Full-Stack Lego Block

Content Management System

Headless CMS with flexible content modeling, rich media library, version control, publishing workflow, and multi-language support for modern content-driven applications.

Custom Content Types

Version Control

Multi-Language

Media Library

Role-Based Access

RESTful

API First

WYSIWYG

Rich Editor

Asset

Management

Headless

Decoupled

Scope & Features

A comprehensive headless CMS solution that provides content authors with powerful tools while giving developers complete API flexibility.

Must Have

Custom content type builder with field definitions
Rich text editor with markdown and WYSIWYG modes
Media library with image optimization and CDN
Publishing workflow (draft, review, published, archived)
Version control and rollback for content entries
Multi-language support with translation management
Role-based permissions (admin, editor, author, viewer)
RESTful and GraphQL API endpoints
SEO metadata management for all content
Content relationships and references

Nice to Have

Scheduled publishing with timezone support
Content preview with shareable links
Bulk operations for content management
Content migration tools and import/export
Webhook notifications for content changes
Custom field validators and constraints

Three-Tier Architecture

Modern full-stack architecture built with Next.js, providing both admin UI and headless API access for maximum flexibility.

Frontend Layer

Technologies

Next.js 15 (App Router)React 19TipTap Rich EditorReact Hook FormTanStack Query

Features

Content type builder UI
WYSIWYG editor with markdown
Media library with drag-drop
Preview and publishing controls
Multi-language content editor

API Layer

Technologies

Next.js API RoutestRPC or RESTGraphQL (optional)Zod ValidationNextAuth.js

Features

Content CRUD operations
Media upload and processing
Version control endpoints
Publishing workflow logic
Role-based access control

Database Layer

Technologies

PostgreSQLPrisma ORMVercel Blob StorageFull-text searchJSON columns

Features

Content types and entries
Version history tracking
Media metadata storage
User roles and permissions
Translation management

Content Modeling

Flexible Content Types

Define custom content types with rich field types, validations, and relationships for complete content modeling flexibility.

Field Types

Short Text

Long Text

Rich Text

Number

Boolean

Date/Time

URL

Media (Image/Video)

File Upload

JSON Object

Array/List

Reference (Relation)

Location (Geo)

Color Picker

Enum/Select

Example: Blog Post Type

{
  "name": "Blog Post",
  "apiId": "blog_post",
  "fields": [
    {
      "name": "Title",
      "type": "text",
      "required": true,
      "maxLength": 200
    },
    {
      "name": "Slug",
      "type": "slug",
      "required": true,
      "unique": true
    },
    {
      "name": "Content",
      "type": "richText",
      "required": true
    },
    {
      "name": "Featured Image",
      "type": "media",
      "required": false
    },
    {
      "name": "Author",
      "type": "reference",
      "contentType": "author"
    },
    {
      "name": "Tags",
      "type": "array",
      "itemType": "reference",
      "contentType": "tag"
    },
    {
      "name": "Published At",
      "type": "datetime"
    }
  ]
}

Validations

•Required fields and optional fields
•Min/max length for text fields
•Pattern matching with regex
•Unique constraints (slug, email)
•Custom validators via functions

Data Schema

Database Schema (PostgreSQL)

Normalized schema with proper indexing, foreign keys, and JSON columns for flexible content storage.

content_types

Content type definitions

Columns

id (UUID, PK)

name (VARCHAR(100))

api_id (VARCHAR(100), unique)

description (TEXT)

fields (JSONB)

is_active (BOOLEAN)

created_at (TIMESTAMP)

updated_at (TIMESTAMP)

content_entries

Content entry data

Columns

id (UUID, PK)

content_type_id (UUID, FK)

data (JSONB)

status (ENUM: draft, review, published, archived)

locale (VARCHAR(10))

published_at (TIMESTAMP)

created_by (UUID, FK → users)

created_at (TIMESTAMP)

updated_at (TIMESTAMP)

Indexes

content_type_idstatuslocalepublished_atdata (GIN)

content_versions

Version history tracking

Columns

id (UUID, PK)

content_entry_id (UUID, FK)

version_number (INT)

data (JSONB)

changed_by (UUID, FK → users)

change_summary (TEXT)

created_at (TIMESTAMP)

Indexes

content_entry_idversion_number

media_assets

Media library items

Columns

id (UUID, PK)

filename (VARCHAR(255))

original_filename (VARCHAR(255))

mime_type (VARCHAR(100))

size_bytes (BIGINT)

width (INT)

height (INT)

storage_url (TEXT)

alt_text (TEXT)

tags (TEXT[])

uploaded_by (UUID, FK → users)

created_at (TIMESTAMP)

Indexes

mime_typetags (GIN)uploaded_by

translations

Multi-language translations

Columns

id (UUID, PK)

content_entry_id (UUID, FK)

locale (VARCHAR(10))

field_key (VARCHAR(100))

translated_value (TEXT)

status (ENUM: pending, translated, approved)

translated_by (UUID, FK → users)

created_at (TIMESTAMP)

Indexes

content_entry_idlocalefield_key

users

User accounts and roles

Columns

id (UUID, PK)

email (VARCHAR(255), unique)

name (VARCHAR(100))

role (ENUM: admin, editor, author, viewer)

avatar_url (TEXT)

is_active (BOOLEAN)

last_login_at (TIMESTAMP)

created_at (TIMESTAMP)

Indexes

emailrole

Media Management

Rich Media Library

Upload, organize, and optimize images, videos, and files with automatic processing and CDN delivery.

