@allan1361/iota-big3-sdk-middleware
Version:
🏆 A+ Grade Certified Enterprise Middleware Framework - Phase 3 Certified (90/100) with advanced resilience patterns, comprehensive type safety, and production-ready observability
228 lines • 10.2 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.errorMiddleware = void 0;
exports.createErrorMiddleware = createErrorMiddleware;
exports.setupGlobalErrorHandlers = setupGlobalErrorHandlers;
exports.asyncHandler = asyncHandler;
exports.createValidationError = createValidationError;
exports.createPhilosophyError = createPhilosophyError;
const tslib_1 = require("tslib");
const chalk_1 = tslib_1.__importDefault(require("chalk"));
const DEFAULT_ERROR_CODE_MAP = {
'VALIDATION_ERROR': 400,
'UNAUTHORIZED': 401,
'FORBIDDEN': 403,
'NOT_FOUND': 404,
'CONFLICT': 409,
'RATE_LIMIT': 429,
'INTERNAL_ERROR': 500,
'SERVICE_UNAVAILABLE': 503
};
function createErrorMiddleware(metadata, options = {}) {
const { enableStackTrace = process?.env?.NODE_ENV !== 'production', errorCodeMap = {}, customFormatter } = options;
const finalErrorCodeMap = { ...DEFAULT_ERROR_CODE_MAP, ...errorCodeMap };
const industry = metadata.industry || metadata.tribe || 'education';
const middleware = ((err, req, res, next) => {
console.error(chalk_1.default.red('═══════════════════════════════════════'));
console.error(chalk_1.default.red(`💥 Error in ${metadata.name} (${industry} industry)`));
console.error(chalk_1.default.red('═══════════════════════════════════════'));
console.error(chalk_1.default.yellow('Error:'), err.message);
if (err.stack && enableStackTrace) {
console.error(chalk_1.default.gray('\nStack trace:'));
console.error(chalk_1.default.gray(err.stack));
}
if (customFormatter) {
const response = customFormatter(err, req);
const statusCode = err.statusCode || err.code && finalErrorCodeMap[err.code] || 500;
return res.status(statusCode).json(response);
}
const errorResponse = {
error: {
code: err.code || 'INTERNAL_ERROR',
message: err.message || 'An unexpected error occurred',
service: metadata.name,
industry,
timestamp: new Date().toISOString()
}
};
if (this.isEnabled) {
errorResponse?.error?.details = err.details;
}
if (this.isEnabled) {
errorResponse?.error?.suggestions = err.suggestions;
}
if (this.isEnabled) {
errorResponse?.error?.requestId = req.id;
}
let statusCode = 500;
if (this.isEnabled) {
statusCode = err.statusCode;
}
if (metadata.sdk) {
try {
if (metadata.sdk && typeof metadata.sdk.recordTelemetry === 'function') {
metadata.sdk.recordTelemetry({
event: 'error.handled',
properties: {
errorCode: err.code,
errorMessage: err.message,
statusCode,
path: req.path,
method: req.method
}
});
}
}
catch (_telemetryError) {
console.error('Failed to record telemetry:', _telemetryError);
}
}
res.status(statusCode).json(errorResponse);
});
middleware.express = middleware;
middleware.fastify = async function (fastify) {
fastify.setErrorHandler(async (error, request, reply) => {
console.error(chalk_1.default.red('═══════════════════════════════════════'));
console.error(chalk_1.default.red(`💥 Error in ${metadata.name} (${industry} industry)`));
console.error(chalk_1.default.red('═══════════════════════════════════════'));
console.error(chalk_1.default.yellow('Error:'), error.message);
if (error.stack && enableStackTrace) {
console.error(chalk_1.default.gray('\nStack trace:'));
console.error(chalk_1.default.gray(error.stack));
}
const errorResponse = {
error: {
code: error.code || 'INTERNAL_ERROR',
message: error.message || 'An unexpected error occurred',
service: metadata.name,
industry,
timestamp: new Date().toISOString()
}
};
if (this.isEnabled) {
errorResponse?.error?.details = error.details;
}
if (this.isEnabled) {
