package api import ( "io/ioutil" "net/http" "strings" "sync" "github.com/patrickmn/go-cache" "github.com/tidwall/gjson" ) type Tag struct { Tag string Display string Sort string PostCount int64 Posts []Submission Background string BackgroundId string } func (client *Client) FetchTag(tag string, sort string, page string) (Tag, error) { cacheData, found := client.Cache.Get(tag + sort + page + "-tag") if found { return cacheData.(Tag), nil } req, err := http.NewRequest("GET", "https://api.imgur.com/post/v1/posts/t/"+tag, nil) if err != nil { return Tag{}, err } q := req.URL.Query() q.Add("client_id", client.ClientID) q.Add("include", "cover") q.Add("page", page) switch sort { case "newest": q.Add("filter[window]", "week") q.Add("sort", "-time") case "best": q.Add("filter[window]", "all") q.Add("sort", "-top") case "popular": default: q.Add("filter[window]", "week") q.Add("sort", "-viral") sort = "popular" } req.URL.RawQuery = q.Encode() res, err := http.DefaultClient.Do(req) if err != nil { return Tag{}, err } body, err := ioutil.ReadAll(res.Body) if err != nil { return Tag{}, err } data := gjson.Parse(string(body)) wg := sync.WaitGroup{} posts := make([]Submission, 0) data.Get("posts").ForEach( func(key, value gjson.Result) bool { wg.Add(1) go func() { defer wg.Done() posts = append(posts, Submission{ Id: value.Get("id").String(), Title: value.Get("title").String(), Link: strings.ReplaceAll(value.Get("url").String(), "https://imgur.com", ""), Cover: Media{ Id: value.Get("cover_id").String(), Type: value.Get("cover.type").String(), Url: strings.ReplaceAll(value.Get("cover.url").String(), "https://i.imgur.com", ""), }, Points: value.Get("point_count").Int(), Upvotes: value.Get("upvote_count").Int(), Downvotes: value.Get("downvote_count").Int(), Comments: value.Get("comment_count").Int(), Views: value.Get("view_count").Int(), IsAlbum: value.Get("is_album").Bool(), }) }() return true }, ) wg.Wait() tagData := Tag{ Tag: tag, Display: data.Get("display").String(), Sort: sort, PostCount: data.Get("post_count").Int(), Posts: posts, Background: "/" + data.Get("background_id").String() + ".webp", } client.Cache.Set(tag + sort + page + "-tag", tagData, cache.DefaultExpiration) return tagData, nil }