Adding files to ZIP in C#

AddFile.cs

function saveFileAsZip(string filePath) {
	using (ZipFile zip = new ZipFile())
    {
        //Add string
        zip.AddEntry("dataset.json", "{ foo: 'bar' }");
        //Add file as byte array
        zip.AddEntry("customName.json", System.IO.File.ReadAllBytes(filePath));
        
        //Add file, preserving path
	zip.AddFile(filePath);
	//Add file to zip root
	zip.AddFile(filePath, "");
	//Add file to folder in zip
	zip.AddFile(filePath, "/folder/bar");

        return zip;
    }
}