Zig

REST Download Binary File to Memory

See more REST Examples

Download a binary file to a Chilkat BinData object. Zig

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

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

    // This 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();

    // We're going to download a sample MS-Word doc file.
    // The URLs of our MS-Word sample documents are:

    // https://www.chilkatdownload.com/sample_data/sample.doc
    // https://www.chilkatdownload.com/sample_data/sample.docx

    const path_part_of_url = "/sample_data/sample.doc";
    const domain = "chilkatdownload.com";

    const b_tls = true;
    const port = 443;
    const b_auto_reconnect = true;
    rest.connect(domain, port, b_tls, b_auto_reconnect) catch {
        std.debug.print("{s}\n", .{try rest.getLastErrorText(alloc)});
        return;
    };

    const bd = try chilkat.BinData.init();
    defer bd.deinit();
    rest.fullRequestNoBodyBd("GET", path_part_of_url, bd) catch {
        std.debug.print("{s}\n", .{try rest.getLastErrorText(alloc)});
        return;
    };

    // A 200 response is expected for actual success.
    // If we don't get a 200 response, then the response body was not actually
    // the file data, but it was text containing error information.
    if (rest.getResponseStatusCode() != 200) {
        const sb_error_text = try chilkat.StringBuilder.init();
        defer sb_error_text.deinit();
        sb_error_text.appendBd(bd, "utf-8", 0, 0) catch {};
        std.debug.print("{s}\n", .{try sb_error_text.getAsString(alloc)});
        std.debug.print("-- Failed.\n", .{});
        return;
    }

    // Save to a local file.
    // Change the file path based on your operating system or needs...
    bd.writeFile("c:/temp/qa_output/sample.doc") catch {
        std.debug.print("Failed to save to local file.\n", .{});
        return;
    };

    std.debug.print("REST Download of MS-Word File was successful.\n", .{});
}