todo-打包多条消息批量处理

原生不支持, 可通过消费者端批量累积, 或使用插件

消费者端批量累积

class BatchConsumer {
    constructor(batchSize = 10, timeout = 1000) {
        this.batch = [];
        this.batchSize = batchSize;
        this.timeout = timeout;
        this.timer = null;
    }
    
    async consume(channel, queue) {
        await channel.prefetch(batchSize * 2);  // 预取足够消息
        
        await channel.consume(queue, async (msg) => {
            this.batch.push({
                content: msg.content,
                deliveryTag: msg.fields.deliveryTag
            });
            
            // 达到批量大小
            if (this.batch.length >= this.batchSize) {
                await this.processBatch(channel);
            }
            
            // 超时触发
            if (!this.timer && this.batch.length > 0) {
                this.timer = setTimeout(() => {
                    this.processBatch(channel);
                }, this.timeout);
            }
        });
    }
    
    async processBatch(channel) {
        
    }
}