Sequelize m2m

role.model.ts

import * as Sequelize from 'sequelize';
import { sequelize } from '../instances/sequelize';

export const Role = sequelize.define('roles', {
  id: {
    type: Sequelize.INTEGER,
    autoIncrement: true,
    primaryKey: true
  },
  roleName: {
    type: Sequelize.STRING,
    unique: true
  }
}, {
  tableName: 'roles'
});

user.ctrl.ts

import { Body, ContentType, Delete, Get, JsonController, Param, Post, Req, Res } from 'routing-controllers';
import { User, UserModel } from '../models/user.model';
import { Role } from '../models/role.model';

@JsonController('/users')
export class UserController {

  constructor(private userService: UserService) {
  }
  
  /* ... */
  
  @Get('r/testr') // test function 
    testRole(@Res() response: express.Response) {
      User.create({name: 'some user'}).then((user: any) => {

        Role.create({roleName: 'some role'}).then((role: any) => {
          user.setRoles([role]); // user.setRoles is not a function 
        });
      });

      return User.find({where: {username: 'Mike'}, include: [{model: Role}]});
    }
}

user.model.ts

import * as Sequelize from 'sequelize';
import { sequelize } from '../instances/sequelize';

export const User = sequelize.define('users', {
  id: {
    type: Sequelize.INTEGER,
    autoIncrement: true,
    primaryKey: true
  },
  name: Sequelize.STRING,
}, {
  tableName: 'users'
});

userRole.model.ts

import * as DataTypes from 'sequelize';
import { sequelize } from '../instances/sequelize';
import { User } from './user.model';
import { Role } from './role.model';

export const UserRole = sequelize.define('users_role', {
  role_id: {
    type: DataTypes.INTEGER,
    unique: 'user_role_roleable'
  },
  user_id: {
    type: DataTypes.INTEGER
  }
}, {
  tableName: 'users_roles'
});
User.belongsToMany(Role, {
  through: 'users_roles'
});

Role.belongsToMany(User, {
  through: 'users_roles'
});