tryte-encode-decode

About

Data comes in many shapes and sizes. Storing all data types as strings would be very inefficient in trytes. That is where this module comes in. Whether it be strings, numbers, boolean, arrays, dates, etc. This module aims to encode the data to trytes and also bring it back to it's original type and value.

Supported Encodings

• String
• 8-bit Integer [-128 to 127]
• 16-bit Integer [-32,768 to 32,767]
• 32-bit Integer [-2,147,483,648 to 2,147,483,647]
• 64-bit Integer
• 8-bit Unsigned Integer [0 to 255]
• 16-bit Unsigned Integer [0 to 65,535]
• 32-bit Unsigned Integer [0 to 4,294,967,295]
• 64-bit Unsigned Integer
• Boolean
• DateUTC
• Geospatial Coordinates
• Array

Further Reading

Understanding IOTA Trits & Trytes

Install

# npm
npm install --save tryte-encode-decode

# yarn
yarn add tryte-encode-decode

Example

// import package
// ES5
const tryteConverter = require('@iftt/tryte-encode-decode');
// ES6
import tryteConverter from '@iftt/tryte-encode-decode';

let trytes = tryteConverter.stringToTrytes('This is a test.');
let decodedTrytes = tryteConverter.trytesToString(trytes);

// decodedTrytes === 'This is a test.'

Debug

If you need to debug use the string tryte-encode-decode

DEBUG=tryte-encode-decode node x

---

API

• stringToTrytes
• trytesToString
• dateToTrytes
• trytesToDate
• int8ToTrytes
• trytesToInt8
• uInt8ToTrytes
• int16ToTrytes
• trytesToInt16
• uInt16ToTrytes
• int32ToTrytes
• trytesToInt32
• uInt32ToTrytes
• trytesToUInt
• booleanToTryte
• tryteToBoolean
• geoToTrytes
• trytesToGeo
• type DataTypes
• arrayToTrytes
• trytesToArray

stringToTrytes

stringToTrytes(str?: string): string [2 trytes per character]

• encode string to trytes

const tryteConverter = require('@iftt/tryte-encode-decode');

let trytes = tryteConverter.stringToTrytes('This is a test.');

// trytes === 'CCWCXCGDEAXCGDEAPCEAHDTCGDHDSA'

---

trytesToString

trytesToString(str?: string): string

• decode trytes back to a string

const tryteConverter = require('@iftt/tryte-encode-decode');

let trytes = tryteConverter.stringToTrytes('This is a test.');
let decodedTrytes = tryteConverter.trytesToString(trytes);

// decodedTrytes === 'This is a test.'

---

dateToTrytes

dateToTrytes(date?: Date): string [7 trytes]

• encode a date to a string
• NOTICE: This uses UTC encoding, so any date below January 1st, 1970 will resolve to the aforementioned date.
• encoded dates are accurate to seconds (not milliseconds)

const tryteConverter = require('@iftt/tryte-encode-decode');

let date = new Date('2019-03-18T04:39:00.000Z');
let trytes = tryteConverter.dateToTrytes(date);

// trytes === 'D9F9RH9'

---

trytesToDate

trytesToDate(str?: string): Date

• decode trytes back to a date
• NOTICE: This uses UTC encoding, so any date below January 1st, 1970 will resolve to the aforementioned date.

const tryteConverter = require('@iftt/tryte-encode-decode');

let date = new Date('2019-03-18T04:39:00.000Z');
let trytes = tryteConverter.dateToTrytes(date);
let decodedTrytes = tryteConverter.trytesToDate(trytes);

// decodedTrytes === '2019-03-18T04:39:00.000Z'

---

int8ToTrytes

int8ToTrytes(num?: number): string [2 trytes]

• encode 8-bit sized numbers to trytes

const tryteConverter = require('@iftt/tryte-encode-decode');

let trytes = tryteConverter.int8ToTrytes(127);

// trytes === 'IL'

---

trytesToInt8

trytesToInt8(str?: string): number

• decode trytes to 8-bit sized numbers

const tryteConverter = require('@iftt/tryte-encode-decode');

let trytes = tryteConverter.int8ToTrytes(127);
let decodedTrytes = tryteConverter.trytesToInt8(trytes);

// decodedTrytes === 127

---

uInt8ToTrytes

uInt8ToTrytes(num?: number): string [2 trytes]

• encode 8-bit unsigned sized numbers to trytes

const tryteConverter = require('@iftt/tryte-encode-decode');

let trytes = tryteConverter.uInt8ToTrytes(255);

// trytes === 'IL'

---

int16ToTrytes

int16ToTrytes(num?: number): string [4 trytes]

