protected virtual string Validate(DonationSubmissionModel model)
{
if (model.Amount < 1.0m)
{
return("Donation amount must be at least $1.00.");
}
return(null);
}
public async Task <DonationResultModel> Prepare(DonationSubmissionModel model, int id, string userId, string urlRoot)
{
var result = new DonationResultModel
{
Id = id,
UserId = userId,
Error = Validate(model),
PaymentType = PaymentType
};
if (result.HasError)
{
return(result);
}
result = await DoPreparation(model, id, userId, urlRoot, result);
return(result);
}
public async Task <IActionResult> Prepare([FromBody] DonationSubmissionModel model)
{
if (!ModelState.IsValid)
{
var errors = ModelState.ConcatErrors();
return(BadRequest(errors));
}
var userId = User.GetId();
model.Amount = Math.Round(model.Amount, 2);
// Create the donation record.
var donation = new Donation
{
Amount = model.Amount,
Message = model.Message,
Public = model.Public,
PaymentType = model.PaymentType,
PaymentId = "",
PayerId = "",
UserId = userId,
State = PaymentState.Initialized,
Date = DateTimeOffset.Now
};
DbContext.Donations.Add(donation);
await DbContext.SaveChangesSafe();
var payment = await _donationService.Prepare(model, donation.Id, userId, Request.GetUri().GetLeftPart(UriPartial.Authority));
if (payment.HasError)
{
donation.State = PaymentState.Failed;
await DbContext.SaveChangesSafe();
return(BadRequest(payment.Error));
}
donation.PaymentId = payment.PaymentId;
donation.TokenId = payment.TokenId;
donation.State = PaymentState.Processing;
await DbContext.SaveChangesSafe();
return(Ok(payment));
}
protected abstract Task <DonationResultModel> DoPreparation(DonationSubmissionModel model, int id, string userId, string urlRoot, DonationResultModel result);
protected override async Task <DonationResultModel> DoPreparation(DonationSubmissionModel model, int id, string userId, string urlRoot, DonationResultModel result)
{
var userInfo = await GetUserInfo(userId) ?? new UserPaymentInfo
{
UserName = "******",
Email = "",
Id = ""
};
var amt = Math.Round(model.Amount, 2).ToString("0.00");
var context = GetContext();
var payment = new Payment
{
experience_profile_id = Config["Authentication:PayPal:ProfileID"],
intent = "sale",
payer = new Payer
{
payment_method = "paypal",
payer_info = new PayerInfo
{
first_name = userInfo.UserName,
last_name = userInfo.Id,
email = userInfo.Email
}
},
transactions = new List <Transaction>
{
new Transaction
{
description = "Nakama Network Donation",
invoice_number = id.ToString(),
amount = new Amount
{
currency = "USD",
total = amt,
details = new Details
{
subtotal = amt
}
},
item_list = new ItemList
{
items = new List <Item>
{
new Item
{
name = "Nakama Network Donation",
price = amt,
quantity = "1",
currency = "USD"
}
}
}
}
},
redirect_urls = new RedirectUrls
{
return_url = urlRoot + "/donate/update",
cancel_url = urlRoot + "/donate/cancel"
}
};
try
{
var serverPayment = Payment.Create(context, payment);
result.RedirectUrl = serverPayment.links.First(x => x.rel == "approval_url").href;
result.PaymentId = serverPayment.id;
result.TokenId = serverPayment.token;
}
catch
{
result.Error = "An error has occurred trying to submit your payment. Please try again later. " +
"You have not been charged.";
}
result.State = GetState(payment.state);
return(result);
}