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插入 mongo db 后未获取 ops 数组

当我尝试使用函数插入到 mongo db 后移动图像时

var db = require('../config/dbconnect')
module.exports = {

    //addProduct:(product,callback)=>
    addProduct: (product, callback) => {
        //console.log(product)
        db.get().collection('product').insertOne(product).then((data) => {
            console.log(data)
            callback(data.ops[0]._id)
        })
    }
}

我收到这样的错误：

{
  acknowledged: true,
  insertedId: new ObjectId("61054e43cffb994774d37ab0")
}
(node:6964) UnhandledPromiseRejectionWarning: TypeError: Cannot read property '0' of undefined
    at E:\Nodejs\ecommerce\helpdesk\product_help.js:11:27
    at processTicksAndRejections (internal/process/task_queues.js:95:5)
(Use `node --trace-warnings ...` to show where the warning was created)
(node:6964) 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 .html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:6964) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
回答如下：

这是错误的第一次回调。尝试作为结果的第二个参数。

 db.get().collection('product').insertOne(product).then((error,data)=>
       {
         console.log(data)
         callback(data.ops[0]._id)
       })

本文标签： 插入 mongo db 后未获取 ops 数组

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