Sample API call using the sdk-core-dotnet library

CreateCreditCard.cs

using PayPal;
using PayPal.Api.Payments;
using System.Collections.Generic;

CreditCard credtCard = new CreditCard();
credtCard.expire_month = 11;
credtCard.expire_year = 2018;
credtCard.number = "4417119669820331";
credtCard.type = "visa";

Dictionary<string, string> config = new Dictionary<string, string>();
config.Add("endpoint", "http://api.mydomain.com");

try
{
    // Create APIContext, passing in optional accesstoken for APIs that require OAuth based authentication.
    string accessToken = new OAuthTokenCredential("Oauth clientid", "Oauth clientsecret", config).GetAccessToken();
    APIContext apiContext = new APIContext(accessToken);
    
    // Pass in SDK configuration parameters as required
    apiContext.Config = config;

    // Shoot an API request
    CreditCard createdCreditCard = credtCard.Create(apiContext);
}
catch (PayPal.Exception.PayPalException ex)
{
    // Handle error
}