Zig

Amazon Glacier List Vaults

See more Amazon Glacier Examples

Demonstrates how to list the glacier vaults in a given region. 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 List Vaults Reference Documentation
    //
    rest.addHeader("x-amz-glacier-version", "2012-06-01") catch {};

    // Get the glacier vaults in my account's us-west-2 region.
    const sb_response_body = try chilkat.StringBuilder.init();
    defer sb_response_body.deinit();
    rest.fullRequestNoBodySb("GET", "/AWS_ACCOUNT_ID/vaults", 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 200 response status with an empty response body.
    std.debug.print("response status code = {d}\n", .{resp_status_code});

    const json = try chilkat.JsonObject.init();
    defer json.deinit();
    json.loadSb(sb_response_body) catch {};
    json.setEmitCompact(false);

    std.debug.print("{s}\n", .{try json.emit(alloc)});

    // Use this online tool to generate parsing code from sample JSON:
    // Generate Parsing Code from JSON

    var i: i32 = 0;
    var creation_date: [:0]const u8 = "";
    var last_inventory_date: [:0]const u8 = "";
    var number_of_archives: i32 = 0;
    var size_in_bytes: i32 = 0;
    var vault_arn: [:0]const u8 = "";
    var vault_name: [:0]const u8 = "";

    _ = try json.stringOf(alloc, "Marker");
    i = 0;
    const count_i = json.sizeOfArray("VaultList");
    while (i < count_i) {
        json.setI(i);
        creation_date = try json.stringOf(alloc, "VaultList[i].CreationDate");
        last_inventory_date = try json.stringOf(alloc, "VaultList[i].LastInventoryDate");
        number_of_archives = json.intOf("VaultList[i].NumberOfArchives");
        size_in_bytes = json.intOf("VaultList[i].SizeInBytes");
        vault_arn = try json.stringOf(alloc, "VaultList[i].VaultARN");
        vault_name = try json.stringOf(alloc, "VaultList[i].VaultName");
        i = i + 1;
    }

    // Sample response
    //
    // {
    //   "Marker": null,
    //   "VaultList": [
    //     {
    //       "CreationDate": "2019-04-05T19:10:28.428Z",
    //       "LastInventoryDate": null,
    //       "NumberOfArchives": 0,
    //       "SizeInBytes": 0,
    //       "VaultARN": "arn:aws:glacier:us-west-2:954491834127:vaults/chilkat",
    //       "VaultName": "chilkat"
    //     },
    //     {
    //       "CreationDate": "2019-04-05T19:00:21.768Z",
    //       "LastInventoryDate": null,
    //       "NumberOfArchives": 0,
    //       "SizeInBytes": 0,
    //       "VaultARN": "arn:aws:glacier:us-west-2:954491834127:vaults/ocean",
    //       "VaultName": "ocean"
    //     }
    //   ]
    // }
    //
}