I have this document Schema: { "success": true, "data": { "_id": "624c0ac20f0df948f8bf8cf1", "collection_name": "pog7", "by": "soeww", "private": "$2a$10$U3dRJxUQLm9GvuS5g3qkF.fMVJCdxrLAarFiGQ900EarayWBvrZya", "fens": [ { "fen": "pog", "san": "d4", "_id": "624c0ac20f0df948f8bf8cf2" } ], "__v": 0 } } is there a function in mongoose to…
I have searched for a while now and not really finding a clear enough answer to understand how to do it. I have chart data saved in MongoDB on a minute time-base (Unix timestamp). Now I understand that if I…
I have a large set of records in this schema: { username: "[email protected]", timestamp: 1646006400000 //unix timestamp in milliseconds amount: 100 } Given an arbitrary range of dates, I need to find the change in average amount value vs a…
I have this schema to represent a user: const UserSchema = mongoose.Schema({ username: { type: String, required: false }, social: [{ facebook: { type: String, required: false }, twitter: { type: String, required: false } }] }); how can I…
How do we enable PyMongo to read from the nearest? This field db.read_preference is read-only now. from pymongo import ReplicaSetConnection from pymongo import ReadPreference db = ReplicaSetConnection('localhost:27017', replicaSet='rs1')['my_db'] db.read_preference = ReadPreference.NEAREST db.tag_sets = [{'secondaries': 1}]
I have a simple node express app and I just try to connect to my MongoDB atlas. But It pulls this error. I also deleted node_modules and download all packages again but it doesn't work. I get this error: Cannot…
I'm trying to connect my MERN stack application to MongoDB by using mongoose but I'm getting this error even if I am using dotenv file or directly. I've search for many solutions but didn't work for me, please help if…
I am trying to count how many times does a particular value occur in a collection. { _id:1, field1: value, field2: A, } { _id:2, field1: value, field2: A, } { _id:3, field1: value, field2: C, } { _id:4, field1:…
I want to delete a document after a specified amount of time. Like if the user selects 24 hours then it should be auto-deleted after 24 hours. I heard about TTL in mongo but in that, I have to specify…
I am trying to link two tables in mongo db. I have a User table where user has an _id. And a News table where the columns should be _id(for the news) and the userId (to link news to a…