pyrin 0.6.3

Description:

pyrin 0.6.3

Pyrin
A rich, fast, performant and easy to use application framework
to build apps using Flask on top of it.
Pyrin is an application framework built on top of Flask micro-framework to make
life easier for developers who want to develop an enterprise application
using Flask, without having to make their own core layer and getting better code
design and structure that is more maintainable.
Pyrin could be used as the parent package of an application, so other application
packages will use its functionality and features to maintain their goals without
worrying about basic implementations.
It is also possible for application packages to extend existing Pyrin packages.
Pyrin point of view is to build an application which is more decoupled, so making it
possible to have customized implementations of different packages and also making it
easier to write unit-test packages.
Another major fact of Pyrin is to avoid centralized locations for application features, so a team
of multiple developers be able to work on the same repository without facing conflicts here
and there. Also reducing the chances of annoying bugs due to forgetting to register
something in somewhere.
Installing
Install using pip:
pip install pyrin
Running Tests
To be able to run tests:

Pyrin tests are developed using pytest, you should first
install pyrin tests dependencies using pip:

pip install pyrin[tests]

Now you could execute python3 start_unit.py to start all unit tests.

Demo Application
A demo application developed using Pyrin framework is available at:
Pyrin-Demo
Contribute In Pyrin Development
We highly appreciate any kind of contributions to Pyrin development.
Fork Pyrin and implement a new feature and make a pull request, we'll let
you know when your work becomes a part of Pyrin.
So, open the project in your IDE and create your pipenv environment.
Then you could start developing Pyrin.
Extremely Simple Usage Example
The sample code below, is just a rapid showcase on how to develop using Pyrin.
for a real world application, it is best fit to use the concept of dependency injection
and IoC which Pyrin is built upon.
To be able to create an application based on Pyrin, the only thing that is required to do
is to subclass from pyrin Application class in your application package. this is
needed for Pyrin to be able to find out your application path for generating different
paths and also loading your application packages. there is no difference where to put
your subclassed Application, in this example we put it inside the project's main
package, inside __init__.py.
Sample Project Structure:

root_dir

demo

__init__.py
api.py
models.py


start.py



__init__.py:
from pyrin.application.base import Application


class DemoApplication(Application):
pass

models.py:
from pyrin.database.model.declarative import CoreEntity
from pyrin.database.orm.sql.schema.columns import GUIDPKColumn, StringColumn, SmallIntegerColumn


class GuestEntity(CoreEntity):

_table = 'guest'

id = GUIDPKColumn(name='id')
name = StringColumn(name='name', max_length=100, validated=True)
age = SmallIntegerColumn(name='age', min_value=1, validated=True)

api.py:
from pyrin.api.router.decorators import api
from pyrin.core.structs import DTO
from pyrin.database.services import get_current_store

from demo.models import GuestEntity


@api('/introduce/<name>', authenticated=False)
def introduce(name, **options):
"""
introduce yourself to us.
---
parameters:
- name: name
type: string
description: your name
responses:
200:
schema:
type: string
description: a welcome note
"""
store = get_current_store()
guest = GuestEntity(name=name)
store.add(guest)
return 'Hello dear {name}, you have been added into our database.'.format(name=name)


@api('/guests', authenticated=False)
def guests(**options):
"""
gets the list of all guests.
---
responses:
200:
schema:
type: array
items:
type: object
properties:
id:
type: string
format: uuid
description: id of guest
name:
type: string
description: name of guest
age:
type: integer
description: age of guest.
"""
store = get_current_store()
return store.query(GuestEntity).all()


@api('/', authenticated=False)
def hello(**options):
"""
shows the welcome message.
---
responses:
200:
schema:
properties:
message:
type: string
description: welcome message
current_guests:
type: integer
description: count of current guests
"""
store = get_current_store()
count = store.query(GuestEntity.id).count()
result = DTO(message='Welcome to our demo application, please introduce yourself.',
current_guests=count)
return result

start.py:
from demo import DemoApplication


if __name__ == '__main__':
app = DemoApplication()
app.run(use_reloader=False)

Now you could start application by executing this command in your terminal:
python3 start.py
Application will be available at 127.0.0.1:5000 by default.
Pyrin on default configurations, will use an in-memory sqlite database.
Creating a New Pyrin Project
Pyrin has a command line tool that can be used to create a new project.
to use the command line interface of Pyrin, install Pyrin and then open a terminal and write:
pyrin project

after hitting enter, a couple of questions will be asked to create your project, answer
questions accordingly, and your project will be created without a hassle.
Using Project's Extended Command Line Tool
After creating a new project using pyrin project command, a cli.py file will
be generated in the root of your new project directory. there are a couple of command
groups that can be used to perform different actions.
execute each command with --help option to see all available commands of each group.


Builtin Commands:

python cli.py alembic
python cli.py babel
python cli.py template
python cli.py security



Integration Commands:

python cli.py celery



Integrations
Pyrin has builtin integrations for different services. to use each one of integrations inside
your application, you must install dependencies of that integration.
Celery:
pip install pyrin[celery]
To enable celery after installing its dependencies, open settings/packaging.ini file
and remove pyrin.task_queues.celery from the ignored_packages list.
Sentry:
pip install pyrin[sentry]
To enable sentry after installing its dependencies, open settings/packaging.ini file
and remove pyrin.logging.sentry from the ignored_packages list.
Redis:
pip install pyrin[redis]
To enable redis after installing its dependencies, open settings/packaging.ini file
and remove pyrin.caching.remote.handlers.redis from the ignored_modules list.
Memcached:
pip install pyrin[memcached]
To enable memcached after installing its dependencies, open settings/packaging.ini file
and remove pyrin.caching.remote.handlers.memcached from the ignored_modules list.
Built-in Swagger UI Support
Pyrin has built-in support for Swagger UI thanks to
Flasgger.
all of your api services are available on swagger without anything needed to be done.
but you can enhance Swagger UI of your application by setting a good yaml
docstring for your api method views.
You can head over to 127.0.0.1:5000/swagger to test the Swagger UI.
Inspiration
This project is inspired by the awesome Deltapy framework by:

@abisxir
@mvavesal

Unfortunately I couldn't find any links to it online.
Hint
Pyrin is a greek word and means core.