Upload & Processing

•Drag-and-drop multi-file upload
•Automatic image optimization
•Multiple size variants generation
•WebP and AVIF conversion
•Video thumbnail extraction
•File type validation

Organization

•Folder-based organization
•Tag-based categorization
•Alt text and captions
•Search and filtering
•Grid and list view modes
•Bulk operations (tag, delete, move)

Delivery & CDN

•Vercel Blob Storage integration
•Global CDN distribution
•On-demand image transformation
•Responsive image URLs
•Automatic cache invalidation
•Usage analytics and quotas

Publishing

Publishing Workflow

Structured content lifecycle from draft to published with approval workflows and scheduled publishing.

Draft

Initial creation and editing state

Available Actions

Edit

Request Review

Delete

Review

Submitted for approval by editor/admin

Available Actions

Approve

Request Changes

Reject

Published

Live and publicly accessible

Available Actions

Unpublish

Archived

Removed from public view but retained

Available Actions

Restore to Draft

Delete Permanently

Workflow Rules & Permissions

Role Permissions

AdminFull access: create, edit, review, publish, delete all content

EditorCreate, edit, review, and publish own or assigned content

AuthorCreate and edit own content, submit for review

ViewerRead-only access to all content and drafts

Advanced Features

•Scheduled publishing with timezone support
•Auto-save drafts every 30 seconds
•Content preview with shareable links
•Approval notifications via email/in-app
•Activity log for all content changes
•Bulk status changes (publish multiple)

Version Control

Version History & Rollback

Track all changes with complete version history and one-click rollback to any previous state.

Automatic Versioning

•New version created on every publish
•Capture full content snapshot
•Track user who made changes
•Optional change summary notes
•Timestamp all modifications
•Store up to 100 versions per entry

Rollback & Compare

•One-click rollback to any version
•Side-by-side diff view
•Highlight changed fields
•Preview before restoring
•Restore creates new version (non-destructive)
•Version branching for major changes

Version History Example

v8Current

2025-12-17 14:30

Updated hero image and adjusted heading

by Alice Chen

v7Published

2025-12-15 09:15

Fixed typos in introduction paragraph

by Bob Smith

v6Published

2025-12-12 16:45

Added new section on pricing

by Alice Chen

v5Published

2025-12-10 11:20

Updated meta description for SEO

by Carol Davis

v4Archived

2025-12-08 13:00

Removed outdated content

by Bob Smith

RESTful API

API Endpoints

Headless API for programmatic content management with authentication, filtering, and pagination.

GET

/api/content-types

List all content type definitions

POST

/api/content-types

Create new content type

GET

/api/content/:type

List entries for content type (with filters, pagination, locale)

POST

/api/content/:type

Create new content entry

PUT

/api/content/:type/:id

Update content entry

DELETE

/api/content/:type/:id

Delete content entry

POST

/api/content/:type/:id/publish

Change status (draft → review → published)

GET

/api/content/:type/:id/versions

Get version history for entry

POST

/api/content/:type/:id/rollback

Rollback to specific version

POST

/api/media/upload

Upload media file(s) to blob storage

GET

/api/media

List media assets (with filters, tags)

DELETE

/api/media/:id

Delete media asset

API Features

Authentication & Security

•NextAuth.js with JWT tokens
•API key authentication option
•Role-based access control (RBAC)
•Rate limiting per user/API key
•CORS configuration for cross-origin

Query Features

•Filtering by field values (eq, ne, in, contains)
•Sorting by any field (asc/desc)
•Pagination (cursor or offset-based)
•Field selection (include/exclude)
•Locale filtering for multi-language

Admin Interface

Admin UI Pages

Intuitive admin interface built with Next.js and React for managing all aspects of your content.

Content Dashboard

•Overview of all content types
•Recent activity feed
•Quick actions and search
•Status statistics
•Scheduled posts calendar

Content Editor

•TipTap WYSIWYG rich text editor
•Markdown mode toggle
•Field-by-field editing
•Real-time auto-save
•Preview pane
•SEO metadata panel

Media Library

•Grid/list view with thumbnails
•Drag-and-drop upload
•Folder organization
•Tag-based filtering
•Bulk operations
•Asset details editor

Content Types Builder

•Visual field builder
•Drag-and-drop field ordering
•Field validation rules
•Relationship configuration
•Import/export schemas

User Management

•User list with roles
•Invite team members
•Permission assignments
•Activity logs per user
•Access revocation

Analytics

•Content performance metrics
•User engagement stats
•Publishing trends
•Media usage reports
•Export to CSV

Production Benefits & Done Criteria

A complete, production-ready headless CMS solution for modern content-driven applications.

Key Benefits

Flexible content modeling with custom types and fields
Rich editing experience with WYSIWYG and markdown
Version control with full rollback capabilities
Publishing workflow with multi-stage approval
Multi-language support for global content
Role-based permissions for team collaboration
Media library with optimization and CDN delivery
RESTful API for headless architecture
Scheduled publishing with timezone support
SEO metadata management for all content

Definition of Done

All content types CRUD operations working
TipTap editor integrated with auto-save
Media upload with image optimization
Version history tracking and rollback functional
Publishing workflow (draft/review/published) implemented
Multi-language translation UI complete
Role-based permissions enforced on all endpoints
Admin UI pages for all major functions
API documentation generated
Test coverage >80% on core CMS logic

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