Skip to main content

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 manage Store objects (one per thread) and add it into environ dictonary.

Simple example

There are 3 ways to create middleware:
  • class
  • decorator
  • Paste configuration

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

import middlestorm

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

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

To create middleware via Paste configuration, add a stanza to the .ini file:

[filter:middlestorm]
use = middlestorm#middlestorm
db_uri = sqlite:myapp.db

and then add that filter to the Paste pipeline (again, in the .ini file):

[pipeline:main]
pipeline =
    middlestorm
    myapp

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

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

or decorator style:

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

or in the Paste configuration:

[filter:middlestorm]
use = middlestorm#middlestorm
db_uri = sqlite:myapp.db
key = myapp.store

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

middlestorm-0.8.1.tar.gz (4.7 kB view hashes)

Uploaded source

Supported by

AWS AWS Cloud computing Datadog Datadog Monitoring Facebook / Instagram Facebook / Instagram PSF Sponsor Fastly Fastly CDN Google Google Object Storage and Download Analytics Huawei Huawei PSF Sponsor Microsoft Microsoft PSF Sponsor NVIDIA NVIDIA PSF Sponsor Pingdom Pingdom Monitoring Salesforce Salesforce PSF Sponsor Sentry Sentry Error logging StatusPage StatusPage Status page