我有一个用例，用于查找不同状态（如活动、非活动、进行中等）的计数，
文档看起来像这样-

{
    "id": "1"
    "status": "active"
},
{ 
    "id": "2"
    "status": "active"
},
{
  "id": "3"
  "status": "in-active"
},
{
  "id": "4"
  "status": "in-progress"
}

我需要输出像-

{
    "active": 2,
    "in-active": 1,
    "in-progress": 1
}

我指的是这个答案，但无法得到预期的输出-
Mongo count occurrences of each value for a set of documents
我的代码如下-

const mongoClient = require('mongodb').MongoClient;
const test = async () => {
    const mongoUri = "mongodb://localhost:27017/";
    const dbClientConnection = await mongoClient.connect(mongoUri, {
        useNewUrlParser: true,
        useUnifiedTopology: true
    });
    const db = await dbClientConnection.db("database name here");
    const collection = await db.collection("collection name here");
    let result = await collection.aggregate([
    {
      $group: {
        _id: "$status",
        sum: { $sum: 1 }
      }
    },
    {
      $group: {
        _id: null,
        status: {
          $push: { k: "$_id", v: "$sum" }
        }
      }
    },
    {
      $replaceRoot: {
        newRoot: { $arrayToObject: "$status" }
      }
    }
    ])
    console.log("result => ", result);
    return result;
}
test();