Пример #1
0
        /// <summary>
        /// Get access token to PayPal api
        /// </summary>
        /// <param name="http"></param>
        /// <returns>PayPal access token</returns>
        private async Task <PayPalAPIAccessToken> GetPayPalAccessToken(HttpClient http)
        {
            try {
                byte[] clientCredentials = Encoding.UTF8.GetBytes($"{configuration["PayPal:clientId"]}:{configuration["PayPal:clientSecret"]}");
                tokenMsg.Headers.Authorization = new AuthenticationHeaderValue("Basic", Convert.ToBase64String(clientCredentials));
                var formURL = new Dictionary <string, string>
                {
                    { "grant_type", "client_credentials" }
                };

                tokenMsg.Content = new FormUrlEncodedContent(formURL);

                HttpResponseMessage httpResponseMsg = await http.SendAsync(tokenMsg);

                string responseContent = await httpResponseMsg.Content.ReadAsStringAsync();

                PayPalAPIAccessToken palAcess = JsonConvert.DeserializeObject <PayPalAPIAccessToken>(responseContent);

                return(palAcess);
            }catch (Exception ex)
            {
                Console.WriteLine(ex);
                return(null);
            }
        }
Пример #2
0
        /// <summary>
        /// Send payment request to PayPal api
        /// </summary>
        /// <param name="http"></param>
        /// <param name="acess"></param>
        /// <param name="total"></param>
        /// <param name="currency"></param>
        /// <returns>PayPalApi response</returns>
        private async Task <PayPalAPIResponse> SendPayPalPayment(HttpClient http, PayPalAPIAccessToken acess, double total, string currency)
        {
            try
            {
                paymentMsg.Headers.Authorization = new AuthenticationHeaderValue("Bearer", acess.access_token);

                var payment = JObject.FromObject(new
                {
                    intent        = "sale",
                    redirect_urls = new
                    {
                        return_url = configuration["PayPal:returnUrl"],
                        cancel_url = configuration["PayPal:cancelUrl"]
                    },
                    payer        = new { payment_method = "paypal" },
                    transactions = JArray.FromObject(new[]

                    {
                        new
                        {
                            amount = new
                            {
                                total,
                                currency
                            }
                        }
                    })
                });

                paymentMsg.Content = new StringContent(JsonConvert.SerializeObject(payment), Encoding.UTF8, "application/json");

                HttpResponseMessage responseMessage = await http.SendAsync(paymentMsg);

                string content = await responseMessage.Content.ReadAsStringAsync();

                PayPalAPIResponse payPalPayment = JsonConvert.DeserializeObject <PayPalAPIResponse>(content);
                return(payPalPayment);
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex);
                return(null);
            }
        }
Пример #3
0
        /// <summary>
        /// Get redirected to PayPal payment page if response is successful
        /// </summary>
        /// <param name="total"></param>
        /// <param name="currency"></param>
        /// <returns>PayPal URL</returns>
        public async Task <string> GetRedirectURLToPayPal(double total, string currency)
        {
            try
            {
                return(Task.Run(async() =>
                {
                    HttpClient http = GetPayPalSandBoxAccountHttp();
                    PayPalAPIAccessToken accessToken = await GetPayPalAccessToken(http);
                    PayPalAPIResponse createdPayment = await SendPayPalPayment(http, accessToken, total, currency);
                    return createdPayment.links.First(a => a.rel == "approval_url").href;
                }

                                ).Result);
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex);
                return(null);
            }
        }