Zig

S3 Add Tags to an Object

See more Amazon S3 (new) Examples

Demonstrates how to add one or more tags to an S3 object. Zig

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

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

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

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

    // Connect to the Amazon AWS REST server in the desired region.
    // (for us-east-1, we use "s3.amazonaws.com", but for another region, such as us-west-2, we would use "s3-us-west-2.amazonaws.com")
    const b_tls = true;
    const port = 443;
    const b_auto_reconnect = true;
    try rest.connect("s3.amazonaws.com", port, b_tls, b_auto_reconnect);

    // Provide AWS credentials.
    const auth_aws = try chilkat.AuthAws.init();
    defer auth_aws.deinit();
    auth_aws.setAccessKey("AWS_ACCESS_KEY");
    auth_aws.setSecretKey("AWS_SECRET_KEY");
    auth_aws.setServiceName("s3");
    auth_aws.setRegion("us-east-1");

    rest.setAuthAws(auth_aws) catch {};

    // Set the bucket name via the HOST header.
    // In this case, the bucket name is "chilkat100".
    // Note that the Host header should use "bucketName.s3.amazonaws.com", not "bucketName.s3-us-east-1.amazonaws.com"
    // The same applies to aother regions.  The Host header should simply be <bucketName>.s3.amazonaws.com regardless of the region.
    rest.setHost("chilkat100.s3.amazonaws.com");

    const xml = try chilkat.Xml.init();
    defer xml.deinit();
    xml.setTag("Tagging");
    xml.updateChildContent("TagSet|Tag|Key", "plant");
    xml.updateChildContent("TagSet|Tag|Value", "chili pepper");

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

    // It is important to add the terminating "=" after the "?tagging".
    const sb_response = try chilkat.StringBuilder.init();
    defer sb_response.deinit();
    rest.fullRequestSb("PUT", "/chiliPepper.gif?tagging=", sb_request_body, sb_response) catch {
        std.debug.print("{s}\n", .{try rest.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("Response status code: {d}\n", .{rest.getResponseStatusCode()});

    // When successful, the S3 Storage service will respond with a 200 response code,
    // with an XML body.
    if (rest.getResponseStatusCode() != 200) {
        // Examine the request/response to see what happened.
        std.debug.print("response status code = {d}\n", .{rest.getResponseStatusCode()});
        std.debug.print("response status text = {s}\n", .{try rest.getResponseStatusText(alloc)});
        std.debug.print("response header: {s}\n", .{try rest.getResponseHeader(alloc)});
        std.debug.print("response body: {s}\n", .{try sb_response.getAsString(alloc)});
        std.debug.print("---\n", .{});
        std.debug.print("LastRequestStartLine: {s}\n", .{try rest.getLastRequestStartLine(alloc)});
        std.debug.print("LastRequestHeader: {s}\n", .{try rest.getLastRequestHeader(alloc)});
    }

    std.debug.print("{s}\n", .{try sb_response.getAsString(alloc)});
    std.debug.print("Success.\n", .{});
}