Go'da ijtimoiy tarmoq videosini yuklab olish

Success, Medias va ko'rsatkichli Error maydonli struct xato kodini satr qidiruvi emas, maydon qiladi. Tipni lokal va kichik saqlang — javobdagi yangi ixtiyoriy maydon uni e'tiborsiz qoldiradigan dekodni buza olmaydi.

type Media struct {
	Type string `json:"type"`
	URL  string `json:"url"`
}

type Resolved struct {
	Success bool    `json:"success"`
	Medias  []Media `json:"medias"`
	Error   *struct {
		Code    string `json:"code"`
		Message string `json:"message"`
	} `json:"error"`
}

http.NewRequestWithContext muddatni olib yuradi; url.QueryEscape havolani kodlaydi. Bitta sarlavha, bitta dekod. Sizning tomoningizda boshqa hech narsa kerak emas — cookie yo'q, sessiya yo'q, brauzer yo'q.

func resolve(ctx context.Context, link string) (*Resolved, error) {
	u := "https://api.saveapi.org/v1/download?url=" + url.QueryEscape(link)
	req, _ := http.NewRequestWithContext(ctx, http.MethodGet, u, nil)
	req.Header.Set("Authorization", "Bearer sk_live_xxxx")

	res, err := http.DefaultClient.Do(req)
	if err != nil {
		return nil, err
	}
	defer res.Body.Close()

	var out Resolved
	return &out, json.NewDecoder(res.Body).Decode(&out)
}

Media URL to'g'ri platforma CDN'iga ishora qiladi. Javob tanasidan faylga io.Copy fayl hajmidan qat'i nazar xotirani tekis ushlaydi; API baytlarni hech qachon proksi qilmaydi.

ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
defer cancel()

data, err := resolve(ctx, "https://www.instagram.com/reel/ABC123/")
if err != nil || !data.Success {
	log.Fatal(err, data.Error.Code)
}

res, _ := http.Get(data.Medias[0].URL)   // to'g'ridan-to'g'ri CDN
defer res.Body.Close()
f, _ := os.Create("video.mp4")
defer f.Close()
io.Copy(f, res.Body)                      // oqim, xotiraga emas

UPSTREAM_TIMEOUT va UPSTREAM_ERROR ikkinchi urinishga loyiq va hech narsa turmaydi. PRIVATE_CONTENT va MEDIA_NOT_FOUND yakuniy va har safar 0.1 kredit turadi — ularga qayta urinish sikli o'sha javobga kredit sarflash usuli. Qayta uriniladigan to'plamni bitta joyda saqlang.

Har javobda X-RateLimit-Limit, X-RateLimit-Remaining va pullik kalitda X-Credits-Remaining keladi. Alohida balans chaqiruvisiz cheklanishdan oldin sekinlashish uchun shu yetarli.