fix(types): aggregate.addFields({score: { $meta: "textScore" } })

[herrerodani]

Prerequisites

• I have written a descriptive issue title
• I have searched existing issues to ensure the bug has not already been reported

Mongoose version

6.4.4

Node.js version

17.7.1

MongoDB server version

5.0.9

Description

Can't compile with Typescript

Steps to Reproduce

aggregate.addFields({
score: {
$meta: "textScore"
}
})

gives the following typescript error:

TS2322: Type '{ $meta: string; }' is not assignable to type 'AnyExpression'.
Object literal may only specify known properties, and '$meta' does not exist in type 'any[] | NativeDate | ArrayElemAt | First | Last | Reduce | ConcatArrays | Filter | Map | ObjectToArray | ... 134 more ... | Switch'.

Expected Behavior

No response

[IslandRhythms]

import * as mongoose from 'mongoose';

// 1. Create an interface representing a document in MongoDB.
interface IUser {
  name: string;
  email: string;
  avatar?: string;
}

// 2. Create a Schema corresponding to the document interface.
const userSchema = new mongoose.Schema<IUser>({
  name: { type: String, required: true },
  email: { type: String, required: true },
  avatar: String
});

// 3. Create a Model.
const User = mongoose.model<IUser>('User', userSchema);

run().catch(err => console.log(err));

async function run() {
  // 4. Connect to MongoDB
  await mongoose.connect('mongodb://localhost:27017/test');
  await mongoose.connection.dropDatabase();

  const user = new User({
    name: 'Bill',
    email: 'bill@initech.com',
    avatar: 'https://i.imgur.com/dM7Thhn.png'
  });
  await user.save();

  User.aggregate().addFields(
    { name: { $meta: "Bill" }}
  );
}