insee-municipality-code/dist/getMunicipality.js

🇫🇷 Get the INSEE municipality code from postal code and name of French municipality

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _cities = require("../data/cities.json");

var _cities2 = _interopRequireDefault(_cities);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = (insee, { postalCode } = {}) => {
  if (!/^(\d{2}|2[AB])\d{3}$/i.test(insee)) {
    throw new Error("Please provide a valid argument");
  }
  const matchingCities = _cities2.default.filter(city => city.insee === insee);
  if (matchingCities.length === 0) {
    return null;
  }
  if (matchingCities.length === 1) {
    return matchingCities[0];
  }
  const postalCodeMatchingCities = matchingCities.filter(city => city.postalCode === String(postalCode));
  if (postalCodeMatchingCities.length === 0) {
    return matchingCities[0];
  }
  return postalCodeMatchingCities[0];
};