NemAn/NemAnCore/SpotifyHelper.cs

using Blazored.LocalStorage;
using GrpcShared.DTO;
using GrpcShared.DTO.Db;
using NemAnBlazor.Services.Interfaces;

namespace NemAnBlazor
{
    public static class SpotifyHelper
    {
        public static async Task<string?> TryRefreshToken
        (IAuthClientService authService,
        TokenMessage msg,UserResponse user,
        ILocalStorageService localStorage,
        IIdentityClientService identityService)
        {
            var refreshResponse = await authService.RefreshAccessToken(msg);

            if (refreshResponse.AccessToken != null)
            {
                await identityService.UpdateTokenAsync(new UserResponse
                {
                    Id = user.Id,
                    Token = refreshResponse.AccessToken,
                    RefreshToken = user.RefreshToken
                });
                return refreshResponse.AccessToken;
            }
            else return null;
        }
    }
}