Zig

Send XML REST Request, Get Response with No Body (Google Cloud Storage)

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Demonstrates sending a RESTful XML request, and receiving a response where the expected response is a header with no body (Content-Length = 0). This example will create a bucket in Google Cloud Storage using the Google Cloud Storage XML API.

See Create a Bucket using the XML API for additional request options.

Zig

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

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

    // This example will create a bucket in Google Cloud Storage using the XML API.

    // It requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    const g_auth = try chilkat.AuthGoogle.init();
    defer g_auth.deinit();
    // Obtain an access token as shown in one of the following examples:
    // See Get Access Token using a Service Account JSON Key
    // See Get Access Token using a P12 File

    const rest = try chilkat.Rest.init();
    defer rest.deinit();

    // Connect using TLS.
    const b_auto_reconnect = true;
    try rest.connect("www.googleapis.com", 443, true, b_auto_reconnect);

    // Provide the authentication credentials (i.e. the access key)
    try rest.setAuthGoogle(g_auth);

    // Build the XML request body for creating a bucket.
    // See https://cloud.google.com/storage/docs/xml-api/put-bucket-create
    const xml_req_body = try chilkat.Xml.init();
    defer xml_req_body.deinit();
    xml_req_body.setTag("CreateBucketConfiguration");
    xml_req_body.newChild2("LocationConstraint", "us");
    xml_req_body.newChild2("StorageClass", "STANDARD");

    // Show the HTTP request body we'll be sending.
    std.debug.print("{s}\n", .{try xml_req_body.getXml(alloc)});

    // There are no query parameters...

    // The HOST header must be specified, because it needs to be different than
    // the domain previously passed to the Connect method.
    // The name of the bucket is the 1st part of the HOST header.
    try rest.addHeader("Host", "chilkat-example-bucket.storage.googleapis.com");

    // The project ID is specified in an HTTP request header
    try rest.addHeader("x-goog-project-id", "chilkattest-1050");

    // In this case, the response body is expected to be empty.  We can still
    // call FullRequestString.  We expect an empty string to be returned.
    _ = rest.fullRequestString(alloc, "PUT", "/", try xml_req_body.getXml(alloc)) catch {
        std.debug.print("{s}\n", .{try rest.getLastErrorText(alloc)});
        return;
    };

    // Check the response status code to make sure it is 200.
    const response_status = rest.getResponseStatusCode();
    std.debug.print("Response Status Code = {d}\n", .{response_status});
}