
    let request = QueryChannelRequest {
        port_id,
        channel_id,
    };
    
    let response = client.channel(request).await?;
    Ok(response.into_inner())
}

// 查询连接相关的通道
async fn query_connection_channels(
    channel: Channel,
    connection: String,
) -> Result<QueryConnectionChannelsResponse, Box<dyn std::error::Error>> {
    let mut client = ibc_proto::ibc::core::channel::v1::query_client::QueryClient::new(channel);
    
    let request = QueryConnectionChannelsRequest {
        connection,
        pagination: Some(PageRequest {
            key: vec![],
            offset: 0,
            limit: 100,
            count_total: false,
            reverse: false,
        }),
    };
    
    let response = client.connection_channels(request).await?;
    Ok(response.into_inner())
}

// 查询所有IBC客户端状态
async fn query_all_client_states(
    channel: Channel,
) -> Result<QueryClientStatesResponse, Box<dyn std::error::Error>> {
    let mut client = ibc_proto::ibc::core::client::v1::query_client::QueryClient::new(channel);
    
    let request = QueryClientStatesRequest {
        pagination: Some(PageRequest {
            key: vec![],
            offset: 0,
            limit: 100,
            count_total: false,
            reverse: false,
        }),
    };
    
    let response = client.client_states(request).await?;
    Ok(response.into_inner())
}

// 查询特定IBC客户端状态
async fn query_client_state(
    channel: Channel,
    client_id: String,
) -> Result<QueryClientStateResponse, Box<dyn std::error::Error>> {
    let mut client = ibc_proto::ibc::core::client::v1::query_client::QueryClient::new(channel);
    
    let request = QueryClientStateRequest {
        client_id,
    };
    
    let response = client.client_state(request).await?;
    Ok(response.into_inner())
}

// 查询所有IBC连接
async fn query_all_connections(
    channel: Channel,
) -> Result<QueryConnectionsResponse, Box<dyn std::error::Error>> {
    let mut client = ibc_proto::ibc::core::connection::v1::query_client::QueryClient::new(channel);
    
    let request = QueryConnectionsRequest {
        pagination: Some(PageRequest {
            key: vec![],
            offset: 0,
            limit: 100,
            count_total: false,
            reverse: false,
        }),
    };
    
    let response = client.connections(request).await?;
    Ok(response.into_inner())
}

// 查询特定IBC连接
async fn query_connection(
    channel: Channel,
    connection_id: String,
) -> Result<QueryConnectionResponse, Box<dyn std::error::Error>> {
    let mut client = ibc_proto::ibc::core::connection::v1::query_client::QueryClient::new(channel);
    
    let request = QueryConnectionRequest {
        connection_id,
    };
    
    let response = client.connection(request).await?;
    Ok(response.into_inner())
}

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    // 连接到 Cosmos 节点
    let channel = tonic::transport::Endpoint::from_static("http://localhost:9090")
        .connect()
        .await?;
    
    // 1. 查询所有IBC通道
    let channels = query_all_ibc_channels(channel.clone()).await?;
    println!("All IBC Channels: {:?}", channels);
    
    // 2. 查询特定通道
    if !channels.channels.is_empty() {
        let first_channel = &channels.channels[0];
        let channel_info = query_specific_channel(
            channel.clone(),
            first_channel.port_id.clone(),
            first_channel.channel_id.clone(),
        ).await?;
        println!("First Channel Details: {:?}", channel_info);
    }
    
    // 3. 查询所有客户端状态
    let clients = query_all_client_states(channel.clone()).await?;
    println!("All IBC Clients: {:?}", clients);
    
    // 4. 查询特定客户端状态
    if !clients.client_states.is_empty() {
        let first_client = &clients.client_states[0];
        let client_state = query_client_state(
            channel.clone(),
            first_client.client_id.clone(),
        ).await?;
        println!("First Client State: {:?}", client_state);
    }
    
    // 5. 查询所有连接
    let connections = query_all_connections(channel.clone()).await?;
    println!("All IBC Connections: {:?}", connections);
    
    // 6. 查询特定连接
    if !connections.connections.is_empty() {
        let first_connection = &connections.connections[0];
        let connection_info = query_connection(
            channel.clone(),
            first_connection.id.clone(),
        ).await?;
        println!("First Connection Details: {:?}", connection_info);
        
        // 7. 查询连接相关的通道
        let conn_channels = query_connection_channels(
            channel,
            first_connection.id.clone(),
        ).await?;
        println!("Channels for Connection: {:?}", conn_channels);
    }
    
    Ok(())
}

许可证

Apache 2.0 许可证

文档

更多详细信息和 API 参考，请查阅官方文档。

贡献者

该项目由 Informal Systems 维护，主要贡献者包括：

• Romain Ruetschi
• Greg Szabo
• Shoaib Ahmed
• Andy Nogueira
• Adi Seredinschi
• Philippe Laferrière
• Farhad Shabani
• Luca Joss
• ibcbot