Zig Requires Chilkat v11.0.0+

Walmart v3 OAuth2 Access Token with Client Credentials

See more Walmart v3 Examples

Get access token by providing Client ID and Client Secret. 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 -X POST https://marketplace.walmartapis.com/v3/token \
    // --user clientId:clientSecret \
    // -H 'Content-Type: application/x-www-form-urlencoded' \
    // -H 'Accept: application/json' \
    // -H 'WM_SVC.NAME: Walmart Marketplace' \
    // -H 'WM_QOS.CORRELATION_ID: b3261d2d-028a-4ef7-8602-633c23200af6' \
    // -H 'WM_SVC.VERSION: 1.0.0' \
    // -d 'grant_type=client_credentials'

    const req = try chilkat.HttpRequest.init();
    defer req.deinit();
    req.setHttpVerb("POST");
    req.setPath("/v3/token");
    req.setContentType("application/x-www-form-urlencoded");
    req.addParam("grant_type", "client_credentials");

    req.addHeader("WM_QOS.CORRELATION_ID", "b3261d2d-028a-4ef7-8602-633c23200af6");
    req.addHeader("Accept", "application/json");
    req.addHeader("WM_SVC.NAME", "Walmart Marketplace");
    req.addHeader("WM_SVC.VERSION", "1.0.0");

    // Set the "--user clientId:clientSecret" by setting the Login and Password properties
    http.setLogin("clientId");
    http.setPassword("clientSecret");

    const resp = try chilkat.HttpResponse.init();
    defer resp.deinit();
    http.httpReq("https://marketplace.walmartapis.com/v3/token", req, 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);

    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 >= 400) {
        std.debug.print("Response Header:\n", .{});
        std.debug.print("{s}\n", .{try resp.getHeader(alloc)});
        std.debug.print("Failed.\n", .{});
        return;
    }

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

    // {
    //   "access_token": "eyJraWQiOiIzN2JmOWQ5MS04ZDRkLTQwYjEtODU4NS1mNzhlZDc3MjM4MDQiLCJlbmMiOiJBMjU2R0NNIiwiYWxnIjoiZGlyIn0..bKkYKqJ5CP0Qb2Qz.wQ4TTa2nwL1rbT98BBdbTi_MRNMM0gW_5q8im6uX4olRwYiuOXjaG6TbnnFOK5fT0UzMEJUf-uybalogMH78cHP0ZyL6hONKJOMJ8VK3ThcZ4AUcqrMRBNIMFiAWSTvHJg1y5g-t-WwmZbaD589dMll7-aXG6PPncpeQA1zOyOTaELjDA4O4jimc2_7PnEdc6ETv89AKcnw1J1cPz6BPG9jpyLVX_zEZcQnxbAHYZiSFscFCzdMtpFDrPWIwWuRcV5qRlH4DghHMqKG7V2wqX1VYV_gUvLH5b2y8O6Y0u9nmkBpqTGNiMpWzNE7amFyqKExGk4Jc_ziJdsrj38cSz9a4KtZOrV6E3mN5gFFEQSNAGzrdEv2IdTfWdNgTnHopQecgrlP7EcsrmGh1ARGTWr-e7RaiL8m2Sx5i9odGj5FDJKXiDeohX-KEB-Vc2KJeLxvYAHA7nPT1_pkZDBCfpqq_6GAUBDEbDZ6mJH93TAE1YhFeR_jcdl_23lND9sHKlvHA97-fHAjEVTqu-4wVmFFelGyJD4VIBkieWn94jq_opMiz-RjyYn8Vj-tfdJy8azBNt5NkjjW7Rsque04LsfujrqHDcJHio3ukT5JKwxNv9PoHMxoHnQ5fUdF4pOzt6ZShkki-jSbhileDlClh0ufLSNYgBmy6Fz4wTZWgL-DhJOcv-7Cup95Rx35Wh7XDYTbdz_z_avtfF-f-JS5XyN20Hn-gioWdNA7DNhI1O6s7zKZ2s2iD9eFkprOLGtcJzvNVjrxKZKD6R0hrUUzDXRn95oWlJXfan-OsTNdRypfGWFqIes-n8cBhzVF69LEWIDMr6YfdkRkmCq_p_A.Bvyf-k_rnsiiuf0jGGVXvw",
    //   "token_type": "Bearer",
    //   "expires_in": 900
    // }

    // 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, "access_token");
    _ = try j_resp.stringOf(alloc, "token_type");
    _ = j_resp.intOf("expires_in");
}