///<summary>This is the required method for IHttpExecuteInterceptor. This method allows us to hijack our own requests and add headers or other values to the context.
///Google assumes that this method will attach needed Authorization headers, which we must use a Bearer token for.</summary>
public System.Threading.Tasks.Task InterceptAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
BearerToken.AuthorizationHeaderAccessMethod bearerTokenInterceptor = new BearerToken.AuthorizationHeaderAccessMethod();
//Overwrite the Authorization header with a bearer token.
bearerTokenInterceptor.Intercept(request, AccessToken);
//We can't use Task.CompletedTask because we are not on .NET 4.6 at this time. Simply run an empty task.
return(System.Threading.Tasks.Task.Run(() => { }));
}
public async Task InterceptAsync(HttpRequestMessage request, CancellationToken taskCancellationToken)
{
var tokenResult = await _accessTokenProvider.RequestAccessToken(
new AccessTokenRequestOptions
{
Scopes = new[] { "https://www.googleapis.com/auth/drive.appdata" }
});
if (tokenResult.TryGetToken(out AccessToken token))
{
Console.WriteLine(
$"token:[ expires: {token.Expires} scopes: {string.Join("|", token.GrantedScopes)}");
_accessMethod.Intercept(request, token.Value);
}
}