• encode 16-bit sized numbers to trytes

const tryteConverter = require('@iftt/tryte-encode-decode');

let trytes = tryteConverter.int16ToTrytes(32767);

// trytes === 'CHXF'

---

trytesToInt16

trytesToInt16(str?: string): number

• decode trytes to 16-bit sized numbers

const tryteConverter = require('@iftt/tryte-encode-decode');

let trytes = tryteConverter.int16ToTrytes(32767);
let decodedTrytes = tryteConverter.trytesToInt16(trytes);

// decodedTrytes === 32767

---

uInt16ToTrytes

uInt16ToTrytes(num?: number): string [4 trytes]

• encode 16-bit unsigned sized numbers to trytes

const tryteConverter = require('@iftt/tryte-encode-decode');

let trytes = tryteConverter.uInt16ToTrytes(65535);

// trytes === 'CHXF'

---

int32ToTrytes

int32ToTrytes(num?: number): string [7 trytes]

• encode 32-bit sized numbers to trytes

const tryteConverter = require('@iftt/tryte-encode-decode');

let trytes = tryteConverter.int32ToTrytes(2147483647);

// trytes === 'KBHSYMU'

---

trytesToInt32

trytesToInt32(str?: string): number

• decode trytes to 32-bit sized numbers

const tryteConverter = require('@iftt/tryte-encode-decode');

let trytes = tryteConverter.int32ToTrytes(2147483647);
let decodedTrytes = tryteConverter.trytesToInt32(trytes);

// decodedTrytes === 2147483647

---

uInt32ToTrytes

uInt32ToTrytes(num?: number): string [7 trytes]

• encode 32-bit unsigned sized numbers to trytes

const tryteConverter = require('@iftt/tryte-encode-decode');

let trytes = tryteConverter.uInt32ToTrytes(4294967295);

// trytes === 'KBHSYMU'

---

trytesToUInt

trytesToUInt(str?: string): number

• decode trytes to any sized unsigned number

const tryteConverter = require('@iftt/tryte-encode-decode');

let trytes = tryteConverter.uInt32ToTrytes(4294967295);
let decodedTrytes = tryteConverter.trytesToUInt(trytes);

// decodedTrytes === 4294967295

---

booleanToTryte

booleanToTryte(bool?: boolean): string [1 tryte]

• encode a boolean value to trytes

const tryteConverter = require('@iftt/tryte-encode-decode');

let trytes = tryteConverter.booleanToTryte(false);

// trytes === '9'

---

tryteToBoolean

tryteToBoolean(str?: string): boolean

• decode a tryte to a boolean value

const tryteConverter = require('@iftt/tryte-encode-decode');

let trytes = tryteConverter.booleanToTryte(false);
let decodedTrytes = tryteConverter.tryteToBoolean(trytes);

// decodedTrytes === false

---

geoToTrytes

geoToTrytes(geo: { lat: number, lon: number }): string

• encode geospatial coordinates to trytes

let trytes = tryteConverter.geoToTrytes({ lat: 52.529562, lon: 13.413047 });

// trytes === 'NPHTQORL9XKP'

---

trytesToGeo

trytesToGeo(trytes: string): { lat: number, lon: number }

• decode trytes to geospatial coordinates

let trytes = tryteConverter.geoToTrytes({ lat: 52.529562, lon: 13.413047 });
let decodedTrytes = tryteConverter.trytesToGeo(trytes);

// decodedTrytes === { lat: 52.52956250000001, lon : 13.413046874999981 }

---

type DataTypes

enumerable string

• 'string' | 'int8' | 'uint8' | 'int16' | 'uint16' | 'int32' | 'uint32' | 'bool' | 'date'

---

arrayToTrytes

arrayToTrytes(arr?: array<any>, type: DataTypes): string [2 trytes arraySize + arraySize * type encoding size]

• encode an array of values to trytes

const tryteConverter = require('@iftt/tryte-encode-decode');

let array = ['a', 'b', 'c', 'd', 'e'];
let trytes = tryteConverter.arrayToTrytes(array, 'string');

// trytes === '9E999BPC999BQC999BRC999BSC999BTC'

---

trytesToArray

trytesToArray(str?: string, type: DataTypes): array<any>

• decode trytes to an array of values

const tryteConverter = require('@iftt/tryte-encode-decode');

let array = ['a', 'b', 'c', 'd', 'e'];
let trytes = tryteConverter.arrayToTrytes(array, 'string');
let decodedTrytes = tryteConverter.trytesToArray(trytes, 'string');

// decodedTrytes === ['a', 'b', 'c', 'd', 'e']

---

ISC License (ISC)

Copyright 2019 Copyright (c) 2004-2010 by Internet Systems Consortium, Inc. ("ISC") Copyright (c) 1995-2003 by Internet Software Consortium

Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.