Using the Todoist API

If you are trying to use the Todoist (www.todoist.com [1]) API

And you find that your URL works from a web browser (Internet Explorer, Safari, Firefox)
But it doesn't work via wget or curl
And you're getting "500 Internal Server Error" in your response
And some URIs work via wget (e.g. http://todoist.com/API/getProjects?token=fb5f22601ec566e48083213f7573e908a7a272e5 )
But other URIs fail via wget (e.g. http://todoist.com/API/getProject?project_id=22073&token=fb5f22601ec566e48083213f7573e908a7a272e5 )

before you blame the Todoist API -- remember that the ampersand must be escaped on the wget/curl command-line.

wget http://todoist.com/API/getProject?project_id=22073&token=fb5f22601ec566e48083213f7573e908a7a272e5 [2]

(I figured this out by using the Fiddler2 debugging proxy. Great tool.)