add URLSession++

Author: zunda-pixel

Sources/Helpers/URLSession+AsyncAwait.swift

@@ -1,3 +1,53 @@
+#if compiler(<6)
+  import HTTPTypes
+  import HTTPTypesFoundation
+
+  #if canImport(FoundationNetworking)
+    import FoundationNetworking
+  #endif
+
+  private enum HTTPTypeConversionError: Error {
+    case failedToConvertHTTPRequestToURLRequest
+    case failedToConvertURLResponseToHTTPResponse
+  }
+
+  extension URLSession {
+    /// Convenience method to load data using an `HTTPRequest`; creates and resumes a `URLSessionDataTask` internally.
+    ///
+    /// - Parameter request: The `HTTPRequest` for which to load data.
+    /// - Returns: Data and response.
+    public func data(for request: HTTPRequest) async throws -> (Data, HTTPResponse) {
+      guard let urlRequest = URLRequest(httpRequest: request) else {
+        throw HTTPTypeConversionError.failedToConvertHTTPRequestToURLRequest
+      }
+      let (data, urlResponse) = try await self.data(for: urlRequest)
+      guard let response = (urlResponse as? HTTPURLResponse)?.httpResponse else {
+        throw HTTPTypeConversionError.failedToConvertURLResponseToHTTPResponse
+      }
+      return (data, response)
+    }
+
+    /// Convenience method to upload data using an `HTTPRequest`, creates and resumes a `URLSessionUploadTask` internally.
+    ///
+    /// - Parameter request: The `HTTPRequest` for which to upload data.
+    /// - Parameter bodyData: Data to upload.
+    /// - Returns: Data and response.
+    public func upload(
+      for request: HTTPRequest,
+      from bodyData: Data
+    ) async throws -> (Data, HTTPResponse) {
+      guard let urlRequest = URLRequest(httpRequest: request) else {
+        throw HTTPTypeConversionError.failedToConvertHTTPRequestToURLRequest
+      }
+      let (data, urlResponse) = try await self.upload(for: urlRequest, from: bodyData)
+      guard let response = (urlResponse as? HTTPURLResponse)?.httpResponse else {
+        throw HTTPTypeConversionError.failedToConvertURLResponseToHTTPResponse
+      }
+      return (data, response)
+    }
+  }
+#endif
+
 #if canImport(FoundationNetworking) && compiler(<6)
   import Foundation
   import FoundationNetworking