Type is missing the following properties from type 'Schema<any, Model<any,any,any,any>, {}, {}>': add, childSchemas, clearIndexes, clone, and 37 more

Question

I've got a Mongoose on TypeScript, and it worked without interfaces and types defining, but when I decided to define types, the madness started. I've watched tons of manuals and topics and found nobody with a similar problem. I tried to define a model strictly by the manual, but I'm getting an error. Here's my model file:

 import mongoose from 'mongoose'; import { nanoid } from 'nanoid'; const GeoSchema = new mongoose.Schema({ type: { type: String, default: 'Point', enum: ['Point'], }, coordinates: { type: [Number, Number], index: '2dsphere', }, }); interface postInterface extends mongoose.Document { shortId: string; createdBy: string; title: string; description: string; tags: string[]; location: {}; images: string[]; contacts: { email: Boolean; wa: Boolean; phone: Boolean; }; type: 'available' | 'wanted'; is_moderated: Boolean; } export const PostSchema = new mongoose.Schema( { shortId: { type: String, index: true, default: () => nanoid(), }, createdBy: { type: String, index: true, }, title: String, description: String, tags: [String], location: GeoSchema, images: [String], contacts: { email: Boolean, wa: Boolean, phone: Boolean, }, type: { type: String, enum: ['available', 'wanted'] }, is_moderated: Boolean, }, { timestamps: true } ); export const Post = mongoose.model<postInterface>('Post', PostSchema);

When I import it into another file, on the line

return Post.create(post)

the linter gives me the error:

Type 'postInterface & { _id: any; }' is missing the following properties from type 'Schema<any, Model<any, any, any, any>, {}, {}>': add, childSchemas, clearIndexes, clone, and 37 more.ts(2740)

I googled examples of typescript model defining, and it looks like something that works for others doesn't work for me.

What am I doing wrong?

Update

Man, it was so obvious! The file where I imported the model looks like this:

import { Post, PostSchema } from '../models/post.model';
export class PostService {
    async createPost(post: any): Promise<typeof PostSchema | null> {
        return Post.create(post);
    }

    async getPostById(shortId: string): Promise<typeof PostSchema | null> {
        return Post.findOne({ shortId });
    }
}

So the thing was in Promise<typeof PostSchema | null> Promise<typeof PostSchema | null> . When I changed the code to this, the error was gone:

import { Post, postInterface } from '../models/post.model';
export class PostService {
    async createPost(post: any): Promise<postInterface | null> {
        return Post.create(post);
    }

    async getPostById(shortId: string): Promise<postInterface | null> {
        return Post.findOne({ shortId });
    }
}

Thanks to @lpizzinidev for pushing me in the right direction!

Answer 1

Man, it was so obvious! The file where I imported the model looks like this:

import { Post, PostSchema } from '../models/post.model';
export class PostService {
    async createPost(post: any): Promise<typeof PostSchema | null> {
        return Post.create(post);
    }

    async getPostById(shortId: string): Promise<typeof PostSchema | null> {
        return Post.findOne({ shortId });
    }
}

So the thing was in Promise<typeof PostSchema | null> Promise<typeof PostSchema | null> . When I changed the code to this, the error was gone:

import { Post, postInterface } from '../models/post.model';
export class PostService {
    async createPost(post: any): Promise<postInterface | null> {
        return Post.create(post);
    }

    async getPostById(shortId: string): Promise<postInterface | null> {
        return Post.findOne({ shortId });
    }
}

Thanks to @lpizzinidev for pushing me in the right direction!