How are private front-ends built without APIs? (self.asklemmy)

submitted 5 months ago by governorkeagan to c/asklemmy@lemmy.ml

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I'm referring to projects like redlib or invidious.

I was thinking about doing something similar for a local second-hand marketplace and got curious. Redlib seems to use token spoofing to get past rate limits and Invidious doesn't even use the official YouTube API.

The only way I thought of, which would be slow, is to scrape the site (like you would with Beautiful Soup).

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[-] bjoern_tantau@swg-empire.de 9 points 5 months ago

That's good to know, I'll look into that some more. I was thinking that it might be slow if I'm having to scrape each page, every time a user changes categories (or something similar).

Well, it's as slow as the website you're scraping. Could actually be faster if you don't have to execute a lot of bullshit JavaScript. And for the rest clever caching should help.

In terms of technology you're looking for XSLT, Xpath, CSS selectors and whatever parsers are available for your language of choice. Don't ever attempt to use regex for scraping.

[-] meekah@lemmy.world 6 points 5 months ago

Don't ever attempt to use regex for scraping.

seconded

[-] brokenlcd@feddit.it 5 points 5 months ago

Don't ever attempt to use regex for scraping.

Proceeds to implement a scraper in bash with grep and awk because it's the only way i know how to

[-] SubArcticTundra@lemmy.ml 3 points 5 months ago

Why not at least use Python?

[-] brokenlcd@feddit.it 1 points 5 months ago

I've always been searching for the time to learn python, but between uni and work i wake up at 5 and go back home at 10; + they where not going to pay me for this fix

Tldr; couldn't be fucked to study a whole other language in my nonexistent free time for a fix that they wouldn't pay me for anyways

[-] governorkeagan 1 points 5 months ago

You've given me a great jumping off point, thank you!

this post was submitted on 22 Jul 2024

41 points (100.0% liked)

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