Extend Grit

Optional Go Modules

Standalone Go packages that add specific functionality to your project. Each one is a drop-in module with Gin handlers, GORM models, and a Claude Code skill file so AI assistants know how to use it. You install them with go get.

Not the same as grit plugin addThese are ordinary Go dependencies you wire up yourself. Grit's plugin system is a different thing: it generates code into your repo and records the install in .grit/plugins.lock.json so it can be reversed. The multi-tenancy plugin is one of those.

One Go packageAI-ready skill

Each plugin drops in Gin handlers, GORM models, and a Claude skill file — AI-ready

How Plugins Work

Grit plugins follow a consistent pattern: install the Go module, run the GORM auto-migration, configure with environment variables, and register routes. Each plugin includes a .claude/skills/ directory with a skill file that teaches AI assistants how to integrate and use the plugin.

Integration Pattern

// 1. Install
// go get github.com/gritframework/grit-<plugin>

// 2. Import and configure
import plugin "github.com/gritframework/grit-<plugin>"

// 3. Run migrations
plugin.AutoMigrate(db)

// 4. Create service
svc := plugin.NewService(db, plugin.Config{...})

// 5. Register routes
plugin.RegisterRoutes(router.Group("/api"), svc)

Source Code: All plugins are open source at github.com/MUKE-coder/grit-plugins

WebSockets

grit-websockets

GitHub

Real-time communication with hub pattern, rooms, broadcast, and auth middleware.

Features

•WebSocket hub with connection management
•Room-based messaging and broadcast
•Auth middleware via query param token
•Client read/write pump goroutines

Use Cases

Live chat and messagingReal-time notificationsCollaborative editingLive dashboards and feedsMultiplayer game state sync

Install

go get github.com/gritframework/grit-websockets

Quick Start

import ws "github.com/gritframework/grit-websockets"

hub := ws.NewHub()
go hub.Run()

r.GET("/ws", ws.AuthWebSocketHandler(hub, validateToken))

Stripe Payments

grit-stripe

GitHub

Stripe integration for checkout sessions, subscriptions, customer portal, and webhook handling.

Features

•Checkout sessions (one-time and recurring)
•Subscription management (create, cancel, list)
•Customer portal sessions
•Webhook signature verification and routing
•GORM models for payment tracking

Use Cases

SaaS subscription billingE-commerce checkoutMarketplace paymentsUsage-based billingFreemium to paid conversion

Environment Variables

STRIPE_SECRET_KEYSTRIPE_WEBHOOK_SECRETSTRIPE_SUCCESS_URLSTRIPE_CANCEL_URL

Install

go get github.com/gritframework/grit-stripe

Quick Start

import gritstripe "github.com/gritframework/grit-stripe"

client := gritstripe.NewClient(gritstripe.Config{
    SecretKey:     os.Getenv("STRIPE_SECRET_KEY"),
    WebhookSecret: os.Getenv("STRIPE_WEBHOOK_SECRET"),
    SuccessURL:    os.Getenv("STRIPE_SUCCESS_URL"),
    CancelURL:     os.Getenv("STRIPE_CANCEL_URL"),
})

r.POST("/webhooks/stripe", gritstripe.WebhookHandler(handlers))

OAuth / Social Login

grit-oauth

GitHub

OAuth2 social login with pre-configured providers for Google, GitHub, and Discord.

Features

•Google, GitHub, Discord providers built-in
•State parameter CSRF protection
•OAuth account linking to existing users
•Extensible for custom providers
•GORM models for OAuth accounts

Use Cases

Social login (Sign in with Google)SSO for enterprise appsGitHub login for developer toolsDiscord login for community appsMulti-provider auth

Environment Variables

GOOGLE_CLIENT_IDGOOGLE_CLIENT_SECRETGITHUB_CLIENT_IDGITHUB_CLIENT_SECRET

Install

go get github.com/gritframework/grit-oauth

Quick Start

import oauth "github.com/gritframework/grit-oauth"

mgr := oauth.NewManager(oauth.Config{
    RedirectBaseURL: os.Getenv("OAUTH_REDIRECT_BASE"),
})
mgr.RegisterProvider("google", oauth.GoogleProvider(clientID, clientSecret))

r.GET("/auth/:provider", mgr.RedirectHandler())
r.GET("/auth/:provider/callback", mgr.CallbackHandler(onSuccess))

Notifications

grit-notifications

GitHub

Multi-channel notification system: in-app, push (FCM), SMS (Twilio), and email digest.

Features

•In-app notifications with read/unread tracking
•Push notifications via Firebase Cloud Messaging
•SMS via Twilio
•Multi-channel send (same notification to multiple channels)
•REST API for frontend notification bell

Use Cases

In-app notification centerOrder status push notificationsSMS verification codesActivity feed alertsMulti-channel user messaging

Environment Variables

FCM_SERVER_KEYTWILIO_ACCOUNT_SIDTWILIO_AUTH_TOKENTWILIO_FROM_NUMBER

Install

go get github.com/gritframework/grit-notifications

Quick Start

import notify "github.com/gritframework/grit-notifications"

svc := notify.NewService(db, notify.Config{
    FCMServerKey: os.Getenv("FCM_SERVER_KEY"),
})
notify.RegisterRoutes(api, svc)

svc.Send(ctx, notify.Notification{
    UserID: userID, Channel: notify.InApp,
    Title: "New Comment", Body: "Someone commented on your post.",
})

Full-Text Search

grit-search

GitHub

Meilisearch integration with indexing, search queries, GORM auto-sync hooks, and Gin handlers.

