WebRTC DataChannel 数据传输与持久化协作

`title: WebRTC DataChannel 数据传输与持久化协作``categories: Web 开发/前端/数据管理``keywords: WebRTC,DataChannel,传输,持久化,可靠``description: 使用 WebRTC DataChannel 在端到端传输数据并在前端持久化到 IndexedDB/OPFS，设计可靠重传与分块策略提升稳定性。`连接与通道async function setupRTC() {

const pc = new RTCPeerConnection();

const dc = pc.createDataChannel('data');

dc.onmessage = async (e) => {

const bytes = new Uint8Array(e.data);

// 写入持久层或入队

};

const offer = await pc.createOffer();

await pc.setLocalDescription(offer);

return { pc, dc };

}