removing a string within nested array mongoose - node.js

Question

const AllPostsSchema = new Schema({
user: {
type: Schema.Types.ObjectId,
ref: 'users'
},
posts: [{
postid: {
type: String
},
title: {
type: String
},
category: {
type: String
},
subcategory: {
type: String
}, category: {
type: String
},
description: {
type: String
},
name: {
type: String
},
price: {
type: Number
},
email: {
type: String
},
phonenumber: {
type: Number
},
language: {
type: String
},
make: {
type: String
},
model: {
type: Number
},
odometer: {
type: Number
},
condition: {
type: String
},
state: {
type: String
},
town: {
type: String
},
city: {
type: String
},
links: [{ type: String }],
date: {
type: Date,
default: Date.now
}
}]
})
AllPosts.findOneAndUpdate({ 'user': req.query.userid },
{ $pull: { 'posts': { 'links': req.query.link } } }
)
.then(post => console.log(post))
i need to find a specific user and within that user match the post id then remove one of the links in links array. when I do it like above it removes the whole array instead i want it to remove specific link within links array in posts arrayy.
Each user has one or more than one posts. I need to update a single post of a specific user. if a user wants to delete an image i delete that from amazon s3 then, i need to remove the link from that post link array so it doesnt create broken img tags in the front end.
AllPosts.findOneAndUpdate({ 'user': req.query.userid, 'posts.postid': req.query.postid },
{ $pull: { 'links': req.query.link } }
)
.then(post => console.log(post))
this also didnt work.

Answer 1

Solved. For future reference :
AllPosts.findOneAndUpdate({ 'user': req.query.userid, 'posts.postid': req.query.postid },
{ $pull: { 'posts.$.links': req.query.link } }
)
.then(post => console.log(post))