Features

•Meilisearch client wrapper
•Document indexing and bulk sync
•Search with filters, sorting, pagination
•GORM hooks for auto-indexing on create/update/delete
•Gin search endpoint handler

Use Cases

Product search with filtersBlog/article searchUser directory searchFaceted navigationAutocomplete and suggestions

Environment Variables

MEILISEARCH_HOSTMEILISEARCH_API_KEY

Install

go get github.com/gritframework/grit-search

Quick Start

import search "github.com/gritframework/grit-search"

client, _ := search.NewClient(search.Config{
    Host:   os.Getenv("MEILISEARCH_HOST"),
    APIKey: os.Getenv("MEILISEARCH_API_KEY"),
})
search.RegisterAutoIndex(db, client, &models.Post{}, "posts")
r.GET("/api/search", search.SearchHandler(client, "posts"))

Video Processing

grit-video

GitHub

Video upload, FFmpeg transcoding, thumbnail generation, and HLS adaptive streaming.

Features

•Video upload with validation
•FFmpeg transcoding to HLS (360p-1080p)
•Adaptive bitrate master playlist
•Thumbnail generation
•Video info extraction (duration, resolution)
•GORM models with processing status

Use Cases

Video course platformsUser-generated contentMedia streaming servicesVideo portfoliosInternal training videos

Environment Variables

FFMPEG_PATHVIDEO_STORAGE_PATHVIDEO_MAX_UPLOAD_SIZE

Install

go get github.com/gritframework/grit-video

Quick Start

import video "github.com/gritframework/grit-video"

svc := video.NewService(db, video.Config{
    StoragePath:   "./storage/videos",
    MaxUploadSize: 500 * 1024 * 1024,
    FFmpegPath:    "ffmpeg",
})
video.RegisterRoutes(api, svc)

Video Conferencing

grit-conference

GitHub

WebRTC signaling server with room management, participant tracking, and screen sharing support.

Features

•WebRTC signaling via WebSocket
•Room creation with participant limits
•Screen sharing signals
•Mute/unmute and video on/off controls
•ICE/STUN/TURN server configuration
•Room locking

Use Cases

Video meetings and callsTelehealth consultationsLive tutoring sessionsPair programmingVirtual office rooms

Install

go get github.com/gritframework/grit-conference

Quick Start

import conference "github.com/gritframework/grit-conference"

svc := conference.NewService(conference.Config{
    MaxParticipants: 10,
    ICEServers: []conference.ICEServer{
        {URLs: []string{"stun:stun.l.google.com:19302"}},
    },
})
conference.RegisterRoutes(api, svc)

Outgoing Webhooks

grit-webhooks

GitHub

Webhook subscription management, event dispatching, HMAC-SHA256 signing, and retry with exponential backoff.

Features

•Webhook subscriptions with event filtering
•HMAC-SHA256 signature headers
•Exponential backoff retry (up to 5 attempts)
•Background delivery workers
•Delivery log with status tracking
•Test and manual retry endpoints

Use Cases

API platform integrationsEvent-driven architecturesThird-party notification deliveryCI/CD pipeline triggersPayment status callbacks

Environment Variables

WEBHOOK_SIGNING_SECRET

Install

go get github.com/gritframework/grit-webhooks

Quick Start

import webhooks "github.com/gritframework/grit-webhooks"

svc := webhooks.NewService(db, webhooks.Config{
    SigningSecret: os.Getenv("WEBHOOK_SIGNING_SECRET"),
    MaxRetries:    5, WorkerCount: 4,
})
svc.Start()
webhooks.RegisterRoutes(api, svc)

// Dispatch from anywhere:
svc.Dispatch("user.created", map[string]interface{}{"id": user.ID})

Internationalization

grit-i18n

GitHub

Translation loading, locale detection middleware, pluralization, and API endpoints for frontend translation fetching.

Features

•File-based translations (JSON/TOML)
•Locale detection from headers, query params
•String interpolation and pluralization
•API endpoints for frontend translation fetching
•DB-backed translation overrides
•Gin middleware for locale context

Use Cases

Multi-language websitesGlobal SaaS applicationsAdmin-editable translationsLocalized email templatesRegional content delivery

Install

go get github.com/gritframework/grit-i18n

Quick Start

import i18n "github.com/gritframework/grit-i18n"

svc, _ := i18n.NewService(i18n.Config{
    DefaultLocale:    "en",
    SupportedLocales: []string{"en", "fr", "es"},
    TranslationsDir:  "./translations",
})
r.Use(i18n.LocaleMiddleware(svc))
i18n.RegisterRoutes(api, svc)

Data Export

grit-export

GitHub

PDF reports, Excel spreadsheets, and CSV exports with builder-pattern APIs and GORM integration.

Features

•PDF generation with tables, headers, footers
•Excel export with styling and multiple sheets
•CSV generation
•Builder pattern for all formats
•GORM query to export bridge
•Gin handler with format negotiation (?format=pdf|excel|csv)

Use Cases

Admin data exportsInvoice PDF generationReport downloadsData migration exportsScheduled report delivery

Install

go get github.com/gritframework/grit-export

Quick Start

import export "github.com/gritframework/grit-export"

svc := export.NewService(export.Config{CompanyName: "Acme Inc"})
queryFn := export.GORMExportHandler(db, &[]User{}, columns)
r.GET("/api/users/export", export.ExportHandler(svc, queryFn))