salix/services/loopback/common/methods/ticket/getTotal.js

module.exports = Self => {
    Self.remoteMethod('getTotal', {
        description: 'Returns the total of a ticket',
        accessType: 'READ',
        accepts: [{
            arg: 'id',
            type: 'number',
            required: true,
            description: 'ticket id',
            http: {source: 'path'}
        }],
        returns: {
            type: 'number',
            root: true
        },
        http: {
            path: `/:id/getTotal`,
            verb: 'GET'
        }
    });

    Self.getTotal = async ticketFk => {
        let query = `SELECT vn.ticketGetTotal(?) AS amount`;
        let [total] = await Self.rawSql(query, [ticketFk]);

        return total.amount ? total.amount : 0.00;
    };
};