public static NameValueCollection CreateSetExpressCheckoutMetadata(
SetExpressCheckoutPayload payload) {
return new NameValueCollection {
{"METHOD", payload.Method},
{"VERSION", payload.Version},
{"USER", payload.User},
{"PWD", payload.Password},
{"SIGNATURE", payload.Signature},
{"SUBJECT", payload.Subject},
{"LOCALECODE", payload.LocaleCode},
{"RETURNURL", payload.ReturnUrl},
{"CANCELURL", payload.CancelUrl},
{"REQBILLINGADDRESS", payload.RequireBillingAddress},
{"NOSHIPPING", payload.NoShipping},
{"PAYMENTREQUEST_0_PAYMENTACTION", payload.Action}, {
"PAYMENTREQUEST_0_AMT",
payload.Amount.ToString(CultureInfo.InvariantCulture)
},
{"PAYMENTREQUEST_0_CURRENCYCODE", payload.CurrencyCode}, {
"MAXAMT", payload.Amount.ToString(CultureInfo.InvariantCulture)
},
{"L_PAYMENTREQUEST_0_NAME0", payload.PaymentRequestName},
{"L_PAYMENTREQUEST_0_DESC0", payload.PaymentRequestDescription}, {
"L_PAYMENTREQUEST_0_AMT0",
payload.Amount.ToString(CultureInfo.InvariantCulture)
},
{"L_PAYMENTREQUEST_0_QTY0", payload.PaymentRequestQuantity}
};
}
public static NameValueCollection CreateSetExpressCheckoutMetadata(
SetExpressCheckoutPayload payload)
{
return(new NameValueCollection {
{ "METHOD", payload.Method },
{ "VERSION", payload.Version },
{ "USER", payload.User },
{ "PWD", payload.Password },
{ "SIGNATURE", payload.Signature },
{ "SUBJECT", payload.Subject },
{ "LOCALECODE", payload.LocaleCode },
{ "RETURNURL", payload.ReturnUrl },
{ "CANCELURL", payload.CancelUrl },
{ "REQBILLINGADDRESS", payload.RequireBillingAddress },
{ "NOSHIPPING", payload.NoShipping },
{ "PAYMENTREQUEST_0_PAYMENTACTION", payload.Action }, {
"PAYMENTREQUEST_0_AMT",
payload.Amount.ToString(CultureInfo.InvariantCulture)
},
{ "PAYMENTREQUEST_0_CURRENCYCODE", payload.CurrencyCode }, {
"MAXAMT", payload.Amount.ToString(CultureInfo.InvariantCulture)
},
{ "L_PAYMENTREQUEST_0_NAME0", payload.PaymentRequestName },
{ "L_PAYMENTREQUEST_0_DESC0", payload.PaymentRequestDescription }, {
"L_PAYMENTREQUEST_0_AMT0",
payload.Amount.ToString(CultureInfo.InvariantCulture)
},
{ "L_PAYMENTREQUEST_0_QTY0", payload.PaymentRequestQuantity }
});
}
/// <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>
/// 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()) {
var response = webClient.UploadValues(expressCheckoutURI,
setExpressCheckoutMetadata);
return encoding.GetString(response);
}
}
/// <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="SetExpressCheckout" /> asynchronous equivalent.
/// <seealso cref="SetExpressCheckout" />
/// </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>
/// A <see cref="Task" /> of <see cref="string" />, representing raw
/// metadata, in key-value format, containing a PayPal Access Token.
/// </returns>
public async Task<string> SetExpressCheckoutAsync(
SetExpressCheckoutPayload payload,
Encoding encoding, string expressCheckoutURI) {
var setExpressCheckoutMetadata =
ExpressCheckoutMetadataFactory.CreateSetExpressCheckoutMetadata(
payload);
using (var webClient = new WebClient()) {
var response =
await webClient.UploadValuesTaskAsync(expressCheckoutURI,
setExpressCheckoutMetadata);
return encoding.GetString(response);
}
}