backend-skills - Build Scalable Backend APIs and Server Applications
Develop RESTful APIs with Express.js, database integration, authentication, and error handling
Tags
Updated: 2026-03-24Capabilities
Typical Inputs
Typical Outputs
What this skill does
- create API routes
- handle HTTP requests
- connect to database
- generate JWT tokens
- validate input data
- execute SQL queries
- handle errors
- write unit tests
- configure middleware
- implement retry logic
Inputs
- framework selection
- database connection
- JWT secret
- HTTP request
- request body
- validation schema
- API endpoint path
- HTTP method
Outputs
- JSON response
- API endpoint
- server application
- JWT token
- validated data
- query result
- error response
- unit test
Requirements
- Node.js runtime
- database access
- backend server environment