Is there a method to set up a Global error handler that captures the stack trace of errors and sends it to an external system like NewRelic without needing to modify each individual API? This would follow the DRY principle by avoiding changes to multiple files.
If you want to streamline your /api handlers, consider creating a reusable high-order function called withErrorHandler. This function can help handle errors effectively in your code.
import logger from 'some-logger';
const withErrorHandler = (handler) => async (req, res) => {
try {
return handler(req, res);
} catch (error) {
// Handle errors using the logger and customize your error response here
}
};
Assuming your original handler function looks like this:
const handler = (req,res) => {
// Perform certain actions inside the handler
}
You can then export it with the error handling functionality like this:
export default withErrorHandler(handler)
class CustomError extends Error {
constructor(errorMessage, errorCode) {
// super is used to call the parent class constructor
super(errorMessage);
this.errorCode = errorCode;
// captureStackTrace provides a string showing the error location in the call stack, aiding in pinpointing the exact error location.
// "this" refers to the object itself, "this.constructor" indicates the constructor of this class
Error.captureStackTrace(this, this.constructor);
}
}
export default CustomError;
when handling routes in api
if (!user) {
return next(new CustomError("User not found with this ID.", 400));
}
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