mongoose findOne method is returning null - reactjs

Question

I am following this tutorial. Even though code is exactly what is mentioned in the tutorial, every time i run the graphql mutation query to update a particular tweet, it returns null and logs null on cmd.
I verified mongoose version is same (4.11.3).I believe something is wrong with findOne method as even in deleteTweet resolver, findOne is returning null. Is it because findOne needs a callback? but in the tutorial there is no callback passed. I also noticed that findOneAndUpdate works fine but it creates a new entry rather updating the existing tweet.
updateTweet: async (_, { id, ...rest}, { user }) => {
try {
await requireAuth(user)
const tweet = await Tweet.findOne({ id, user: user.id });
console.log(tweet);
if(!tweet) {
throw new Error('Not Found!');
}
return tweet.save();
} catch (e) {
throw e;
}
},
deleteTweet: async (_, { id }, { user }) => {
try {
await requireAuth(user);
const tweet = await Tweet.findOne({ id, user: user.id });
if(!tweet) {
throw new Error('Not Found !')
}
await tweet.remove();
return {
message: "Deleted Tweet Successfully"
}
}catch(error) {
throw error;
}
}
}
TweetSchema
import mongoose, { Schema } from 'mongoose';
const TweetSchema = new Schema({
text: {
type: String,
minlength: [5, 'Text need to be longer'],
maxlength: [144, 'Text is too long'],
},
user: {
type: Schema.Types.ObjectId,
ref: 'User'
},
favoriteCount: {
type: Number,
default: 0
}
}, { timestamps: true})
export default mongoose.model('Tweet', TweetSchema);

Answer 1

You have a typo. In MongoDB, the key field is _id NOT id. This is added automatically by MongoDB unless provided, so you need to change your code to use _id instead.