Blazor & WASM in combination to get statistics from Spotify API for performing the song analysis. With separate microservices for auth, Spotify, user data tracking, and application, connected through gRPC with Polly.
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Home.razor 2.5KB

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  1. @page "/home"
  2. @using Grpc.Core
  3. @using GrpcShared.DTO
  4. @using GrpcShared.DTO.Track
  5. @using NemAnBlazor.Services.Interfaces
  6. @using System.Net
  7. @inject Blazored.LocalStorage.ILocalStorageService localStorage
  8. @inject IStatsClientService spotifyService
  9. @inject ITrackClientService trackService
  10. @inject IAuthClientService AuthService
  11. <h3>Home</h3>
  12. <p>login radi</p>
  13. @code {
  14. protected override async Task OnInitializedAsync()
  15. {
  16. string tokenS = await localStorage.GetItemAsync<string>("token");
  17. string refreshT = await localStorage.GetItemAsync<string>("refresh_token");
  18. //tokenS = "BQBMgFm6jnFNWWeZEMGIRP_f-ENPid7Kw8JubAyuWAe4JK0S1DPFGlaAdZ_Fey6ePkCnz8-cqC0oyRmrciWUy5ISUTQKDe8PTQn4iBRMYCgM0n4GnS1xAErHJcm4Vpu2TAngk-4vQUOfTQRcedNTfCaHKP4uFJgTlTI7JHGrtB-_EZLnFcZ2OQe31oFQIJ1wM3ZtvwnN";
  19. TokenMessage token = new TokenMessage { Token = tokenS, RefreshToken = refreshT };
  20. try
  21. {
  22. CurrentTrackResponse track = await spotifyService.GetCurrentlyPlayingTrack(token);
  23. //if token expired, refresh it
  24. if (track.ResponseMsg == System.Net.HttpStatusCode.Unauthorized)
  25. {
  26. string? tempToken = await SpotifyHelper.TryRefreshToken(AuthService, token, localStorage);
  27. tokenS = tempToken == null ? tokenS : tempToken;
  28. //if refreshed token is null, that means that refresh token was invalid, so you should redirect to login
  29. }
  30. }
  31. catch (RpcException e)
  32. {
  33. if (e.StatusCode == StatusCode.Cancelled)
  34. {
  35. return;
  36. }
  37. throw;
  38. }
  39. //napravi komponentu koja ce da prikazuje sta trenutno slusas i passuj joj parametre
  40. //var trackById = await trackService.GetById(new GrpcShared.DTO.TrackByID.TrackRequest { TrackID = "4fy1A2WBTPX55mUI16TQXa", Token = tokenS });
  41. try
  42. {
  43. var items = await spotifyService.GetTopItems(new GrpcShared.DTO.TopItem.TopItemRequest { Token = tokenS, IsTracks = false, Offset = 5 });
  44. if (items.ResponseMsg == System.Net.HttpStatusCode.Unauthorized)
  45. {
  46. string? tempToken = await SpotifyHelper.TryRefreshToken(AuthService, token, localStorage);
  47. tokenS = tempToken == null ? tokenS : tempToken;
  48. }
  49. }
  50. catch (RpcException e)
  51. {
  52. if (e.StatusCode == StatusCode.Cancelled)
  53. {
  54. return;
  55. }
  56. throw;
  57. }
  58. }
  59. }