private async Task <PayPalAccessToken> GetPayPalAccessTokenAsync(HttpClient http)
{
byte[] bytes = Encoding.GetEncoding("iso-8859-1").GetBytes($"{configuration["PayPal:clientId"]}:{configuration["PayPal:secret"]}");
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, "/v1/oauth2/token");
request.Headers.Authorization = new AuthenticationHeaderValue("Basic", Convert.ToBase64String(bytes));
var form = new Dictionary <string, string>
{
["grant_type"] = "client_credentials"
};
request.Content = new FormUrlEncodedContent(form);
HttpResponseMessage response = await http.SendAsync(request);
string content = await response.Content.ReadAsStringAsync();
PayPalAccessToken accessToken = JsonConvert.DeserializeObject <PayPalAccessToken>(content);
return(accessToken);
}
private async Task <PayPalPaymentCreatedResponse> CreatePaypalPaymentAsync(HttpClient http, PayPalAccessToken accessToken, double total, string currency)
{
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, "v1/payments/payment");
request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", accessToken.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 = total,
currency = currency
}
}
})
});
request.Content = new StringContent(JsonConvert.SerializeObject(payment), Encoding.UTF8, "application/json");
HttpResponseMessage response = await http.SendAsync(request);
string content = await response.Content.ReadAsStringAsync();
PayPalPaymentCreatedResponse payPalPaymentCreated = JsonConvert.DeserializeObject <PayPalPaymentCreatedResponse>(content);
return(payPalPaymentCreated);
}
private async Task <PayPalPaymentExecutedResponse> ExecutePaypalPaymentAsync(HttpClient http, PayPalAccessToken accessToken, string paymentId, string payerId)
{
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, $"v1/payments/payment/{paymentId}/execute");
request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", accessToken.access_token);
var payment = JObject.FromObject(new
{
payer_id = payerId
});
request.Content = new StringContent(JsonConvert.SerializeObject(payment), Encoding.UTF8, "application/json");
HttpResponseMessage response = await http.SendAsync(request);
string content = await response.Content.ReadAsStringAsync();
PayPalPaymentExecutedResponse executedPayment = JsonConvert.DeserializeObject <PayPalPaymentExecutedResponse>(content);
return(executedPayment);
}
