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Django Apps

Reusable, extensible Django applications for common functionality.

Overview

HTK provides 29 pre-built apps organized by feature:

  • User Management - Accounts, profiles, email management
  • Social & Authentication - OAuth, social auth backends
  • Organization & Teams - Multi-org support, permissions, invitations
  • Payments & Commerce - Stripe, subscriptions, quotes, invoices
  • Communication - Messaging, conversations, notifications
  • Content & Knowledge - Bible, forums, feedback
  • Data Management - Files, storage, key-value storage
  • Utilities - Async tasks, features, changelog, documentation

User Management

Accounts (accounts)

User registration, authentication, and profile management.

Key Features: - User registration and email verification - Email management (multiple emails per user) - Token-based authentication - User profiles with timezone and locale - Social auth integration (OAuth, OAuth2) - Password reset and recovery - User search and lookup

Usage: 

from htk.apps.accounts.utils.general import create_user, get_user_by_email

user = create_user('user@example.com', password='secure')
user = get_user_by_email('user@example.com')

Models: - BaseAbstractUserProfile - Extend for custom user profiles - UserEmail - Multiple emails per user - Django's built-in User model

Addresses (addresses)

Postal address management and geocoding.

Key Features: - Store and manage postal addresses - Google Maps integration for address geocoding - Latitude/longitude storage

Social & Authentication

OAuth & Social Auth

HTK supports social authentication through python-social-auth: - Facebook, Twitter, Google, LinkedIn - Withings (health data) - Custom OAuth2 backends

Organization & Teams

Organizations (organizations)

Multi-organization support with role-based access control.

Key Features: - Create organizations with members - Role-based permissions (owner, member, etc.) - Organization invitations - Member management - Organization-specific settings

Usage: 

from htk.apps.organizations.models import BaseOrganization

org = BaseOrganization.objects.create(name='Acme Corp')
org.invite_member('user@example.com', role='member')

Invitations (invitations)

Handle user invitations for onboarding and access control.

Key Features: - Invitation creation and tracking - Email-based invitations - Invitation expiration - Integration with user onboarding

Payments & Commerce

Stripe Integration (stripe_lib)

Full Stripe integration for payments and subscriptions.

Key Features: - Stripe customer creation and management - Credit card handling - One-time charges and payments - Recurring subscriptions - Invoice generation

Usage: 

from htk.apps.stripe_lib.models import BaseStripeCustomer

customer = BaseStripeCustomer.objects.create(user=user, stripe_id='cus_xxx')
customer.charge(amount, stripe_token)
subscription = customer.create_subscription(plan_id)

CPQ (Configure, Price, Quote) (cpq)

Quoting and invoicing system.

Key Features: - Create quotes for customers - Line items and pricing - Group quotes - Invoice generation - Payment tracking

Customers (customers)

Customer management for commerce apps.

Store (store)

E-commerce and store functionality.

Communication & Notifications

Notifications (notifications)

Send notifications via multiple channels.

Key Features: - Email notifications - Slack integration - Notification history and tracking

Conversations (conversations)

User-to-user messaging and conversations.

Key Features: - Create conversations between users - Message threads with participants - Emoji reactions to messages - Conversation history

Usage: 

from htk.apps.conversations.models import BaseConversation

convo = BaseConversation.objects.create()
convo.add_participants(user1, user2)
convo.add_message(user1, 'Hello!')

Forums (forums)

Discussion forums and message threads.

Key Features: - Create forums - Forum threads and messages - Tags for categorization - Thread tracking

Content & Knowledge

Bible (bible)

Scripture data and reference tools.

Key Features: - Bible books, chapters, verses - Scripture passage lookup - Bible reference formatting

Feedback (feedback)

Collect user feedback and reviews.

Data & File Management

File Storage (file_storage)

Store uploaded files.

Key Features: - Handle file uploads - Store files securely - File organization

Blob Storage (blob_storage)

Binary large object (BLOB) storage.

KV Storage (kv_storage)

Key-value storage for flexible data.

Usage: 

from htk.apps.kv_storage.utils import kv_put, kv_get

kv_put('user:settings', {'theme': 'dark'})
settings = kv_get('user:settings')

Features & Configuration

Features (features)

Feature flags for gradual rollouts.

Key Features: - Enable/disable features per user or org - A/B testing support - Feature flag caching

Usage: 

from htk.apps.features.utils import get_feature_flag

if get_feature_flag('new_dashboard', user):
    # Show new dashboard

Maintenance Mode (maintenance_mode)

Enable maintenance mode to prevent user access.

Key Features: - Global maintenance mode toggle - Exception list for admin access

Prelaunch (prelaunch)

Pre-launch signup and early access management.

API & Documentation

API (api)

REST API utilities and tools. See api/README.md.

Documentation (documentation)

Automatic README generation for modules.

Key Features: - Analyze Python modules - Generate documentation - Extract classes, functions, models

Changelog (changelog)

Track and generate changelogs from Git history.

Localization & Internationalization

i18n (i18n)

Internationalization and localization tools.

Key Features: - Multi-language string support - Localizable and localized strings - Language detection

Sites (sites)

Multi-site support (Django contrib wrapper).

Miscellaneous

Mobile (mobile)

Mobile app integration and push notifications.

MP (Materialized Properties) (mp)

Performance optimization through materialized properties.

Tokens (tokens)

API token management and authentication.

URL Shortener (url_shortener)

Create and manage short URLs.

Usage: 

from htk.apps.url_shortener.models import HTKShortUrl

short = HTKShortUrl.objects.create(url='https://very-long-url.com')
short_code = short.code  # e.g., 'a7f2'

Development Patterns

Extending Apps

Extend abstract models to add custom fields:

from htk.apps.accounts.models import BaseAbstractUserProfile

class CustomUserProfile(BaseAbstractUserProfile):
    organization = ForeignKey(Organization)
    department = CharField(max_length=100)

Using Mixins

Leverage app mixins for common functionality:

from htk.apps.accounts.mixins import UserOwnedMixin

class MyModel(UserOwnedMixin):
    # Automatically tracks owner and timestamps
    pass

Signal Handlers

Apps provide signal handlers for key events:

from htk.apps.accounts.apps import create_user_profile

# Automatically called when User is created

Installation

Enable apps in settings.py:

INSTALLED_APPS = [
    'htk.apps.accounts',
    'htk.apps.organizations',
    'htk.apps.stripe_lib',
    'htk.apps.conversations',
    'htk.apps.notifications',
    # ... more apps
]

Each app includes migrations for easy database setup:

python manage.py migrate