read.js

module.exports = [

    {
        method: "GET",
        path: "/products",
        handler: (req, res) => {

            // Paginations configs
            let page = req.query.page || 1;
            let limit = req.query.limit || 10;

            let options = {
                select: '_id name price',
                limit: limit,
                page: page
            };

            let query = {};

            // Optional Filters
            if (req.query.tag) {
                query.tags = req.query.tag;
            }

            if (req.query.name) {
                query.name = new RegExp(`^${req.query.name}`, "i");
            }

            let searchhash = hash.sha1(JSON.stringify(query) + JSON.stringify(options));

            // Procura a busca no cache do redis
            cache.getAsync(searchhash)
                .then(listcache => {

                    if (listcache) {

                        //Responde o cache para o usuário
                        console.log("Veio do cache");
                        listcache = JSON.parse(listcache);
                        res(listcache);
                    } else {

                        console.log("Não veio do cache");

                        ProductsSchema
                            .paginate(query, options)
                            .then(products => {

                                //Seta o Item no cache com expiracão de 2 minutos e responde o request
                                cache.setAsync(searchhash, JSON.stringify(products), 'EX', 120)
                                    .then(success => {
                                        res(products);
                                    }).catch(err => {
                                        res(Boom.internal(err));
                                    });
                            })
                            .catch(err => {
                                res(err);
                            });
                    }
                });

        },
        config: {
            validate: {
                query: {
                    page: Joi.number(),
                    limit: Joi.number(),
                    tag: Joi.string(),
                    name: Joi.string()
                }
            }
        }
    }
  
  // ...
  ]