Zig

Amazon Glacier Set Vault Access Policy

See more Amazon Glacier Examples

Demonstrates how to set an access policy for a vault (will overwrite the existing policy). 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.
    const b_tls = true;
    const port = 443;
    const b_auto_reconnect = true;
    try rest.connect("glacier.us-west-2.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("glacier");
    auth_aws.setRegion("us-west-2");

    try rest.setAuthAws(auth_aws);

    // --------------------------------------------------------------------------
    // Note: The above REST connection and setup of the AWS credentials
    // can be done once.  After connecting, any number of REST calls can be made.
    // The "auto reconnect" property passed to rest.Connect indicates that if
    // the connection is lost, a REST method call will automatically reconnect
    // if needed.
    // --------------------------------------------------------------------------

    // For more information, see Glacier Set Vault Access Policy Reference Documentation
    //
    rest.addHeader("x-amz-glacier-version", "2012-06-01") catch {};

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

    // {
    //   "Version": "2012-10-17",
    //   "Statement": [
    //     {
    //       "Sid": "Define-owner-access-rights",
    //       "Effect": "Allow",
    //       "Principal": {
    //         "AWS": "arn:aws:iam::AWS_ACCOUNT_ID:root"
    //       },
    //       "Action": "glacier:DeleteArchive",
    //       "Resource": "arn:aws:glacier:us-west-2:AWS_ACCOUNT_ID:vaults/chilkat"
    //     }
    //   ]
    // }

    const json_policy = try chilkat.JsonObject.init();
    defer json_policy.deinit();
    json_policy.updateString("Version", "2012-10-17") catch {};
    json_policy.updateString("Statement[0].Sid", "Define-owner-access-rights") catch {};
    json_policy.updateString("Statement[0].Effect", "Allow") catch {};
    json_policy.updateString("Statement[0].Principal.AWS", "arn:aws:iam::AWS_ACCOUNT_ID:root") catch {};
    json_policy.updateString("Statement[0].Action", "glacier:DeleteArchive") catch {};
    // Notice here the name of the vault: "chilkat".  Change it to your vault name.  Also use your actual AWS account ID.
    json_policy.updateString("Statement[0].Resource", "arn:aws:glacier:us-west-2:AWS_ACCOUNT_ID:vaults/chilkat") catch {};

    // Wrap the above JSON in this JSON:

    // {
    //    "Policy": "{  ... the above JSON ... }"
    // }
    const json = try chilkat.JsonObject.init();
    defer json.deinit();
    json.updateString("Policy", try json_policy.emit(alloc)) catch {};

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

    const sb_response_body = try chilkat.StringBuilder.init();
    defer sb_response_body.deinit();
    rest.fullRequestSb("PUT", "/AWS_ACCOUNT_ID/vaults/chilkat/access-policy", sb_request_body, sb_response_body) catch {
        std.debug.print("{s}\n", .{try rest.getLastErrorText(alloc)});
        return;
    };

    const resp_status_code = rest.getResponseStatusCode();
    if (resp_status_code >= 400) {
        std.debug.print("Response Status Code = {d}\n", .{resp_status_code});
        std.debug.print("Response Header:\n", .{});
        std.debug.print("{s}\n", .{try rest.getResponseHeader(alloc)});
        std.debug.print("Response Body:\n", .{});
        std.debug.print("{s}\n", .{try sb_response_body.getAsString(alloc)});
        return;
    }

    // Success is indicated by a 204 response status with an empty response body.
    std.debug.print("response status code = {d}\n", .{resp_status_code});
}