Convert ObjectID (Mongodb) to String in JavaScript

Question

I want to convert ObjectID (Mongodb) to String in JavaScript. When I get a Object form MongoDB. it like as a object has: timestamp, second, inc, machine. I can\'t convert to

Answer 1

in the shell

ObjectId("507f191e810c19729de860ea").str

in js using the native driver for node

objectId.toHexString()

Answer 2

If someone use in Meteorjs, can try:

In server: ObjectId(507f191e810c19729de860ea)._str.

In template: {{ collectionItem._id._str }}.

Answer 3

Found this really funny but it worked for me:

    db.my_collection.find({}).forEach((elm)=>{

    let value = new String(elm.USERid);//gets the string version of the ObjectId which in turn changes the datatype to a string.

    let result = value.split("(")[1].split(")")[0].replace(/^"(.*)"$/, '$1');//this removes the objectid completely and the quote 
    delete elm["USERid"]
    elm.USERid = result
    db.my_collection.save(elm)
    })

Answer 4

In Js do simply: _id.toString()

For example:

const myMongoDbObjId = ObjectID('someId');
const strId = myMongoDbObjId.toString();
console.log(typeof strId); // string

Answer 5

You can use $toString aggregation introduced in mongodb version 4.0 which converts the ObjectId to string

db.collection.aggregate([
  { "$project": {
    "_id": { "$toString": "$your_objectId_field" }
  }}
])

Answer 6

this works, You have mongodb object: ObjectId(507f191e810c19729de860ea), to get string value of _id, you just say ObjectId(507f191e810c19729de860ea).valueOf();