"Static" Redirects

### SETUP ###
import typing
import sanic, sanic.response
# Create the Sanic app
app = sanic.Sanic(__name__)
# This dictionary represents your "static"
# redirects. For example, these values
# could be pulled from a configuration file.
REDIRECTS = {
    '/':'/hello_world',                     # Redirect '/' to '/hello_world'
    '/hello_world':'/hello_world.html'      # Redirect '/hello_world' to 'hello_world.html'
}
# This function will return another function
# that will return the configured value
# regardless of the arguments passed to it.
def get_static_function(value:typing.Any) -> typing.Callable[..., typing.Any]:
    return lambda *_, **__: value
### ROUTING ###
# Iterate through the redirects
for src, dest in REDIRECTS.items():                            
    # Create the redirect response object         
    response:sanic.HTTPResponse = sanic.response.redirect(dest)
    # Create the handler function. Typically,
    # only a sanic.Request object is passed
    # to the function. This object will be 
    # ignored.
    handler = get_static_function(response)
    # Route the src path to the handler
    app.route(src)(handler)
# Route some file and client resources
app.static('/files/', 'files')
app.static('/', 'client')
### RUN ###
if __name__ == '__main__':
    app.run(
        '127.0.0.1',
        10000
    )

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Hello World</title>
</head>
<link rel="stylesheet" href="/hello_world.css">
<body>
    <div id='hello_world'>
        Hello world!
    </div>
</body>
</html>

#hello_world {
    width: 1000px;
    margin-left: auto;
    margin-right: auto;
    margin-top: 100px;
    padding: 100px;
    color: aqua;
    text-align: center;
    font-size: 100px;
    font-family: monospace;
    background-color: rgba(0, 0, 0, 0.75);
    border-radius: 10px;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.75);
}
body {
    background-image: url("/files/lake.jpg");
    background-repeat: no-repeat;
    background-size: cover;
}

# "Static" Redirects