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Unity/Scripts/Network/WebProvider.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using Cysharp.Threading.Tasks;
+using UnityEngine.Networking;
+using System;
+using System.Threading;
+namespace BITKit.HttpNet
+{
+    [System.Serializable]
+    public sealed class UnityWebRequest : WebProvider
+    {
+        public override async UniTask<string> GetAsync(string url, CancellationToken cancellationToken = default)
+        {
+            await UniTask.SwitchToMainThread(cancellationToken);
+            using (var request = UnityEngine.Networking.UnityWebRequest.Get(url))
+            {
+                await request.SendWebRequest();
+                if (cancellationToken != default)
+                {
+                    if (cancellationToken.IsCancellationRequested)
+                    {
+                        throw new OperationCanceledException();
+                    }
+                }
+                if (request.result is UnityEngine.Networking.UnityWebRequest.Result.Success)
+                {
+                    return request.downloadHandler.text;
+                }
+                else
+                {
+                    var e = (request) switch
+                    {
+                        _ => "HttpError",
+                    };
+                    throw new System.Net.Http.HttpRequestException(e);
+                }
+            }
+        }
+        public override async UniTask<string> PostAsync<T>(string url, T value, CancellationToken cancellationToken = default)
+        {
+            await UniTask.SwitchToMainThread(cancellationToken);
+            switch (value)
+            {
+                case String _string:
+                    using (var request = UnityEngine.Networking.UnityWebRequest.Post(url, _string))
+                    {
+                        await request.SendWebRequest();
+                        return request.downloadHandler.text;
+                    }
+                case WWWForm _wwwForm:
+                    using (var request = UnityEngine.Networking.UnityWebRequest.Post(url, _wwwForm))
+                    {
+                        await request.SendWebRequest();
+                        return request.downloadHandler.text;
+                    }
+                default:
+                    throw new NotImplementedException();
+            }
+        }
+    }
+}