Question 1

How do I use URLPreview in a SwiftUI app?

Accepted Answer

Since URLPreview is an NSURL extension, integrate it by calling fetchPageInfo within a task or onAppear block in SwiftUI, but you'll need to manually handle UI display as it only provides data, not views.

Question 2

URLPreview vs building a custom HTML parser for metadata?

Accepted Answer

URLPreview simplifies things by using Kanna for parsing, making it faster for basic previews, but a custom parser offers more control for complex metadata or specific website structures.

Question 3

Does URLPreview cache the fetched previews to avoid repeated network calls?

Accepted Answer

No, URLPreview does not include caching functionality. Developers must implement their own caching solution if optimizing for performance with repeated URL accesses.

Question 4

Can URLPreview extract all Open Graph tags from a webpage?

Accepted Answer

It focuses on title, description, and preview image via HTML parsing, which covers common Open Graph tags, but it won't fetch additional OG metadata like video or audio without modification.

Question 5

What happens if a webpage has no preview image available?

Accepted Answer

URLPreview returns nil for the previewImage in the completion block, so you should handle this in your UI by providing a fallback or placeholder image.

Question 6

Is URLPreview compatible with Swift Package Manager?

Accepted Answer

The README doesn't specify, but as a GitHub repository, it may require manual integration or adaptation for SPM; check the repo for recent updates or community forks.

URLPreview

What is URLPreview?

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