如何使用node.js在mongodb中插入文档数组？

Question

I want to insert array of document to mongodb using node.js but while inserting it's only inserting first data only.

[{
  "userid": "5664",
  "name": "Zero 2679",
  "number": "1234562679",
  "status": "contact",
  "currentUserid": "Abcd"
 }, 
 {
  "userid": "5665",
  "name": "Zero 3649",
  "number": "1234563649",
  "status": "contact",
  "currentUserid": "Xyz"
}]

Sample code

collection.insert([{"userid": userid,"name": name,"number": number,"status": status,"currentUserid": currentUserid}], function(err, docs) {
    if (err) {
        res.json({error : "database error"});
    }else {
       collection.find({currentUserid:currentUserid}).toArray(function(err, users) {
          res.send(users);
       });
    }});

But it still inserting first value only can you please tell me how to insert all these documents.

Please kindly go through my post and suggest me some solution.

Answer 1

In your sample code you are adding only 1 user.

db.collection('myCollection').insert([doc1, doc2]); inserts two documents using bulk write.

See documentation here: https://docs.mongodb.org/manual/reference/method/db.collection.insert/

From your sample, you can do:

var data = [{
  "userid": "5664",
  "name": "Zero 2679",
  "number": "1234562679",
  "status": "contact",
  "currentUserid": "Abcd"
 }, 
 {
  "userid": "5665",
  "name": "Zero 3649",
  "number": "1234563649",
  "status": "contact",
  "currentUserid": "Xyz"
}];
db.collection('myCollection').insert(data)
.then(function() {
  return db.collection('myCollection').find({number: {$in: ["1234563649", "1234562679"]}});
})
.then(function(res) {
  console.log(res);
});