/**
* Global Error Handler Middleware
*/
import { Request, Response, NextFunction } from 'express';
import { ErrorResponse } from '../types/index.js';
import {
UnauthorizedError,
ValidationError,
RateLimitError,
JobNimbusApiError,
ToolExecutionError,
} from '../utils/errors.js';
import logger from '../utils/logger.js';
/**
* Error handler middleware
*/
export const errorHandler = (
err: Error,
req: Request,
res: Response,
_next: NextFunction
): void => {
// Determine status code
let statusCode = 500;
let message = 'Internal server error';
if (err instanceof UnauthorizedError) {
statusCode = err.statusCode;
message = err.message;
} else if (err instanceof ValidationError) {
statusCode = err.statusCode;
message = err.message;
} else if (err instanceof RateLimitError) {
statusCode = err.statusCode;
message = err.message;
} else if (err instanceof JobNimbusApiError) {
statusCode = err.statusCode;
message = err.message;
} else if (err instanceof ToolExecutionError) {
statusCode = err.statusCode;
message = err.message;
}
// Log error (sanitized)
logger.error('Request error', {
statusCode,
message: err.message,
path: req.path,
method: req.method,
});
// Build error response
const errorResponse: ErrorResponse = {
error: err.name || 'Error',
message,
statusCode,
timestamp: new Date().toISOString(),
};
// Include stack trace only in development
if (process.env.NODE_ENV === 'development') {
(errorResponse as any).stack = err.stack;
}
res.status(statusCode).json(errorResponse);
};
