Добавьте файлы проекта.

PlaylistShared.Pwa/Services/TokenStorage.cs

@@ -0,0 +1,31 @@
+using Microsoft.JSInterop;
+
+namespace PlaylistShared.Pwa.Services;
+
+public class TokenStorage
+{
+    private readonly IJSRuntime _js;
+    private const string TokenKey = "jwt_token";
+    private const string RefreshTokenKey = "refresh_token";
+
+    public TokenStorage(IJSRuntime js) => _js = js;
+
+    public async Task SetTokensAsync(string token, string refreshToken)
+    {
+        await _js.InvokeVoidAsync("localStorage.setItem", TokenKey, token);
+        await _js.InvokeVoidAsync("localStorage.setItem", RefreshTokenKey, refreshToken);
+    }
+
+    public async Task<(string? token, string? refreshToken)> GetTokensAsync()
+    {
+        var token = await _js.InvokeAsync<string>("localStorage.getItem", TokenKey);
+        var refreshToken = await _js.InvokeAsync<string>("localStorage.getItem", RefreshTokenKey);
+        return (token, refreshToken);
+    }
+
+    public async Task ClearTokensAsync()
+    {
+        await _js.InvokeVoidAsync("localStorage.removeItem", TokenKey);
+        await _js.InvokeVoidAsync("localStorage.removeItem", RefreshTokenKey);
+    }
+}