Zig Requires Chilkat v11.0.0+
Zig
PayPal - Find Authorizations
See more PayPal Examples
Finds previously created authorizations.Chilkat Zig Downloads
const std = @import("std");
const chilkat = @import("chilkat");
pub fn main(init: std.process.Init) !void {
const alloc = init.arena.allocator();
// 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..
// ----------------------------------------------------------------------------------------------
// Clear the REST object of any headers or query params from previous requests.
rest.clearAllHeaders() catch {};
rest.clearAllQueryParams() catch {};
rest.addHeader("Authorization", try sb_auth.getAsString(alloc)) catch {};
// To find authoriaztions, we list payments and look for those
// containing "authorization" transactions
rest.addQueryParam("count", "100") catch {};
rest.addQueryParam("start_index", "0") catch {};
rest.addQueryParam("sort_by", "update_time") catch {};
rest.addQueryParam("sort_order", "asc") catch {};
// Send the GET request and get the JSON response.
const sb_json_response = try chilkat.StringBuilder.init();
defer sb_json_response.deinit();
rest.fullRequestNoBodySb("GET", "/v1/payments/payment", sb_json_response) catch {
std.debug.print("{s}\n", .{try rest.getLastErrorText(alloc)});
return;
};
const json = try chilkat.JsonObject.init();
defer json.deinit();
json.setEmitCompact(false);
json.loadSb(sb_json_response) catch {};
// (optional) Save the entire JSON response to a file to examine if desired..
const sb_temp = try chilkat.StringBuilder.init();
defer sb_temp.deinit();
json.emitSb(sb_temp) catch {};
sb_temp.writeFile("qa_output/paypal_payments.json", "utf-8", false) catch {};
std.debug.print("Response Status Code = {d}\n", .{rest.getResponseStatusCode()});
// Did we get a 200 success response?
if (rest.getResponseStatusCode() != 200) {
std.debug.print("{s}\n", .{try json.emit(alloc)});
std.debug.print("Failed.\n", .{});
return;
}
// We are looking for "authorization" transactions .
// As shown below, we are looking in the "transactions" for "related_resources"
// containing "authorization" JSON objects.
// {
// "payments": [
// {
// "id": "PAY-3SL8976592063093RLA3DMAY",
// "create_time": "2016-11-24T00:36:19Z",
// "update_time": "2016-11-24T00:36:24Z",
// "state": "approved",
// "intent": "authorize",
// "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": [
// {
// "authorization": {
// "id": "6HG91590AX913463C",
// "create_time": "2016-11-24T00:36:19Z",
// "update_time": "2016-11-24T00:36:24Z",
// "amount": {
// ...
// }
// },
// "state": "authorized",
// "parent_payment": "PAY-3SL8976592063093RLA3DMAY",
// "valid_until": "2016-12-23T00:36:19Z",
// ...
//
// Iterate over the payments and show each authorization
const json_auth = try chilkat.JsonObject.init();
defer json_auth.deinit();
const num_payments = json.sizeOfArray("payments");
var i: i32 = 0;
while (i < num_payments) {
json.setI(i);
var j: i32 = 0;
const num_transactions = json.sizeOfArray("payments[i].transactions");
while (j < num_transactions) {
json.setJ(j);
const num_related_resources = json.sizeOfArray("payments[i].transactions[j].related_resources");
var k: i32 = 0;
while (k < num_related_resources) {
json.setK(k);
if (json.hasMember("payments[i].transactions[j].related_resources[k].authorization")) {
json.objectOf2("payments[i].transactions[j].related_resources[k].authorization", json_auth) catch {};
std.debug.print("authorization id: {s}\n", .{try json_auth.stringOf(alloc, "id")});
std.debug.print("state: {s}\n", .{try json_auth.stringOf(alloc, "state")});
std.debug.print("total: {s}\n", .{try json_auth.stringOf(alloc, "amount.total")});
std.debug.print("----\n", .{});
}
k = k + 1;
}
j = j + 1;
}
i = i + 1;
}
std.debug.print("success\n", .{});
}