如何将长mongodb聚合转换为易于阅读的代码

const { MongoClient } = require('mongodb');

async function convertAggregation() {
  const uri = 'mongodb://localhost:27017';  // MongoDB 连接字符串
  const client = new MongoClient(uri);

  try {
    // 创建连接
    await client.connect();

    // 选择数据库和集合
    const database = client.db('mydb');
    const collection = database.collection('mycollection');

    // 构建聚合管道
    const pipeline = [
      { $match: { field: 'value' } },
      { $group: { _id: '$field', count: { $sum: 1 } } },
      { $project: { _id: 0, field: '$_id', count: 1 } }
    ];

    // 执行聚合查询
    const result = await collection.aggregate(pipeline).toArray();

    // 处理查询结果
    console.log(result);

  } catch (error) {
    console.error('Error: ', error);
  } finally {
    // 关闭连接
    await client.close();
  }
}

convertAggregation();