问mongodb Async-await Post方法

EN

{
  issue: "5ca2b1f80c2e9a13fcd5b913",
  user: "5ca2b1f80c2e9a13fcd5b90b",
  record: {
    votary: 80,
    development: 90,
    test: 100
  },
  date: "2019-03-01T15:00:00.000Z"
};

try {
  const task = new TaskModel(req.body);
  const result= await task.save()
  return api.responseJSON(res, 200, result);
} catch (e)
{
// Error
}

export const post: Operation = async (req: express.Request, res: express.Response) => {
    try {
        const param: any = {};
        const task = new TaskModel(req.body);
        const newTask = await task.save()
        return api.responseJSON(res, 200, newTask);
    } catch(err) {
        // treat error
    }
}

    export const post: Operation = async (req: express.Request, res: express.Response) => {
        try {
            let param: any = {};
            const user = {
                id: req.body.user.id
            };
            const issue = {
                id: req.body.issue.id
            };
            param = req.body;
            param.user = user.id
            param.issue = issue.id
            const task = new TaskModel(param);
            const newTask = await task.save()
            return api.responseJSON(res, 200, newTask);
        } catch (e) {
            api.responseJSON(res, 400, e)
        }
    };