如何在循环中正确使用异步等待

Question

我有一个Express JS应用程序，该应用程序允许用户上传2个excel文件，一个相互依赖。我在前端使用dropzone，似乎一切正常。但是，后端仍然需要一些工作。在上传两个文件的过程中，并非所有数据都得到正确处理，有时在结果开始之前就不会插入报告。

//main loop
//arrange req.files array so that reports.xlsx will be processed first since results is dependent on reports
  if (req.files[0].originalname == "results.xlsx") move(req.files, 0, 1);

  req.files.forEach(async file => {
    let jsonPath = path.join(__dirname, "..", "uploads", file.filename);
    let jsonString = fs.readFileSync(jsonPath, "utf8");

    // Parse a file
    let workSheetsFromFile = xlsx.parse(jsonPath);

    let fieldNames = workSheetsFromFile[0].data[0];
    let resultArray = workSheetsFromFile[0].data;
    // number of rows of user data to process
    let numOfRows = resultArray.length - 1;
    let fileName = file.originalname.split(".")[0];

    //check if field names are correct in both reports or results
    error = checkFieldNames(fieldNames, fileName);
    if (error) {
      return res.status(422).send(error);
    }

    //check if the data is of the correct format in each row of reports or results
    error = checkData(fileName, resultArray, numOfRows);

    if (error) {
      return res.status(422).send(error);
    } else {
      //there are no errors process data in reports or results
      let doneUploading = await uploadData(fileName, resultArray, request, user, clientIP);
      console.log("doneUploading", doneUploading);
      return res.status(200).send(req.file);
    }
  });

doneUploading功能

async function uploadData(fileName, resultArray, request, user, clientIP) {


if (fileName == "reports") {

//Loop Through the Records in the Report Table Array and insert the Uploaded 
//table values into live table
for (let i = 1; i <= resultArray.length - 1; i++) {

  var qryInsertReport = await request.query(`INSERT INTO tblLabReport ....`;);
}
} 
else if (fileName == "results") {

for (let i = 1; i <= resultArray.length - 1; i++) {


  var qryInsertResult = await request.query(`INSERT INTO tblLabResult ....;
}


var reportUpload = await request.query(`SELECT * FROM tblLabReport`);

var resultUpload = await request.query(`SELECT * FROM tblLabResult`);

console.log("reportUpload", reportUpload);
console.log("resultUpload", resultUpload);


}

//Attempt to Delete Files that were Uploaded
fs.readdir(DIRECTORY, (err, files) => {
if (err) throw err;

for (const file of files) {
  fs.unlink(path.join(DIRECTORY, file), err => {
    if (err) throw err;
  });
  }
  });

console.log("Done checking and inserting reports");
return true;
}