How to add MIME type with Express
For express 4.x, good documentation on mime-type can be found in https://github.com/broofa/node-mime.
For example, Safari browser would show the content of csv instead of downloading the csv with <a href="some.csv">download here</a>.
You can get around this by adding the following
express.static.mime.define({'application/octet-stream': ['csv']})
Assuming it's a video in a public directory, you can use the static middleware for this:
app.use(express.static(__dirname + '/public'));If you need to alter the mime table (like to add or change an extension, do):
express.mime.type['ogv'] = 'video/ogg';But I think all the ones you listed are already there.
Then requests to /foo.wav will serve up /public/foo.wav with the proper content-type header, provided no other middleware handles the route first.