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Middleware for use Storm ORM in WSGI applications

Project description

Introduction

Storm is a fast, small and powerful object-relational mapper. Try it to use in web-aware applications.

WSGI application mainly miltithreaded, but Store object is not thread safe.

MiddleStorm middleware adds a thread safe Store object instance in environ dictonary. Each thread have self Store.

Simple example

There are 2 ways to create middleware:
  • class
  • decorator

Class middleware:

from wsgiref.simple_server import make_server
from storm.database import create_database

from middlestorm import MiddleStorm

def storm_app(environ, start_response):
    store = environ['storm.store']
    # ...

db = create_database('postgres://user:password@host/base')
app = MiddleStorm(storm_app, db)

make_server('', 8000, app).serve_forever()

Decorator middleware:

from wsgiref.simple_server import make_server
from storm.database import create_database

from middlestorm import middlestorm

@middlestorm(create_database('postgres://user:password@host/base'))
def storm_app(environ, start_response):
    store = environ['storm.store']
    # ...

make_server('', 8000, storm_app).serve_forever()

By default Store placed in in variable storm.store. This can be customized:

app = MiddleStorm(storm_app, db, key='custom.mystore')

or decorator style:

@middlestorm(db, key='custom.mystore')
def storm_app(environ, start_response):
    store = environ['custom.mystore']

Project details


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