Parsing HTML to get JSON swift

Question

I'm new with Swift and am trying to get the JSON data from HTML I grabbed. I get the HTML from a website and there's one line in the whole result that has the data. Setup like: var obj = *JSON data*

How can I parse through the string results to only get that line and convert the data (right side of the equal sign) to JSON?

Here's my code to get the data (testURL is the url of the website):

if let url = testURL {
    do {
          let contents = try String(contentsOf: url)
          print(contents)
       } catch {
          // contents could not be loaded
       }
    } else {
       // the URL was bad!
 }

Where is the HTML code?

Mojtaba Hosseini
– Mojtaba Hosseini

2019-05-26 23:45:35 +00:00
Commented May 26, 2019 at 23:45 — Mojtaba Hosseini
– Mojtaba Hosseini, Commented May 26, 2019 at 23:45

Community · Accepted Answer · 2020-06-20 09:12:55Z

2

You can use this pod SwiftSoup to parse HTML

This block of code iterate over tags like script and get its attributes like src

if let url = testURL {
    do {
        let contents = try String(contentsOf: url)
        print(contents)
        do {
            let doc: Document = try SwiftSoup.parse(contents)
            for item in try doc.select("script") {
                let json = try item.attr("src")
                print(json)
            }
        } catch Exception.Error(let type, let message) {
            print(message)
        } catch {
            print("error")
        }
    } catch {
        // contents could not be loaded
    }
} else {
    // the URL was bad!
}

Replace script with json tag and src with attribute containing json

Don't forget to add import SwiftSoup

Hope you get the desired result.

edited Jun 20, 2020 at 9:12

CommunityBot

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answered May 27, 2019 at 1:09

Muhammad Maaz Ul Haq

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2 Comments

fphelp Over a year ago

Hello, I added SwiftSoup and used your code, but when I replace "src" with the obj, which is the variable name that's pointed to the JSON, it just prints out the whole HTML received (from print(contents)). But the json variable does not print anything. What do you mean by JSON tag? I also looked through the docs before writing this and couldn't find/try anything that helped. What I want is inside a <script>. But the HTML result has multiple <script>s

Muhammad Maaz Ul Haq Over a year ago

Give me your html or URL to fetch html

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