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Description:

pipservices4config 0.0.3

Config Components for Python
This module is a part of the Pip.Services polyglot microservices toolkit.
The Config module contains configuration component definitions that can be used to build applications and services.
The module contains the following packages:

Auth - authentication credential stores
Config - configuration readers and managers, whose main task is to deliver configuration parameters to the application from wherever they are being stored
Connect - connection discovery and configuration services

Quick links:

API Reference
Change Log
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Use
Install the Python package as
pip install pip_services4_config

Example how to get connection parameters and credentials using resolvers.
The resolvers support "discovery_key" and "store_key" configuration parameters
to retrieve configuration from discovery services and credential stores respectively.
from pip_services3_commons.config import ConfigParams, IConfigurable
from pip_services3_commons.refer import IReferences, IReferenceable
from pip_services3_commons.run import IOpenable
from pip_services3_components.auth import CredentialParams, CredentialResolver
from pip_services3_components.connect import ConnectionParams, ConnectionResolver

class MyComponent(IConfigurable, IReferenceable, IOpenable):
__connection_resolver = ConnectionResolver()
__credential_resolver = CredentialResolver()

def configure(self, config):
self.__connection_resolver.configure(config)
self.__credential_resolver.configure(config)

def set_references(self, references):
self.__connection_resolver.set_references(references)
self.__credential_resolver.set_references(references)

# ...

def open(self, context):
connection = self.__connection_resolver.resolve(context)
credential = self.__credential_resolver.lookup(context)

host = connection.get_post()
port = connection.get_port()
user = credential.get_username()
pas = credential.get_password()

# ...

# Using the component
my_component = MyComponent()

my_component.configure(ConfigParams.from_tuples(
'connection.host', 'localhost',
'connection.port', 1234,
'credential.username', 'anonymous',
'credential.password', 'pass123'
))

my_component.open(None)

Develop
For development you shall install the following prerequisites:

Python 3.7+
Visual Studio Code or another IDE of your choice
Docker

Install dependencies:
pip install -r requirements.txt

Run automated tests:
python test.py

Generate API documentation:
./docgen.ps1

Before committing changes run dockerized build and test as:
./build.ps1
./test.ps1
./clear.ps1

Contacts
The initial implementation is done by Sergey Seroukhov. Pip.Services team is looking for volunteers to
take ownership over Python implementation in the project.