{
    "workingHours":
        [
            {
                "date":"2023-02-01",
                "amount":3,
                "freigegeben":false
            }
        ]
}

当我在我的请求正文中发送这个时，我在标题中得到错误。我如何手动添加[ and ]，使它成为一个数组？或者我如何解决这个问题？
这是我发送的请求：

public async saveWorkingHours(
    employeeId: string | null,
    workingHours: WorkingHours[]
  ): Promise<boolean> {

    var result = Object.entries(workingHours.map(wh => ({ ...wh, date: this.dateService.format(wh.date) })));
    try {
      await this.httpService.fetch(
        `${this.apiUrl}employees/${employeeId}/workingHours`,
        HttpMethod.PUT,
        {

          // This is my body, which starts with "{", instead of "[". That is the problem
          workingHours: workingHours.map(wh => ({ ...wh, date: this.dateService.format(wh.date) })),
        }
      );
      return true;
    } catch (e) {
      console.error(e);
      return false;
    }
  }

工作时间接口：

export interface WorkingHours {
  date: Date;
  amount: number;
  freigegeben: boolean;
}

这样做：

var convertedFormatData = [];

    var tempObj = {
      workingHours: workingHours.map((wh) => ({
        ...wh,
        date: this.dateService.format(wh.date),
      })),
    };
    convertedFormatData.push(tempObj);

我的输出如下所示：

{"convertedFormatData":[{"workingHours":[{"date":"2023-02-01","amount":3,"freigegeben":false},{ ...