public async Task <string> RequestAccessToken()
{
FormUrlEncodedContent tokenRequestContent = new FormUrlEncodedContent(new Dictionary <string, string>()
{
{ "grant_type", "client_credentials" }
});
httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic",
SpotifyHelpers.GetEncodedAuth(clientId, clientSecret));
HttpResponseMessage responseMessage = await httpClient.PostAsync(SpotifyConstants.RequestAccessTokenUrl,
tokenRequestContent);
authenticationType = SpotifyConstants.AuthenticationType.ClientCredentials;
return(await ProcessAuthorizationResponse(responseMessage));
}
public async Task <string> RefreshAccessToken()
{
if (authenticationType == SpotifyConstants.AuthenticationType.None)
{
throw new Exception("Client not authenticated yet.");
}
else if (authenticationType == SpotifyConstants.AuthenticationType.AuthorizationCode)
{
FormUrlEncodedContent refreshRequestContent = new FormUrlEncodedContent(new Dictionary <string, string>()
{
{ "grant_type", "refresh_token" },
{ "refresh_token", RefreshToken }
});
httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic",
SpotifyHelpers.GetEncodedAuth(clientId, clientSecret));
HttpResponseMessage responseMessage = await httpClient.PostAsync(SpotifyConstants.RequestAccessTokenUrl, refreshRequestContent);
return(await ProcessAuthorizationResponse(responseMessage));
}
else if (authenticationType == SpotifyConstants.AuthenticationType.ClientCredentials)
{
return(await RequestAccessToken());
}
else
{
throw new NotImplementedException("New authorization type not implemented");
}
}