C# Requires Chilkat v11.0.0+

PayPal: Look up a subscription and its recent payments

See more PayPal Examples

Start with the PayPal subscription ID saved with the local customer. Display its status and next billing time, then list transactions for the previous 30 days with each gross amount and currency.

PayPal documentation

C#

bool success = false;

//  See Unlock Chilkat before making requests.
//  For the merchant's internal backoffice application. Load the sandbox token
//  from the merchant's credential store. Keep it out of publicly distributed apps.
//  See Get a PayPal access token.
Chilkat.Http http = new Chilkat.Http();
http.AuthToken = "SANDBOX_ACCESS_TOKEN";
Chilkat.HttpResponse resp = new Chilkat.HttpResponse();

http.SetUrlVar("id","SUBSCRIPTION_ID");

success = http.HttpNoBody("GET","https://api-m.sandbox.paypal.com/v1/billing/subscriptions/{$id}",resp);
if (success != true) {
    Debug.WriteLine("No HTTP response: " + http.LastErrorText);
    return;
}

if ((resp.StatusCode < 200) || (resp.StatusCode >= 300)) {
    Chilkat.JsonObject errorInfo = new Chilkat.JsonObject();
    errorInfo.Load(resp.BodyStr);
    Debug.WriteLine("HTTP " + Convert.ToString(resp.StatusCode) + " " + errorInfo.StringOf("name") + " " + errorInfo.StringOf("details[0].issue"));
    Debug.WriteLine("PayPal debug ID: " + errorInfo.StringOf("debug_id"));
    return;
}

Chilkat.JsonObject result = new Chilkat.JsonObject();
bool parsedResult = result.Load(resp.BodyStr);
if (parsedResult != true) {
    Debug.WriteLine("Expected a JSON response; HTTP " + Convert.ToString(resp.StatusCode));
    return;
}

Debug.WriteLine("Status: " + result.StringOf("status"));
Debug.WriteLine("Next billing: " + result.StringOf("billing_info.next_billing_time"));
Chilkat.CkDateTime now = new Chilkat.CkDateTime();
now.SetFromCurrentSystemTime();
Chilkat.JsonObject query = new Chilkat.JsonObject();
query.UpdateString("end_time",now.GetAsTimestamp(false));
now.AddDays(-30);
query.UpdateString("start_time",now.GetAsTimestamp(false));
success = http.HttpParams("GET","https://api-m.sandbox.paypal.com/v1/billing/subscriptions/{$id}/transactions",query,resp);
if (success != true) {
    Debug.WriteLine("No HTTP response: " + http.LastErrorText);
    return;
}

if ((resp.StatusCode < 200) || (resp.StatusCode >= 300)) {
    Chilkat.JsonObject historyError = new Chilkat.JsonObject();
    historyError.Load(resp.BodyStr);
    Debug.WriteLine("HTTP " + Convert.ToString(resp.StatusCode) + " " + historyError.StringOf("name") + " " + historyError.StringOf("details[0].issue"));
    Debug.WriteLine("PayPal debug ID: " + historyError.StringOf("debug_id"));
    return;
}

Chilkat.JsonObject history = new Chilkat.JsonObject();
bool parsedHistory = history.Load(resp.BodyStr);
if (parsedHistory != true) {
    Debug.WriteLine("Expected a JSON response; HTTP " + Convert.ToString(resp.StatusCode));
    return;
}

int i = 0;
while ((i < history.SizeOfArray("transactions"))) {
    history.I = i;
    Debug.WriteLine(history.StringOf("transactions[i].time") + "  " + history.StringOf("transactions[i].id") + "  " + history.StringOf("transactions[i].status") + "  "
         + history.StringOf("transactions[i].amount_with_breakdown.gross_amount.value") + " " + history.StringOf("transactions[i].amount_with_breakdown.gross_amount.currency_code"));
    i = i + 1;
}