@batterii/encode-object

This module contains utility functions for encoding and decoding JSON-serializable objects from base64url, allowing them to be safely sent as HTTP headers and URI components.

There are many modules like this already, but at Batterii we wrote yet another one and ended up wanting to open-source some things that depend on it. So we open-sourced this as well. Feel free to use but there's really nothing special about it.

Note that while encoded objects are not typically human-readable, that does not mean they are encrypted or signed in any way. Reading the data from them is as simple as reversing the encoding process, and tampering with them is as simple as repeating it with different data.

To produce signed tokens, which prevent tampering, use tokengrip instead.

Usage

import { decodeObject, encodeObject } from '@batterii/encode-object';

const str = encodeObject({ foo: 'bar' } );

console.log(str);
// eyJmb28iOiJiYXIifQ

const obj = decodeObject(str);

console.log(obj);
// { foo: 'bar' }

In addition to plain objects and arrays, top-level JSON primitives are also supported:

console.log(decodeObject(encodeObject('some string')));
// some string

console.log(decodeObject(encodeObject(true)));
// true

console.log(decodeObject(encodeObject(false)));
// false

console.log(decodeObject(encodeObject(null)));
// null

Error Handling

This package uses Nani to define the following error classes:

• EncodeObjectError: This is the base class for all other errors in the package, for namespacing purposes.

• InvalidJsonError: Will be thrown if encoded text contaning invalid JSON is sent to decodeObject.