Python'da ijtimoiy tarmoq videosini yuklab olish

Bu yerda httpx ni tanlashga faqat timeout argumenti ham yetadi: osilib qolgan manba so'rovingizni ushlab turmasligi, balki yiqitishi kerak. O'ttiz soniya oqilona shift — gateway'ning upstream byudjeti undan past.

import httpx

r = httpx.get(
    "https://api.saveapi.org/v1/download",
    params={"url": "https://www.instagram.com/reel/Cx1a2b3c/"},
    headers={"Authorization": "Bearer sk_live_xxxx"},
    timeout=30,
)
data = r.json()

Postda bitta video bo'ladimi yoki o'nta rasm — javobda o'sha bitta massiv turadi. Aralash postlarda turlar post tartibida saqlanadi: ikki rasm va bitta klipli karusel ikkita image va bitta video yozuvini beradi. type bo'yicha shoxlansangiz, bir xil kod hamma platformani qoplaydi.

for media in data["medias"]:
    if media["type"] == "video":
        print("video:", media["url"])
    elif media["type"] == "image":
        print("image:", media["url"])
    elif media["type"] == "audio":
        print("track:", media["url"])

Ba'zi manbalar bir nechta rendition chiqaradi va bunday javobda formats[] bo'ladi — har birida tayyor havola va aniq hajmi (MB). Ikkinchi so'rov ham, format parametri ham yo'q: ro'yxatni mijoz tomonida filtrlab, chegarangizga sig'adigan eng kattasini oling.

best = None
for fmt in data.get("formats", []):
    if fmt["size_mb"] <= 45 and (best is None or fmt["size_mb"] > best["size_mb"]):
        best = fmt

url = best["url"] if best else data["medias"][0]["url"]

Timeout yoki upstream xatosi yana bitta urinishga arziydi. Yopiq post, o'chirilgan post yoki qo'llab-quvvatlanmaydigan domen esa arzimaydi — ikkinchi chaqiruv o'sha javobni qaytaradi va hisoblanadigan xatolarda ikkinchi kreditni ham yeydi. Kodlarni ikki to'plamga ajrating va matnga emas, to'plamga qarab qaror qiling.

RETRY = {"UPSTREAM_TIMEOUT", "UPSTREAM_ERROR"}

def download(link: str, attempts: int = 2) -> dict:
    for attempt in range(attempts):
        data = httpx.get(API, params={"url": link}, headers=HEAD, timeout=30).json()
        if data["success"]:
            return data
        if data["error"]["code"] not in RETRY:
            raise RuntimeError(data["error"]["message"])   # qayta urinish yordam bermaydi
    raise RuntimeError("source unavailable")

Har javobda kalitning daqiqadagi chegarasi va undan qolgani bor, pullik kalitlarda esa paketdagi qolgan kredit ham. Balansni taymer bilan so'rab turish o'rniga shularni qo'lingizdagi javobdan o'qing.

print(r.headers["X-RateLimit-Limit"])       # kalitning daqiqadagi chegarasi
print(r.headers["X-RateLimit-Remaining"])   # shu daqiqada qolgani
print(r.headers.get("X-Credits-Remaining")) # paketdagi qolgan kredit

Yechilgan manzil to'g'ridan-to'g'ri manba CDN'iga ishora qiladi, ya'ni baytlar API orqali o'tmaydi. Uni oqim bilan diskka yozing: 4K reelni xotiraga yuklash — konteynerni o'ldirishning eng tez yo'li.

with httpx.stream("GET", data["medias"][0]["url"]) as source:
    with open("reel.mp4", "wb") as out:
        for chunk in source.iter_bytes():
            out.write(chunk)