vendaweb-api/src/seller/seller.service.ts

/*
https://docs.nestjs.com/providers#services
*/

import { Injectable } from '@nestjs/common';
import { connectionOptions } from 'src/configs/typeorm.config';
import { Connection } from 'typeorm';
//import { DataSource } from 'typeorm';
import { EntityManager } from 'typeorm';


@Injectable()
export class SellerService {

    async getSellers(){
        const connection = new Connection(connectionOptions);
        await connection.connect();
        const queryRunner = connection.createQueryRunner();
        await queryRunner.connect();
        try {
            const sellers = await queryRunner.query('SELECT PCUSUARI.CODUSUR as "sellerId"  ' +
                                                    '      ,PCUSUARI.NOME    as "name"      ' +
                                                    '  FROM PCUSUARI                        ' +
                                                    ' WHERE PCUSUARI.DTTERMINO IS NULL      ' +
                                                    '   AND PCUSUARI.DTEXCLUSAO IS NULL     ' + 
                                                    '   AND PCUSUARI.TIPOVEND NOT IN (\'P\')    ');
                
            return sellers;
        } finally {
            await queryRunner.release();
            await connection.close();
        }
    }
 }