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From api-error-handling
Implements standardized API error responses with status codes, logging, user messages, and circuit breaker for Node.js and Python Flask. Use for production APIs, error recovery, and monitoring integration.
npx claudepluginhub secondsky/claude-skills --plugin api-error-handlingHow this skill is triggered — by the user, by Claude, or both
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/api-error-handling:api-error-handlingThe summary Claude sees in its skill listing — used to decide when to auto-load this skill
Implement robust error handling with standardized responses and proper logging.
Implements standardized API error handling with RFC 7807 responses, typed error classes, middleware, and monitoring. Use for consistent HTTP errors across endpoints.
Implements error handling patterns: custom error hierarchies, structured logging, retry strategies, circuit breakers, and graceful degradation. Includes Express global error handler and anti-patterns checklist.
Provides typed error classes, result patterns, retry logic, and circuit breakers for TypeScript, Python, and Go. Useful for designing error hierarchies, adding retry logic, or reviewing API error handling.
Share bugs, ideas, or general feedback.
Implement robust error handling with standardized responses and proper logging.
{
"error": {
"code": "VALIDATION_ERROR",
"message": "Invalid request parameters",
"status": 400,
"requestId": "req_abc123",
"timestamp": "2025-01-15T10:30:00Z",
"details": [
{ "field": "email", "message": "Invalid email format" }
]
}
}
class ApiError extends Error {
constructor(code, message, status = 500, details = null) {
super(message);
this.code = code;
this.status = status;
this.details = details;
}
static badRequest(message, details) {
return new ApiError('BAD_REQUEST', message, 400, details);
}
static notFound(resource) {
return new ApiError('NOT_FOUND', `${resource} not found`, 404);
}
static unauthorized() {
return new ApiError('UNAUTHORIZED', 'Authentication required', 401);
}
}
// Global error handler
app.use((err, req, res, next) => {
const status = err.status || 500;
const response = {
error: {
code: err.code || 'INTERNAL_ERROR',
message: status === 500 ? 'Internal server error' : err.message,
status,
requestId: req.id
}
};
if (err.details) response.error.details = err.details;
if (status >= 500) logger.error(err);
res.status(status).json(response);
});
class CircuitBreaker {
constructor(threshold = 5, timeout = 30000) {
this.failures = 0;
this.threshold = threshold;
this.timeout = timeout;
this.state = 'CLOSED';
}
async call(fn) {
if (this.state === 'OPEN') throw new Error('Circuit open');
try {
const result = await fn();
this.failures = 0;
return result;
} catch (err) {
this.failures++;
if (this.failures >= this.threshold) {
this.state = 'OPEN';
setTimeout(() => this.state = 'HALF_OPEN', this.timeout);
}
throw err;
}
}
}
See references/python-flask.md for: