URL construction fails with umlauts in string

[Arestronaut]

Bug report

When receiving a url string from the server containing special characters like umlauts ü, ä the URL initialisation fails and therefore the decoding.

let urlString = "https://zürich.ch/"
guard let url = URL(string: urlString) else {
    fatalError("Could not construct URL")
}

print(url)

Will producte Fatal error: Could not construct URL

This can easily be fixed using addingPercentageEncoding

let urlString = "https://zürich.ch/"
let sanitizedURLString = urlString.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)

guard let sanitizedURLString = sanitizedURLString, let url = URL(string: sanitizedURLString) else {
    fatalError("Could not construct URL")
}

print(url)

Will produce https://z%C3%BCrich.ch/

Versions

Please fill in the versions you're currently using:

• apollo-ios SDK version: 0.50.0
• Xcode version: 13.4
• Swift version: 5.5
• Package manager: SPM

[calvincestari]

Thanks for the bug report @Arestronaut. Is this specifically a problem only when receiving URLs from the server or also if you try connect to a URL with special characters in it?