Dictionary-in, Dictionary-out style with WSGI

README.md

Blog 2019/3/8

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Dictionary-in, Dictionary-out style with WSGI

A trivial WSGI app which tries to make WSGI a bit more like Clojure's Ring framework (dictionary-in, dictionary-out).

ring.wsgi

def root_endpoint(request):
    d = {}
    d["status"] = '200 OK'
    d["body"] = 'Root!\n'
    d["headers"] = [
        ('Content-type', 'text/plain'),
        ('Content-Length', str(len(d["body"])))
    ]
    return d

def hello_endpoint(request):
    d = {}
    d["status"] = '200 OK'
    d["body"] = 'Hello, world!\n'
    d["headers"] = [
        ('Content-type', 'text/plain'),
        ('Content-Length', str(len(d["body"])))
    ]
    return d

routes = {
    "/": root_endpoint,
    "/hello": hello_endpoint
}

def route(request):
    return routes[request["PATH_INFO"]]

def application(request, start_response_fn):
    handler = route(request)
    response = handler(request)
    start_response_fn(response["status"], response["headers"])
    return [response["body"].encode()]

run.sh

sudo pip install mod_wsgi
mod_wsgi-express start-server ring.wsgi

Note: for python2, the last line of the above example was originally:

    return [response["body"]]