request-hook.ts

@genericController()
@Entity()
export class Shop {
    @PrimaryGeneratedColumn()
    id: number

    /** ------ other properties ------ **/

    @authorize.readonly()
    @Column()
    createdBy:User

    @preSave("post")
    assignCreatedBy(@bind.user() user:JwtClaims){
        // @bind.user() is the same as ctx.user
        // is the JWT claims of Authorization request header
        this.createdBy = { id: user.userId } as User
    }
}