/// <summary>
/// Executes PayPal's <b>GetExpressCheckoutDetails</b> function in order
/// to return PayPal <see cref="CustomerDetails" />.
/// </summary>
/// <param name="payload">
/// Metadata necessary to facilitate a successful
/// <b>GetExpressCheckoutDetails</b> call. Payload will be converted to
/// key-value format.
/// </param>
/// <param name="expressCheckoutUri">Default PayPal ExpressCheckout HTTP URI.</param>
/// <returns>
/// A <see cref="Task" /> of <see cref="string" />, representing a
/// serialised <see cref="CustomerDetails" /> instance.
/// </returns>
public string GetExpressCheckoutDetails(
GetExpressCheckoutDetailsPayload payload, string expressCheckoutUri)
{
var queryString =
ExpressCheckoutMetadataFactory
.CreateGetExpressCheckoutDetailsQueryString(payload);
using (var webClient = new WebClient()) {
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
return(webClient.DownloadString(
new Uri(string.Concat(expressCheckoutUri, "?", queryString))));
}
}
/// <summary>
/// Executes PayPal's <b>SetExpressCheckout</b> function in order to
/// return a PayPal Access Token.
/// </summary>
/// <param name="payload">
/// Metadata necessary to facilitate a successful
/// <b>SetExpressCheckout</b> call. Payload will be converted to key-value
/// format.
/// </param>
/// <param name="encoding">Text encoding to apply during byte-to-text conversion.</param>
/// <param name="expressCheckoutURI">Default PayPal ExpressCheckout HTTP URI.</param>
/// <returns>Raw metadata, in key-value format, containing a PayPal Access Token.</returns>
public string SetExpressCheckout(SetExpressCheckoutPayload payload,
Encoding encoding, string expressCheckoutURI)
{
var setExpressCheckoutMetadata =
ExpressCheckoutMetadataFactory.CreateSetExpressCheckoutMetadata(
payload);
using (var webClient = new WebClient()) {
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
var response = webClient.UploadValues(expressCheckoutURI,
setExpressCheckoutMetadata);
return(encoding.GetString(response));
}
}
/// <summary>
/// <see cref="DoExpressCheckoutPayment" /> asynchronous equivalent.
/// <seealso cref="DoExpressCheckoutPayment" />
/// </summary>
/// <param name="payload">
/// Metadata necessary to facilitate a successful
/// <b>DoExpressCheckoutPayment</b> call. Payload will be converted to
/// key-value format..
/// </param>
/// <param name="expressCheckoutUri">Default PayPal ExpressCheckout HTTP URI.</param>
/// <returns>
/// A <see cref="Task" /> of <see cref="string" />, representing a
/// serialised <see cref="TransactionResults" /> instance.
/// </returns>
public async Task <string> DoExpressCheckoutPaymentAsync(
DoExpressCheckoutPaymentPayload payload,
string expressCheckoutUri)
{
var queryString =
ExpressCheckoutMetadataFactory
.CreateDoExpressCheckoutPaymentQueryString(payload);
using (var webClient = new WebClient()) {
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
return(await webClient.DownloadStringTaskAsync(
new Uri(string.Concat(expressCheckoutUri, "?", queryString))));
}
}