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Class MiddlewareComposer

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Compose middleware based on list of rules.

Instance Methods [hide private]
 
__init__(self, app, rules)
Instantiate with an app and a list of rules.
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__call__(self, environ, start_response)
Apply each middleware whose predicate is true.
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Inherited from object: __delattr__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __str__

Properties [hide private]

Inherited from object: __class__

Method Details [hide private]

__init__(self, app, rules)
(Constructor)

source code 

Instantiate with an app and a list of rules.

Overrides: object.__init__

__call__(self, environ, start_response)
(Call operator)

source code 

Apply each middleware whose predicate is true.

Each predicate is passes the environ to evaluate.

Given this set of rules:

t = lambda x: True; f = lambda x: False [(t, a), (f, b), (t, c), (f, d), (t, e)]

The app composed would be equivalent to this:

a(c(e(app)))