Example for reading an existing zip archive:

import std.stdio : writeln, writefln;
import std.file : read;
import std.zip;

void main(string[] args)
{
    // read a zip file into memory
    auto zip = new ZipArchive(read(args[1]));

    // iterate over all zip members
    writefln("%-10s  %-8s  Name", "Length", "CRC-32");
    foreach (name, am; zip.directory)
    {
        // print some data about each member
        writefln("%10s  %08x  %s", am.expandedSize, am.crc32, name);
        assert(am.expandedData.length == 0);

        // decompress the archive member
        zip.expand(am);
        assert(am.expandedData.length == am.expandedSize);
    }
}

Example for writing files into a zip archive:

import std.file : write;
import std.string : representation;
import std.zip;

void main()
{
    // Create an ArchiveMembers for each file.
    ArchiveMember file1 = new ArchiveMember();
    file1.name = "test1.txt";
    file1.expandedData("Test data.\n".dup.representation);
    file1.compressionMethod = CompressionMethod.none; // don't compress

    ArchiveMember file2 = new ArchiveMember();
    file2.name = "test2.txt";
    file2.expandedData("More test data.\n".dup.representation);
    file2.compressionMethod = CompressionMethod.deflate; // compress

    // Create an archive and add the member.
    ZipArchive zip = new ZipArchive();

    // add ArchiveMembers
    zip.addMember(file1);
    zip.addMember(file2);

    // Build the archive
    void[] compressed_data = zip.build();

    // Write to a file
    write("test.zip", compressed_data);
}