const cCurser = await client
.db("Database")
.collection("Collection")
.findOne({
_id: ObjectId(Filter)
}).then(function(item){
Obj = item;}
);
I'm trying to query the MongoDB by the _id but it returns Promise { }. please help me to retrieve the data in it.
Error detected:ReferenceError: ObjectId is not defined
add this before your query:
import mongoose from 'mongoose';
const { ObjectId } = mongoose.Types;
OR:
use this:
const cCurser = await client
.db("Database")
.collection("Collection")
.findOne({
_id: new mongoose.Types.ObjectId(Filter)
}).then(function(item){
Obj = item;}
);
Firstly, don't mix await syntax with the then syntax.
Either use await
let Obj = null;
const cCurser = await client
.db("Database")
.collection("Collection")
.findOne({
_id: ObjectId(Filter)
});
//Use Obj
Or the then syntax. Here you will have to write the rest of the code dependent on Obj inside then().
let Obj = null;
const cCurser = client
.db("Database")
.collection("Collection")
.findOne({
_id: ObjectId(Filter)
}).then(function(item){
Obj = item;
//Use Obj
}
);
Also based on your edit,it seems you have not imported ObjectId method from Mongo.
let mongo = require('mongodb');
let ObjectId = mongo .ObjectID
```
