How can Tornado serve a single static file at an arbitrary location?

Question

I am developing a simple web app with Tornado. It serves some dynamic files and some static ones. The dynamic ones are not a problem, but I am having trouble serving a static fi

Answer 1

Something like this should work:

import os
import tornado.ioloop
import tornado.web


class MyFileHandler(tornado.web.StaticFileHandler):
    def initialize(self, path):
        self.dirname, self.filename = os.path.split(path)
        super(MyFileHandler, self).initialize(self.dirname)

    def get(self, path=None, include_body=True):
        # Ignore 'path'.
        super(MyFileHandler, self).get(self.filename, include_body)

app = tornado.web.Application([
    (r'/foo\.json', MyFileHandler, {'path': '/path/to/foo.json'})
])

app.listen(8888)
tornado.ioloop.IOLoop.current().start()

The URL pattern and the filename need not be related, you could do this and it would work just as well:

app = tornado.web.Application([
    (r'/jesse\.txt', MyFileHandler, {'path': '/path/to/foo.json'})
])