Function getCitiesByDdd

pages/api/ddd/v1/[ddd].js:8–54

(request, response)

import { getDddsData } from '@/services/ddd';

async function getCitiesByDdd(request, response) {
  try {
    const requestedDdd = Number(request.query.ddd.toString()).toString();

    const lengthDdd = requestedDdd.length;

    if (lengthDdd !== 2) {
      throw new BadRequestError({
        message: 'DDD deve conter apenas 2 dígitos',
        type: 'ddd_error',
        name: 'DDD_INVALID',
      });
    }

    const allDddData = await getDddsData();

    const dddData = allDddData.filter(({ ddd }) => ddd === requestedDdd);

    if (dddData.length === 0) {
      throw new NotFoundError({
        message: 'DDD não encontrado',
        type: 'ddd_error',
        name: 'DDD_NOT_FOUND',
      });
    }

    const { state } = dddData[0];

    const cities = dddData.map((ddd) => ddd.city);

    const dddResult = {
      state,
      cities,
    };

    return response.status(200).json(dddResult);
  } catch (error) {
    if (error instanceof BaseError) {
      throw error;
    }

    throw new InternalError({
      message: 'Todos os serviços de DDD retornaram erro.',
      type: 'service_error',
    });
  }
}

export default app().get(getCitiesByDdd);