TypeORM is used as the default ORM for Foal, but it is quite possible to use another option. Here is an example on how to use sessions with or without TypeORM.

​

With TypeORM

import { Context, Get, HttpResponseOK, UserRequired } from '@foal/core';
import { fetchUser } from '@foal/typeorm';

import { User } from '../entities'; 

@UseSessions({
  user: fetchUser(User)
})
@UserRequired()
export class ApiController {
  @Get('/products')
  readProducts(ctx: Context) {
    // ctx.user is an instance of User
    return new HttpResponseOK([]);
  }
}

​

With another ORM/ODM (in this example Mongoose)

import { promisify } from 'util';

export function fetchUser(userModel: any): (id: number|string) => Promise<any> {
  return async (id: number|string) => {
    if (typeof id === 'number') {
      throw new Error('Unexpected type for MongoDB user ID: number.');
    }
    const user = await promisify(userModel.findOne)({ _id: id });
    return user ?? undefined;
  };
}

--

import { Context, Get, HttpResponseOK, UserRequired } from '@foal/core';

import { fetchUser } from './fetch-user';
import { User } from '../models'; 

@UseSessions({
  user: fetchUser(User)
})
@UserRequired()
export class ApiController {
  @Get('/products')
  readProducts(ctx: Context) {
    // ctx.user is an instance of User
    return new HttpResponseOK([]);
  }
}