Mongoose findbyid() return null

Question

I am trying to find a record in my mongo db by its id

No matter I use findbyid(), findone(id,...), it return null

here is my code. what is the solution?

Answer 1

Check your mongodb database, if _id is storaged as String, findById(id) can not found id. FindById(id) only finds ObjectId('yourId'). You might import database by using mongoimport and including _id in JSON, it's wrong, delete _id in imported JSON.