Posted on Aug 8 • Originally published at thinkthroo.com

Here's how you can serialize/deserialize an error into a plain object.

In this article, we will review how you can serialize/deserialize an error into a plain object. We will look at:

serializeError usage in Flyde
What is Flyde?
serialize-error package

serializeError usage in Flyde

I found the following import in flyde/core/src/remote-debugger/utils.ts.

import { serializeError } from "serialize-error";

and this function is used as shown below:

export const toString = (v: any) => { const type = typeof v; switch (type) { case "object": if (v instanceof Error) { return JSON.stringify(serializeError(v)); } try { return JSON.stringify(v).substr(0, STRING_LIMIT); } catch (e) { return `Object (cannot stringify)`; } default: return `${v}`.substr(0, STRING_LIMIT); } };

What is Flyde?

Flyde is an open-source visual programming for backend logic that integrates with existing codebases. Flyde bridges the gap between technical and non-technical team members. Product managers, designers, and backend developers can collaborate on the same visual flows.

Learn more about Flyde.dev.

serialize-error package

Serialize/deserialize an error into a plain object

Useful if you for example need to JSON.stringify() or process.send() the error.

Installation

npm install serialize-error

Usage

import {serializeError, deserializeError} from 'serialize-error'; const error = new Error('🦄'); console.log(error); //=> [Error: 🦄] const serialized = serializeError(error); console.log(serialized); //=> {name: 'Error', message: '🦄', stack: 'Error: 🦄\n at Object.<anonymous> …'} const deserialized = deserializeError(serialized); console.log(deserialized); //=> [Error: 🦄]