Zig

S3 Download Specific Version of File

See more Amazon S3 Examples

Demonstrates how to download a file from the Amazon S3 service using the versionId query parameter.

Note: This example requires Chilkat v9.5.0.89 or later. (A problem regarding AwsSubResources w/ downloads was fixed shortly after the v9.5.0.88 release.)

Zig

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

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

    var success: bool = false;

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

    const http = try chilkat.Http.init();
    defer http.deinit();

    http.setAwsAccessKey("AWS_ACCESS_KEY");
    http.setAwsSecretKey("AWS_SECRET_KEY");
    http.setAwsRegion("us-east-1");
    http.setAwsEndpoint("s3.amazonaws.com");
    http.setAwsSubResources("versionId=x8UPzRsgskmbe55lEQvhLi25PQl2lcFH");

    const bucket_name = "chilkat100";
    const object_name = "frenchUtf8.txt";
    const local_file_path = "qa_output/frenchUtf8.txt";

    success = if (http.s3DownloadFile(bucket_name, object_name, local_file_path)) true else |_| false;
    if (!success) {
        std.debug.print("{s}\n", .{try http.getLastErrorText(alloc)});
    } else {
        std.debug.print("File downloaded.\n", .{});
    }
}