rl404/go-malscraper

package cacher

import (
    "net/http"

    "github.com/rl404/go-malscraper/internal"
    "github.com/rl404/go-malscraper/model"
)

// GetNews to get news detail information.
func (c *Cacher) GetNews(id int) (data *model.News, code int, err error) {
    // Get from cache.
    key := internal.GetKey(internal.KeyNews, id)
    if c.cacher.Get(key, &data) == nil {
        return data, http.StatusOK, nil
    }

    // Parse.
    data, code, err = c.api.GetNews(id)
    if err != nil {
        return nil, code, err
    }

    // Save to cache. Won't return error.
    _ = c.cacher.Set(key, data)
    return data, http.StatusOK, nil
}

// GetNewsList to get news list.
func (c *Cacher) GetNewsList(page int, tag string) (data []model.NewsItem, code int, err error) {
    // Get from cache.
    key := internal.GetKey(internal.KeyNewsList, page, tag)
    if c.cacher.Get(key, &data) == nil {
        return data, http.StatusOK, nil
    }

    // Parse.
    data, code, err = c.api.GetNewsList(page, tag)
    if err != nil {
        return nil, code, err
    }

    // Save to cache. Won't return error.
    _ = c.cacher.Set(key, data)
    return data, http.StatusOK, nil
}

// GetNewsTag to get news tag list.
func (c *Cacher) GetNewsTag() (data *model.NewsTag, code int, err error) {
    // Get from cache.
    key := internal.GetKey(internal.KeyNewsTag)
    if c.cacher.Get(key, &data) == nil {
        return data, http.StatusOK, nil
    }

    // Parse.
    data, code, err = c.api.GetNewsTag()
    if err != nil {
        return nil, code, err
    }

    // Save to cache. Won't return error.
    _ = c.cacher.Set(key, data)
    return data, http.StatusOK, nil
}