Zig
Zig
PayPal - Create Stored Credit Card Payment
See more PayPal Examples
Creates a credit card payment using a card ID from a previously stored credit card (where the credit card was stored in PayPal's vault).Note: For sandbox calls, you can use the credit card numbers provided in your sandbox test accounts.
Note: This example requires Chilkat v9.5.0.65 or greater.
Chilkat Zig Downloads
const std = @import("std");
const chilkat = @import("chilkat");
pub fn main(init: std.process.Init) !void {
const alloc = init.arena.allocator();
// Note: Requires Chilkat v9.5.0.65 or greater.
// This requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
// Load our previously obtained access token. (see PayPal OAuth2 Access Token)
const json_token = try chilkat.JsonObject.init();
defer json_token.deinit();
json_token.loadFile("qa_data/tokens/paypal.json") catch {};
// Build the Authorization request header field value.
const sb_auth = try chilkat.StringBuilder.init();
defer sb_auth.deinit();
// token_type should be "Bearer"
sb_auth.append(try json_token.stringOf(alloc, "token_type")) catch {};
sb_auth.append(" ") catch {};
sb_auth.append(try json_token.stringOf(alloc, "access_token")) catch {};
// Make the initial connection.
// A single REST object, once connected, can be used for many PayPal REST API calls.
// The auto-reconnect indicates that if the already-established HTTPS connection is closed,
// then it will be automatically re-established as needed.
const rest = try chilkat.Rest.init();
defer rest.deinit();
const b_auto_reconnect = true;
rest.connect("api.sandbox.paypal.com", 443, true, b_auto_reconnect) catch {
std.debug.print("{s}\n", .{try rest.getLastErrorText(alloc)});
return;
};
// ----------------------------------------------------------------------------------------------
// The code above this comment could be placed inside a function/subroutine within the application
// because the connection does not need to be made for every request. Once the connection is made
// the app may send many requests..
// ----------------------------------------------------------------------------------------------
// We previously stored the user's credit card data in PayPal's vault.
// See Store Card in PayPal Vault for sample code.
// Build the JSON containing the stored credit card information and transaction information.
const json = try chilkat.JsonObject.init();
defer json.deinit();
json.setEmitCompact(false);
json.updateString("intent", "sale") catch {};
json.updateString("payer.payment_method", "credit_card") catch {};
json.updateString("payer.funding_instruments[0].credit_card_token.credit_card_id", "CARD-52W84623JH8043102LA3CLGA") catch {};
json.updateString("payer.funding_instruments[0].credit_card_token.payer_id", "user12345") catch {};
json.updateString("transactions[0].amount.total", "6.70") catch {};
json.updateString("transactions[0].amount.currency", "USD") catch {};
json.updateString("transactions[0].description", "This is the payment transaction description.") catch {};
std.debug.print("{s}\n", .{try json.emit(alloc)});
// The JSON created by the above code is this:
// {
// "intent": "sale",
// "payer": {
// "payment_method": "credit_card",
// "funding_instruments": [
// {
// "credit_card_token": {
// "credit_card_id": "CARD-52W84623JH8043102LA3CLGA",
// "payer_id": "user12345"
// }
// }
// ]
// },
// "transactions": [
// {
// "amount": {
// "total": "6.70",
// "currency": "USD"
// },
// "description": "This is the payment transaction description."
// }
// ]
// }
rest.addHeader("Authorization", try sb_auth.getAsString(alloc)) catch {};
rest.addHeader("Content-Type", "application/json") catch {};
// Send the POST request containign the JSON in the request body, and get the JSON response.
const sb_json_request = try chilkat.StringBuilder.init();
defer sb_json_request.deinit();
json.setEmitCompact(true);
json.emitSb(sb_json_request) catch {};
const sb_json_response = try chilkat.StringBuilder.init();
defer sb_json_response.deinit();
rest.fullRequestSb("POST", "/v1/payments/payment", sb_json_request, sb_json_response) catch {
std.debug.print("{s}\n", .{try rest.getLastErrorText(alloc)});
return;
};
json.setEmitCompact(false);
json.loadSb(sb_json_response) catch {};
std.debug.print("Response Status Code = {d}\n", .{rest.getResponseStatusCode()});
// Did we get a 201 success response?
if (rest.getResponseStatusCode() != 201) {
std.debug.print("{s}\n", .{try json.emit(alloc)});
std.debug.print("Failed.\n", .{});
return;
}
// Sample JSON response is shown below.
std.debug.print("{s}\n", .{try json.emit(alloc)});
// Demonstrate how to access a few parts of the JSON response..
std.debug.print("credit_card_id: {s}\n", .{try json.stringOf(alloc, "payer.funding_instruments[0].credit_card_token.credit_card_id")});
std.debug.print("subtotal: {s}\n", .{try json.stringOf(alloc, "transactions[0].amount.details.subtotal")});
std.debug.print("refund href: {s}\n", .{try json.stringOf(alloc, "transactions[0].related_resources[0].sale.links[1].href")});
std.debug.print("success\n", .{});
// ------------------------------------------------
// A sample JSON response:
// {
// "id": "PAY-12T35751GS725073SLA3CQNQ",
// "create_time": "2016-11-23T23:37:26Z",
// "update_time": "2016-11-23T23:37:31Z",
// "state": "approved",
// "intent": "sale",
// "payer": {
// "payment_method": "credit_card",
// "funding_instruments": [
// {
// "credit_card_token": {
// "credit_card_id": "CARD-52W84623JH8043102LA3CLGA",
// "payer_id": "user12345",
// "last4": "9974",
// "type": "visa",
// "expire_month": "9",
// "expire_year": "2021"
// }
// }
// ]
// },
// "transactions": [
// {
// "amount": {
// "total": "6.70",
// "currency": "USD",
// "details": {
// "subtotal": "6.70"
// }
// },
// "description": "This is the payment transaction description.",
// "related_resources": [
// {
// "sale": {
// "id": "4F194018A1618453G",
// "create_time": "2016-11-23T23:37:26Z",
// "update_time": "2016-11-23T23:37:31Z",
// "amount": {
// "total": "6.70",
// "currency": "USD"
// },
// "state": "completed",
// "parent_payment": "PAY-12T35751GS725073SLA3CQNQ",
// "links": [
// {
// "href": "https://api.sandbox.paypal.com/v1/payments/sale/4F194018A1618453G",
// "rel": "self",
// "method": "GET"
// },
// {
// "href": "https://api.sandbox.paypal.com/v1/payments/sale/4F194018A1618453G/refund",
// "rel": "refund",
// "method": "POST"
// },
// {
// "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAY-12T35751GS725073SLA3CQNQ",
// "rel": "parent_payment",
// "method": "GET"
// }
// ],
// "fmf_details": {},
// "processor_response": {
// "avs_code": "X",
// "cvv_code": "M"
// }
// }
// }
// ]
// }
// ],
// "links": [
// {
// "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAY-12T35751GS725073SLA3CQNQ",
// "rel": "self",
// "method": "GET"
// }
// ]
// }
//
}