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errorMiddleware.js
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61 lines (53 loc) · 1.75 KB
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const ErrorHandler = (err, req, res, next) => {
let error = { ...err };
error.message = err.message;
// Mongoose validation error - DYNAMIC MESSAGES
if (err.name === 'ValidationError') {
const validationErrors = Object.values(err.errors).map(val => val.message);
const message = validationErrors.join(', '); // This will show ALL missing fields
return res.status(400).json({
success: false,
message: message,
errorType: 'VALIDATION_ERROR',
details: validationErrors // Optional: show individual errors
});
}
// Mongoose bad ObjectId
if (err.name === 'CastError') {
const message = `Resource not found with id of ${err.value}`;
return res.status(404).json({
success: false,
message: message
});
}
// Mongoose duplicate key
if (err.code === 11000) {
const message = `Duplicate ${Object.keys(err.keyValue)} Entered`;
return res.status(400).json({
success: false,
message: message
});
}
// Wrong JWT Error
if (err.name === 'JsonWebTokenError') {
const message = `Json Web Token is invalid, try again`;
return res.status(400).json({
success: false,
message: message
});
}
// JWT Expire Error
if (err.name === 'TokenExpireError') {
const message = `Json Web Token is expired, try again`;
return res.status(400).json({
success: false,
message: message
});
}
// Default error
res.status(err.statusCode || 500).json({
success: false,
message: error.message || 'Server Error'
});
};
module.exports = ErrorHandler;