Beginner
Build a complete REST API with CRUD operations, authentication, and database integration using the Gin framework.
Gin
GORM
PostgreSQL
JWT
What You'll Build:
- User registration and authentication
- CRUD operations for resources
- Middleware for logging and auth
- Database migrations
- Input validation
- Error handling
// Sample endpoint
func GetUsers(c *gin.Context) {
var users []User
db.Find(&users)
c.JSON(200, users)
}
Beginner
Create a powerful command-line tool for managing tasks with Cobra, featuring persistent storage and beautiful output.
Cobra
Viper
BoltDB
Color
Features:
- Add, list, and complete tasks
- Priority levels and due dates
- Search and filter capabilities
- Export to JSON/CSV
- Configuration management
// Command structure
var addCmd = &cobra.Command{
Use: "add",
Short: "Add a new task",
Run: func(cmd *cobra.Command, args []string) {
// Implementation
},
}
Intermediate
Build a real-time chat application with WebSocket support, rooms, and message history.
Gorilla WebSocket
Redis
MongoDB
Key Components:
- WebSocket connection handling
- Multiple chat rooms
- Message broadcasting
- User presence tracking
- Message history
- Typing indicators
Advanced
Design and implement a microservices-based e-commerce platform with gRPC communication.
gRPC
Protocol Buffers
Docker
Kubernetes
Services:
- User authentication service
- Product catalog service
- Order management service
- Payment processing
- Service discovery
- Load balancing
Intermediate
Build a concurrent web scraper that extracts data from websites efficiently using goroutines.
Colly
Goroutines
Channels
SQLite
Capabilities:
- Concurrent page crawling
- Rate limiting
- Data extraction patterns
- Export to multiple formats
- Scheduled scraping
Intermediate
Create a GraphQL server with subscriptions, data loaders, and authentication.
gqlgen
GraphQL
DataLoader
Implementation:
- Schema design
- Query and mutation resolvers
- Real-time subscriptions
- N+1 query optimization
- Authentication middleware
Advanced
Implement a simple blockchain with proof-of-work, transactions, and wallet functionality.
Crypto
SHA256
P2P
Components:
- Block creation and mining
- Proof-of-work algorithm
- Transaction management
- Wallet generation
- Peer-to-peer network
Intermediate
Build a concurrent file processing system using channels and worker pools.
Worker Pools
Channels
Context
Features:
- Concurrent file processing
- Multiple file format support
- Progress tracking
- Error recovery
- Resource pooling
Advanced
Create a real-time system monitoring dashboard with metrics collection and alerting.
Prometheus
WebSocket
Time Series DB
Monitoring:
- CPU and memory usage
- Network statistics
- Custom metrics
- Alert management
- Historical data analysis