stream 嵌套在nodejs对象中的对象数组

Question

我使用 nodejs 从 API 获取数据。
我得到一个具有这种结构的响应（响应由 stream 保存到 JSON 文件中）

{"data":{"total":40,"data":[{"date":"20220914","country":"PL","data1":1,"data2":2,"data3": 3,"data4":"4"},{"date":"20220914","country":"DE","data1":21,"data2":22,"data3":23,"data4": "24"},{"date":"20220914","country":"DE","data1":21,"data2":22,"data3":23,"data4":"24"},{ "日期":"20220914","国家":"PL","data1":1,"data2":2,"data3":3,"data4":"4"}], "total_page":1, "page":1,"page_size":100},"success":true,"code":"0","request_id":"123"}

现在我想读取 ZF7B44CFFAFD5C52223D5498196C8A2E7BZ 中的文件，对每个 object 进行一些转换，但是我无法通过 object4B6668CFFDE89131CBDD 检索它
问题是包含我感兴趣的数据的数组嵌套在.data.data object 键中，我不知道如何逐个获取数组的每个元素并对其进行修改。

 import { pipeline, Transform } from 'stream'; import { promisify } from 'util'; import fs from 'fs'; public async processData() { await this.api.getReport(); const reader = fs.createReadStream('./response.json'); const writer = fs.createWriteStream('properFormat.txt'); const asyncPipeline = promisify(pipeline); const newFormatedData = (object: Record<string, string>) => { //Here I would like to take into consideration only values for example with the key: date, country and data1 console.log(object.toString()); }; const formatData = new Transform({ objectMode: true, transform(chunk, encoding, done) { this.push(newFormatedData(chunk)); done(); }, }); asyncPipeline(reader, formatData, writer); }

感谢您对此的任何提示！