Javascript 无法在Express API中捕获然后处理Mongoose MongoDB错误

我想让前端知道是否存在验证问题，如重复提交ID.我已经准备了许多堆栈帖子，并try 了此代码中的各种解决方案……

总之，没有一个catch方法会捕获错误.这就像mongo或mongoose在我的代码得到查看之前抛出它:(

以下是我的代码

exports.createFinishedJob = async (req, res) => {

    try {
        console.log('createFinishedJob req.body', req.body);
        const finishedjob = new FinishedJob();
        if (req.body.jobSubmissionId) { finishedjob.jobSubmissionId = req.body.jobSubmissionId };
        if (req.body.customerId) { finishedjob.customerId = new ObjectId(req.body.customerId) };
        finishedjob.finishedjob = req.body.finishedjob;
        if (req.body.other) { finishedjob.other = req.body.other };
        console.log('createFinishedJob', finishedjob);

        let error;
        try {
            await finishedjob.save()
                .catch(err => console.log("HALLO err", err));
            // if (res && doc) {
            //     return res.json(doc);
            // } else {
            //     return doc
            // }
        } catch (err) {
            error = err;
            console.log("createFinishedJob error", error)
        }
    } catch (err) {
        console.error("Something went wrong")
        console.error(err)

    }
};

以下是错误:-

(node:85241) UnhandledPromiseRejectionWarning: MongoServerError: E11000 duplicate key error collection: Genaich.processingjobs index: jobSubmissionId_1 dup key: { jobSubmissionId: "1006006" }
    at /Users/urfx/phos-code/genaich/node_modules/mongodb/lib/operations/insert.js:50:33
    at /Users/urfx/phos-code/genaich/node_modules/mongodb/lib/operations/command.js:84:64
    at processTicksAndRejections (internal/process/task_queues.js:95:5)
(node:85241) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 2)

这是模型

const  mongoose  = require("mongoose");
const  Schema  =  mongoose.Schema;
const {ObjectId} = mongoose.Schema;
const SchemaTypes = mongoose.Schema.Types;
const  finishedjobSchema  =  new Schema(
    {
        customerId: { 
            type: ObjectId,
            ref: "User",
            required: false 
        },
        jobSubmissionId:{
            type: String, // if we don't get one from the customer use payment / order number
            unique: true,
            index: true
        },
        trashed: {
            type: Boolean
        },
        finishedjob: {
            type: Object
        },
        other: {
            type: SchemaTypes.Mixed // to start the ball rolling 
        }

    },
    { timestamps: true });

let  FinishedJob  =  mongoose.model("FinishedJob", finishedjobSchema);
module.exports  =  FinishedJob;