@aponica/id-token-codec-js NPM

@aponica/id-token-codec-js

Encode/decode IDs and a token to/from a string.

Functions to encode a set of ID(s) and a token into a string and decode them back into the original values. The string is typically used as part of a tracking key.

An equivalent PHP package, aponica/id-token-codec-php, is available and kept synchronized with this one, so an encoded string created by one package can be decoded by the other.

Installation

npm i @aponica/id-token-codec-js

Usage

Example 1: Encode/decode a single ID w/ token

const hCodec = require( '@aponica/id-token-codec-js' );

const zKey = hCodec.fzEncode( 12345, 'Hello' ); 
// '3Hello3D7'

const hResult = hCodec.fhDecode( zKey ); 
// { nId: 12345, zToken: 'Hello' }

Example 2: Encode/decode multiple IDs w/ token

const hCodec = require( '@aponica/id-token-codec-js' );

const zKey = hCodec.fzEncodeIds( [ 12, 34, 56 ], 'FOO' ); 
// '1110FOOCYu'

const hResult = hCodec.fhDecodeIdsAndToken( zKey );
// { anIds: [ 12, 34, 56 ], zToken: 'FOO' ]

Example 3: Ignore random token

const hCodec = require( '@aponica/id-token-codec-js' );

const zKey = hCodec.fzEncodeIds( [ 12, 34 ] ); 
// something like '1109fe129386b5a9c1d5bCY'

const anResult = hCodec.fanDecodeIds( zKey );
// [ 12, 34 ]

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Contributing

Please contact us if you believe this package is missing important functionality that you'd like to provide.

Under the covers, the code is heavily commented and uses a form of Hungarian notation for data type guidance. If you submit a pull request, please try to maintain the (admittedly unusual) coding style, which is the product of many decades of programming experience.

@aponica/id-token-codec-js v3.0.0