salix/print/templates/email/payment-update/payment-update.js

const Component = require(`${appPath}/core/component`);
const db = require(`${appPath}/core/database`);
const emailHeader = new Component('email-header');
const emailFooter = new Component('email-footer');

module.exports = {
    name: 'payment-update',
    async serverPrefetch() {
        this.payMethod = await this.fetchPayMethod(this.clientId);

        if (!this.payMethod)
            throw new Error('Something went wrong');
    },
    computed: {
        accountAddress: function() {
            return this.payMethod.iban.slice(-4);
        },
    },
    methods: {
        fetchPayMethod(clientId) {
            return db.findOne(
                `SELECT
                    c.dueDay,
                    c.iban,
                    pm.name,
                    pm.code
                FROM client c
                    JOIN payMethod pm ON pm.id = c.payMethodFk
                WHERE c.id = :clientId`, {clientId: clientId});
        }
    },
    components: {
        'email-header': emailHeader.build(),
        'email-footer': emailFooter.build()
    },
    props: {
        clientId: {
            required: true
        }
    }
};