# Adding Error Handler and Refactoring Code base ```javascript= export const errorHandler = (error) => { var message = { code: '', message: '' } switch (error) { case 4061: message.code = error message.message = 'E-mail already exist.' break case 4041: message.code = error message.message = 'Not a valid email address.' break default: // message.code = error.code // message.message = error.detail if (validator.equals(error.code + '', '23505')) { message.code = error.code message.message = error.detail } else { message.code = error.code message.message = error } break } return message } ```
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