An extension that provides async support for URLSession data function on Linux. See: https://medium.com/hoursofoperation/use-async-urlsession-with-server-side-swift-67821a64fa91?sk=bc142f8d3b6a444253eea660646aa822

URLSession+async.swift

import Foundation
#if canImport(FoundationNetworking)
import FoundationNetworking
#endif

/// Defines the possible errors
public enum URLSessionAsyncErrors: Error {
    case invalidUrlResponse, missingResponseData
}

/// An extension that provides async support for fetching a URL
///
/// Needed because the Linux version of Swift does not support async URLSession yet.
public extension URLSession {
 
    /// A reimplementation of `URLSession.shared.data(from: url)` required for Linux
    ///
    /// - Parameter url: The URL for which to load data.
    /// - Returns: Data and response.
    ///
    /// - Usage:
    ///
    ///     let (data, response) = try await URLSession.shared.asyncData(from: url)
    func asyncData(from url: URL) async throws -> (Data, URLResponse) {
        return try await withCheckedThrowingContinuation { continuation in
            let task = self.dataTask(with: url) { data, response, error in
                if let error = error {
                    continuation.resume(throwing: error)
                    return
                }
                guard let response = response as? HTTPURLResponse else {
                    continuation.resume(throwing: URLSessionAsyncErrors.invalidUrlResponse)
                    return
                }
                guard let data = data else {
                    continuation.resume(throwing: URLSessionAsyncErrors.missingResponseData)
                    return
                }
                continuation.resume(returning: (data, response))
            }
            task.resume()
        }
    }
}

Hi!... This solution worked perfect in my Xcode project. But, when I try to build into a Ubuntu Server, the process sent me this message:
non-nominal type 'URLSession' (aka 'AnyObject') cannot be extended
Do you know what it means?.
Thank you in advance!

@GustavoHernandezP It is quite possible that the conditional import was missing. I have now added this to the gist to clarify that it too is required. Lemme know if this works!

Thanks for your answer. My solution was to extend the NSObject. With this modification, the process works fine!.

public extension NSObject {

That would also work - since you are avoiding using URLSession (which is the one defined in FoundationNetworking on Linux).

One small error, I believe. You shouldn't use URLSession.shared as this is an extension on URLSession itself and you may have different ones for different configurations (e.g. headers, auth, etc.)

One small error, I believe. You shouldn't use URLSession.shared as this is an extension on URLSession itself and you may have different ones for different configurations (e.g. headers, auth, etc.)

Very good point, fixed!