salix/back/methods/mrw-config/createShipment.js

const axios = require('axios');
const {DOMParser} = require('xmldom');
const fs = require('fs');
const ejs = require('ejs');

module.exports = Self => {
    Self.remoteMethod('createShipment', {
        description: 'Create an expedition and return a base64Binary label',
        accessType: 'WRITE',
        accepts: [{
            arg: 'expeditionFk',
            type: 'number',
            required: true
        }],
        returns: {
            type: ['object'],
            root: true
        },
        http: {
            path: `/createShipment`,
            verb: 'POST'
        }
    });

    Self.createShipment = async expeditionFk => {
        const models = Self.app.models;
        const mrw = await models.MrwConfig.findOne();

        const [expeditionData] = await Self.rawSql(
            `SELECT CASE co.code 
                        WHEN 'ES' THEN a.postalCode
                        WHEN 'PT' THEN LEFT(a.postalCode, 4)
                        WHEN 'AD' THEN REPLACE(a.postalCode, 'AD', '00')
                    END postalCode,
                    a.city,
                    a.street,
                    co.code countryCode,
                    c.fi,
                    c.name clientName,
                    c.phone,
                    DATE_FORMAT(e.created, '%d/%m/%Y') created, 
                    e.id expeditionId,
                    LPAD(IF(mw.params IS NULL, ms.serviceType, mw.serviceType), 4 ,'0') serviceType,
                    IFNULL(mw.weekdays, "N") weekDays
                FROM expedition e
                    JOIN packaging pa ON pa.id = e.packagingFk
                    JOIN ticket t ON e.ticketFk = t.id
                    JOIN agencyMode am ON am.id = t.agencyModeFk
                    JOIN mrwService ms ON ms.agencyModeCodeFk = am.code
                    LEFT JOIN mrwServiceWeekday mw ON mw.params = DATE_FORMAT(e.created, '%a') 
                    JOIN client c ON t.clientFk = c.id
                    JOIN address a ON t.addressFk = a.id
                    JOIN province p ON a.provinceFk = p.id
                    JOIN country co ON co.id = p.countryFk
                WHERE e.id = ?`, [expeditionFk]
        );

        const shipmentTemplate = fs.readFileSync(__dirname + '/createShipment.ejs', 'utf-8');
        const renderedShipment = ejs.render(shipmentTemplate, {mrw, expeditionData});
        const shipmentResponse = await axios.post(mrw.url, renderedShipment, {
            headers: {
                'Content-Type': 'application/soap+xml; charset=utf-8'
            }
        });
        const parser = new DOMParser();
        const shipmentXmlDoc = parser.parseFromString(shipmentResponse.data, 'text/xml');
        const shipmentId = shipmentXmlDoc.getElementsByTagName('NumeroEnvio')[0].textContent;

        const getLabelTemplate = fs.readFileSync(__dirname + '/getLabel.ejs', 'utf-8');
        const renderedGetLabel = ejs.render(getLabelTemplate, {mrw, shipmentId});
        const getLabelResponse = await axios.post(mrw.url, renderedGetLabel, {
            headers: {
                'Content-Type': 'text/xml; charset=utf-8'
            }
        });
        const getLabelXmlDoc = parser.parseFromString(getLabelResponse.data, 'text/xml');
        const base64Binary = getLabelXmlDoc.getElementsByTagName('EtiquetaFile')[0]?.textContent;

        const expedition = await models.Expedition.findById(expeditionFk);
        await expedition.updateAttribute('externalId', shipmentId);

        return base64Binary;
    };
};