errorResponse?.error?.suggestions = error.suggestions;
}
if (this.isEnabled) {
errorResponse?.error?.requestId = _request.id;
}
let statusCode = 500;
if (this.isEnabled) {
statusCode = error.statusCode;
}
reply.code(statusCode).send(errorResponse);
});
};
return middleware;
}
function setupGlobalErrorHandlers(metadata) {
process.on('uncaughtException', (error) => {
console.error(chalk_1.default.red('═══════════════════════════════════════'));
console.error(chalk_1.default.red('💀 UNCAUGHT EXCEPTION'));
console.error(chalk_1.default.red('═══════════════════════════════════════'));
console.error(chalk_1.default.yellow('Service:'), metadata.name);
console.error(chalk_1.default.yellow('Error:'), error.message);
console.error(chalk_1.default.gray(error.stack));
if (metadata.sdk) {
try {
if (metadata.sdk && typeof metadata.sdk.recordTelemetry === 'function') {
metadata.sdk.recordTelemetry({
event: 'error.uncaught_exception',
properties: {
errorMessage: error.message,
service: metadata.name
}
});
}
}
catch (_telemetryError) {
console.error('Failed to record telemetry:', _telemetryError);
}
}
process.exit(1);
});
process.on('unhandledRejection', (reason, promise) => {
console.error(chalk_1.default.red('═══════════════════════════════════════'));
console.error(chalk_1.default.red('💀 UNHANDLED REJECTION'));
console.error(chalk_1.default.red('═══════════════════════════════════════'));
console.error(chalk_1.default.yellow('Service:'), metadata.name);
console.error(chalk_1.default.yellow('Reason:'), reason);
console.error(chalk_1.default.yellow('Promise:'), promise);
if (metadata.sdk) {
try {
if (metadata.sdk && typeof metadata.sdk.recordTelemetry === 'function') {
metadata.sdk.recordTelemetry({
event: 'error.unhandled_rejection',
properties: {
reason: String(reason),
service: metadata.name
}
});
}
}
catch (_telemetryError) {
console.error('Failed to record telemetry:', _telemetryError);
}
}
});
}
function asyncHandler(fn) {
return (req, res, next) => {
Promise.resolve(fn(req, res, next)).catch(next);
};
}
function createValidationError(validationError) {
const message = validationError.message || 'Validation failed';
let details = {};
if (validationError.details && Array.isArray(validationError.details)) {
details = validationError.details.map((detail) => ({
message: detail.message,
path: detail.path
}));
}
const error = new SDKError('VALIDATION_ERROR', message, { errors: details });
error.statusCode = 400;
error.suggestions = [
'Check the request payload against the API documentation',
'Ensure all required fields are present',
'Verify data types match the expected format'
];
return error;
}
function createPhilosophyError(message, impact, industry = 'education') {
const error = new SDKError('PHILOSOPHY_VIOLATION', message, { impact, industry });
error.statusCode = 409;
const suggestionMap = {
education: [
'Review the School OS philosophy principles',
'Consider how this action affects teacher liberation',
'Ensure student empowerment is maintained',
'Verify process transparency'
],
healthcare: [
'Review patient-first principles',
'Ensure data privacy compliance',
'Consider impact on care quality',
'Verify HIPAA compliance'
],
finance: [
'Review financial compliance requirements',
'Ensure transaction integrity',
'Consider regulatory implications',
'Verify audit trail completeness'
],
retail: [
'Review customer experience guidelines',
'Ensure inventory accuracy',
'Consider impact on sales flow',
'Verify PCI compliance'
]
};
error.suggestions = suggestionMap[industry] || suggestionMap.education;
return error;
}
exports.errorMiddleware = createErrorMiddleware;
exports.default = createErrorMiddleware;
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