Zig Requires Chilkat v11.0.0+

Amazon Pay - Create Delivery Tracker

See more Amazon Pay Examples

Create a Delivery Tracker once an order has been shipped and a tracking code has been generated. 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 POST:

    // POST /:version/deliveryTrackers HTTP/1.1
    // Host: pay-api.amazon.com
    // Accept: application/json
    // Authorization: AMZN-PAY-RSASSA-PSS PublicKeyId=f4fc06fc-c5a7-11e7-abc4-cec278b6b50a, SignedHeaders=content-type;x-amz-pay-date, Signature=4164128ec5d1b9da1700167ab2ccda8125f472c8bb9de447cebf5d741ee317c8
    // X-Amz-Pay-Date: 20190305T024410Z
    // Content-type: application/json
    //
    // {
    //     "amazonOrderReferenceId" : "P00-0000000-0000000",
    //     "deliveryDetails" : [{
    //     "trackingNumber" : "1Z999AA10123456784",
    //     "carrierCode" : "UPS"
    //   }]
    // }

    // Use the following online tool to generate HTTP code from a CURL command
    // Convert a Raw HTTP Request to 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.

    // {
    //     "amazonOrderReferenceId" : "P00-0000000-0000000",
    //     "deliveryDetails" : [{
    //     "trackingNumber" : "1Z999AA10123456784",
    //     "carrierCode" : "UPS"
    //   }]
    // }

    const json = try chilkat.JsonObject.init();
    defer json.deinit();
    json.updateString("amazonOrderReferenceId", "P00-0000000-0000000") catch {};
    json.updateString("deliveryDetails[0].trackingNumber", "1Z999AA10123456784") catch {};
    json.updateString("deliveryDetails[0].carrierCode", "UPS") 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.
    // Note: The SetAuthPrivateKey method was added in Chilkat v9.5.0.89
    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
    // x-amz-pay-idempotency-key
    // Authorization

    http.setAccept("application/json");

    // To use the live system, replace "sandbox" with "live" in the URL passed to HttpJson.
    // 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.httpJson("POST", "https://pay-api.amazon.eu/sandbox/v2/deliveryTrackers", json, "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)

    // {
    //     "amazonOrderReferenceId": "P00-0000000-0000000",
    //     "deliveryDetails": [{
    //         "trackingNumber": "1Z999AA10123456784",
    //         "carrierCode": "UPS"
    //     }]
    // }

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

    var tracking_number: [:0]const u8 = "";
    var carrier_code: [:0]const u8 = "";

    _ = try j_resp.stringOf(alloc, "amazonOrderReferenceId");
    var i: i32 = 0;
    const count_i = j_resp.sizeOfArray("deliveryDetails");
    while (i < count_i) {
        j_resp.setI(i);
        tracking_number = try j_resp.stringOf(alloc, "deliveryDetails[i].trackingNumber");
        carrier_code = try j_resp.stringOf(alloc, "deliveryDetails[i].carrierCode");
        i = i + 1;
    }
}