March 2025
Intermediate to advanced
286 pages
5h 53m
Italian
Content preview from Web API Cookbook
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Capitolo 3. URL e routing
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Introduzione
La maggior parte delle pagine web e delle applicazioni di hanno a che fare con gli URL in qualche modo. Può trattarsi di un'azione come la creazione di un link con determinati parametri di query o di un routing basato su URL in un'applicazione a pagina singola (SPA).
Un URL è solo una stringa che rispetta alcune regole di sintassi definite nella RFC 3986, "Uniform Resource Identifier (URI): Generic Syntax". Ci sono diversi componenti di un URL che potresti dover analizzare o manipolare. Non sempre è possibile farlo con tecniche come le espressioni regolari o la concatenazione di stringhe.
Oggi i browser supportano l'API URL. Questa API fornisce un costruttore URL che può creare, derivare e manipolare gli URL. All'inizio questa API era piuttosto limitata, ma gli aggiornamenti successivi hanno aggiunto utilità come l'interfaccia URLSearchParams che ha semplificato la creazione e la lettura delle stringhe di query.
Parti di un URL
Quando chiami il costruttore URL con una stringa che rappresenta un URL valido, l'oggetto risultante contiene proprietà che rappresentano i diversi componenti dell'URL. La Figura 3-1 mostra le proprietà più utilizzate:
protocol(1)-
Per gli URL web, questo è tipicamente
http:ohttps:(si noti che i due punti sono inclusi, ma non gli slash). Sono possibili altri protocolli come ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.