Zig Requires Chilkat v11.0.0+

Amazon Pay - Cancel Charge

See more Amazon Pay Examples

Moves Charge to Canceled state and releases any authorized payments. Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    const http = try chilkat.Http.init();
    defer http.deinit();

    // Implements the following CURL command:

    // curl "https://pay-api.amazon.com/:version/charges/:chargeId/cancel" \
    // -X DELETE
    // -H "authorization:Px2e5oHhQZ88vVhc0DO%2FsShHj8MDDg%3DEXAMPLESIGNATURE"
    // -H "x-amz-pay-date:20201012T235046Z"
    // -d '{
    //     "cancellationReason": "REASON DESCRIPTION"
    // }'

    // Use the following online tool to generate HTTP code from a CURL command
    // Convert a cURL Command to HTTP Source Code

    // Use this online tool to generate code from sample JSON:
    // Generate Code to Create JSON

    // The following JSON is sent in the request body.

    // {
    //   "cancellationReason": "REASON DESCRIPTION"
    // }

    const json = try chilkat.JsonObject.init();
    defer json.deinit();
    json.updateString("cancellationReason", "REASON DESCRIPTION") catch {};

    const sb_request_body = try chilkat.StringBuilder.init();
    defer sb_request_body.deinit();
    json.emitSb(sb_request_body) catch {};

    // Load your Amazon Pay private key.
    // There are many other ways to load private keys into the Chilkat private key object, such as from different formats,
    // or from in-memory strings or bytes.
    const priv_key = try chilkat.PrivateKey.init();
    defer priv_key.deinit();
    priv_key.loadPemFile("C:/someDir/myAmazonPayPrivateKey.pem") catch {
        std.debug.print("{s}\n", .{try priv_key.getLastErrorText(alloc)});
        return;
    };

    // Provide your Amazon Pay private key and Public Key ID
    // Use your public key ID here.  It must be the one associated with the private key.
    const public_key_id = "SANDBOX-AHEGSJCM3L2S637RBGABLAFW";
    http.setAuthPrivateKey(public_key_id, priv_key) catch {
        std.debug.print("{s}\n", .{try http.getLastErrorText(alloc)});
        return;
    };

    // Note: When the private key is provided as shown above, Chilkat will automatically add the required x-amz-pay-* headers to the HTTP request,
    // and will also sign the request.  Nothing more is needed.
    // Chilkat automatically generates and adds the following headers:
    //
    // x-amz-pay-date
    // x-amz-pay-host
    // x-amz-pay-region
    // Authorization

    http.setAccept("application/json");

    // Use the actual chargeId here:
    try http.setUrlVar("chargeId", "bd504926-f659-4ad7-a1a9-9a747aaf5275");
    // To use the live system, replace "sandbox" with "live" in the URL passed to HttpSb.
    // Also, make sure to use the correct region: pay-api.amazon.com, pay-api.amazon.eu, or pay-api.amazon.jp
    const resp = try chilkat.HttpResponse.init();
    defer resp.deinit();
    http.httpSb("DELETE", "https://pay-api.amazon.eu/sandbox/v2/charges/{$chargeId}/cancel", sb_request_body, "utf-8", "application/json", resp) catch {
        std.debug.print("{s}\n", .{try http.getLastErrorText(alloc)});
        return;
    };

    const sb_response_body = try chilkat.StringBuilder.init();
    defer sb_response_body.deinit();
    resp.getBodySb(sb_response_body) catch {};
    const j_resp = try chilkat.JsonObject.init();
    defer j_resp.deinit();
    j_resp.loadSb(sb_response_body) catch {};
    j_resp.setEmitCompact(false);

    // If the status code is not equal to 200, this will display error information.
    std.debug.print("Response Body:\n", .{});
    std.debug.print("{s}\n", .{try j_resp.emit(alloc)});

    const resp_status_code = resp.getStatusCode();
    std.debug.print("Response Status Code = {d}\n", .{resp_status_code});
    if (resp_status_code != 200) {
        std.debug.print("Failed.\n", .{});
        return;
    }

    // Sample JSON response:
    // (Sample code for parsing the JSON response is shown below)

    // {
    //   "chargeId": "P21-1111111-1111111-C111111",
    //   "chargePermissionId": "P21-1111111-1111111",
    //   "chargeAmount": {
    //     "amount": "14.00",
    //     "currencyCode": "USD"
    //   },
    //   "captureAmount": {
    //     "amount": "14.00",
    //     "currencyCode": "USD"
    //   },
    //   "refundedAmount": {
    //     "amount": "0.00",
    //     "currencyCode": "USD"
    //   },
    //   "convertedAmount": "14.00",
    //   "conversionRate": "1.00",
    //   "softDescriptor": "SOFT DESCRIPTOR",
    //   "merchantMetadata": null,
    //   "providerMetadata": {
    //     "providerReferenceId": null
    //   },
    //   "statusDetails": {
    //     "state": "Canceled",
    //     "reasonCode": null,
    //     "reasonDescription": null,
    //     "lastUpdatedTimestamp": "20190714T155300Z"
    //   },
    //   "creationTimestamp": "20190714T155300Z",
    //   "expirationTimestamp": "20190715T155300Z",
    //   "releaseEnvironment": "Sandbox"
    // }

    // Sample code for parsing the JSON response...
    // Use the following online tool to generate parsing code from sample JSON:
    // Generate Parsing Code from JSON

    _ = try j_resp.stringOf(alloc, "chargeId");
    _ = try j_resp.stringOf(alloc, "chargePermissionId");
    _ = try j_resp.stringOf(alloc, "chargeAmount.amount");
    _ = try j_resp.stringOf(alloc, "chargeAmount.currencyCode");
    _ = try j_resp.stringOf(alloc, "captureAmount.amount");
    _ = try j_resp.stringOf(alloc, "captureAmount.currencyCode");
    _ = try j_resp.stringOf(alloc, "refundedAmount.amount");
    _ = try j_resp.stringOf(alloc, "refundedAmount.currencyCode");
    _ = try j_resp.stringOf(alloc, "convertedAmount");
    _ = try j_resp.stringOf(alloc, "conversionRate");
    _ = try j_resp.stringOf(alloc, "softDescriptor");
    _ = try j_resp.stringOf(alloc, "merchantMetadata");
    _ = try j_resp.stringOf(alloc, "providerMetadata.providerReferenceId");
    _ = try j_resp.stringOf(alloc, "statusDetails.state");
    _ = try j_resp.stringOf(alloc, "statusDetails.reasonCode");
    _ = try j_resp.stringOf(alloc, "statusDetails.reasonDescription");
    _ = try j_resp.stringOf(alloc, "statusDetails.lastUpdatedTimestamp");
    _ = try j_resp.stringOf(alloc, "creationTimestamp");
    _ = try j_resp.stringOf(alloc, "expirationTimestamp");
    _ = try j_resp.stringOf(alloc, "releaseEnvironment");
}