var check = require('check-types'); var iso3166 = require('iso3166-1'); function sanitize(raw, clean) { // error & warning messages var messages = { errors: [], warnings: [] }; // target input param var country = raw['boundary.country']; // param 'boundary.country' is optional and should not // error when simply not set by the user if (check.assigned(country)){ // must be valid string if (!check.nonEmptyString(country)) { messages.errors.push('boundary.country is not a string'); } // must be a valid ISO 3166 code else if (!containsIsoCode(country.toUpperCase())) { messages.errors.push(country + ' is not a valid ISO2/ISO3 country code'); } // valid ISO 3166 country code, set alpha3 code on 'clean.boundary.country' else { // the only way for boundary.country to be assigned is if input is // a string and a known ISO2 or ISO3 clean['boundary.country'] = iso3166.to3(country.toUpperCase()); } } return messages; } function containsIsoCode(isoCode) { return iso3166.is2(isoCode) || iso3166.is3(isoCode); } module.exports = sanitize;