Función para extraer los datos del codigo de barras PDF417 de una cedula colombiana usando React Native Camera en Javascript

extraerCedulaColombiana.js

import moment from 'moment';


export function extractColDocumentData(data) {
  let dataString = data.barcodes[0]?.data.replaceAll('�', ' ');

  if (!dataString.includes('PubDSK_1')) {
    throw new Error('Invalid barcode data, only PubSub_1 is supported');
  }

  dataString = dataString.replace('PubDSK_1', '0');
  const sI = dataString.match('[a-zA-Z]').index;
  dataString = dataString.substring(sI - 10);
  const btIndex = dataString.match('[+]|-').index;
  let usableData = dataString.substring(0, btIndex + 1);
  usableData = usableData.replace(/  +/g, ' ');
  const dataArray = usableData.split(' ');

  const firstAlpha = dataArray[0].match('[a-zA-Z]').index;
  const idNumber = Number(dataArray[0].substring(0, firstAlpha)).toString();
  const lastName1 = capitalize(dataArray[0].substring(firstAlpha, dataArray[0].length));
  const lastName2 = dataArray.length > 3 ? capitalize(dataArray[1]) : undefined;
  const firstName1 = dataArray.length > 3 ? capitalize(dataArray[2]) : capitalize(dataArray[1]);
  const middleName = dataArray.length > 4 ? capitalize(dataArray[3]) : undefined;

  const extraData = dataArray.length > 4 ? dataArray[4] : dataArray.length > 3 ? dataArray[3] : dataArray[2];
  const genderIndex = extraData.match(/M|F/).index;
  const gender = extraData.substring(genderIndex, genderIndex + 1) === 'M' ? 'MALE' : 'FEMALE';
  const birthDate = moment(`${extraData.substring(genderIndex + 1, genderIndex + 9)}`, 'YYYYMMDD').toDate();
  const bloodType = extraData.substring(genderIndex + 15, genderIndex + 17);
  const municipalityCode = extraData.substring(genderIndex + 10, genderIndex + 12);
  const departmentCode = extraData.substring(genderIndex + 12, genderIndex + 15);

  return {
    idNumber,
    lastName1,
    lastName2,
    firstName1,
    middleName,
    gender,
    birthDate: birthDate,
    bloodType,
    fullName: `${firstName1}${middleName ? ` ${middleName}` : ''} ${lastName1} ${lastName2 || ''}`.trim(),
    municipalityCode,
    departmentCode,
  };
}

function capitalize(string) {
  return string.charAt(0).toUpperCase() + string.slice(1).toLowerCase();
}

Hola!

Has pensado en hacerlo funcional para códigos QR de las nuevas cédulas?

No he encontrado la forma de leer el QR, en el caso de las nuevas es mas facil leer el codigo que tiene en la parte posterior con OCR y extraer la info.