TypeORM ManyToMany with createsQueryBuilder - node.js-typeorm

Question

I have, three entities, services, accounts, and the union of the two, contasservices:
Services:
#Entity({ name: 'services' })
export class ServiceEntity {
#PrimaryGeneratedColumn()
public id: number;
#OneToMany(type => AccountServiceEntity, x => x.service)
accountAndServices: AccountServiceEntity[];
#Column({ nullable: false, length: 150 })
public name: string;
}
Accounts:
#Entity({ name: 'accounts' })
export class AccountEntity {
#PrimaryGeneratedColumn()
public id: number;
#OneToMany(type => AccountServiceEntity, x => x.account)
accountAndServices: AccountServiceEntity[];
#Column({ nullable: false })
public account_type: number;
}
AccountsServices :
#Entity({ name: 'accounts_services' })
export class AccountServiceEntity {
#PrimaryGeneratedColumn()
public id: number;
#ManyToOne(() => ServiceEntity, x => x.accountAndServices,
{ primary: true, nullable: false })
service: ServiceEntity;
#ManyToOne(() => AccountEntity, x => x.accountAndServices,
{ primary: true, nullable: false })
account: AccountEntity;
#Column({ nullable: false })
public date_initial: Date;
}
How do I run a createQueryBuilder in my repository and get the following json back:
const query = this.repository.createQueryBuilder("...")
[
{
"account_name": "Gladson",
"serices": [
{
"description": "xxxx",
"date_initial": "31/07/2021"
"value": 10,00
},
{
"description": "yyy",
"date_initial": "31/07/2021"
"value": 2,00
}
]
}
]

Answer 1

Try this:
const queryBuilder = repository.createQueryBuilder('Account')
queryBuilder
.leftJoinAndSelect('Account.accountAndServices', 'accountAndServices')
.leftJoinAndSelect('accountAndServices.service', 'service')
.select(['Account.id', 'accountAndServices.id', 'service.description'])
await queryBuilder.getMany()