Ripple

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Gene Leybzon

Software engineer view on Ripple and Ripple API with some hands-on experiments to transfer XRP between accounts

Software

RIPPLE
Ripple is a real-time fund settlement system, currency exchange, and remittan
https://developers.ripple.com/
Transaction processing
Fast consensus algorithm
Limited XPR coin supply
Secure with Ed25519
On-ledger decentralized exchange

PRE-BUILT FEATURES /1
Going beyond simple payments
https://developers.ripple.com/
Payment channels Escrow
{ "TransactionType" :
"DepositPreauth", "Account" :
"rsUiUMpnrgxQp24dJYZDhmV4bE
3aBtQyt8", "Authorize" :
"rEhxGqkqPPSxQ3P25J66ft5Twpz
V14k2de", "Fee" : "10", "Flags" :
2147483648, "Sequence" : 2 }
Deposit pre-authorization

$PRE-BUILT FEATURES /2 Going beyond simple payments https://ripple.com/ Decentralized Exchange Amendments Invariant Checking { "result":{ "error":"amendmentBlocked", "error_code":14, "error_message":"Amendment blocked, need upgrade.", "request":{ "command":"submit", "tx_blob":"479H0KQ4LUUXIHL48WCVN0C9VD7HWSX0 MG1UPYNXK6PI9HLGBU2U10K3HPFJSROFEG5VD749 WDPHWSHXXO72BOSY2G8TWUDOJNLRTR9LTT8PS OB9NNZ485EY2RD9D80FLDFRBVMP1RKMELILD7I922 D6TBCAZK30CSV6KDEDUMYABE0XB9EH8C4LE98LM U91I9ZV2APETJD4AYFEN0VNMIT1XQ122Y2OOXO45G J737HHM5XX88RY7CXHVWJ5JJ7NYW6T1EEBW9UE0 NLB2497YBP9V1XVAEK8JJYVRVW0L03ZDXFY8BBHP 6UBU7ZNR0JU9GJQPNHG0DK86S4LLYDN0BTCF4KW V2J4DEB6DAX4BDLNPT87MM75G70DFE9W0R6HRNW CH0X075WHAXPSH7S3CSNXPPA6PDO6UA1RCCZOV Z99H7968Q37HACMD8EZ8SU81V4KNRXM46N520S4F VZNSJHA" }, "status":"error" } }$

RIPPLE LEDGER
https://developers.ripple.com/

ALICE SENDS XPR TO BOB
https://developers.ripple.com/
0.01

PLAN
https://developers.ripple.com/
Start Linux Node
Install Software
Create Ripple Accounts
for Alice and Bob
Write code
Run!

GOOGLE CLOUD
https://console.cloud.google.com/compute/instances

START LINUX VM INSTANCE
(CENTOS 7)
https://console.cloud.google.com/compute/instances

OPEN SSH WINDOW AND INSTALL
SOFTWARE
Step 1. Install NodeJS
sudo yum install -y nodejs
Step 2. Install Yarn dependency manager
sudo npm install yarn -g
Step 3. Install Ripple library for JavaScript
yarn add ripple-lib

CREATE ACCOUNTS AND GET
SOME TEST XPR
https://developers.ripple.com/xrp-test-net-faucet.html

WRITE JS CODE (OR DOWNLOAD
IT)
'use strict';
const RippleAPI = require('ripple-lib').RippleAPI;
const addressFrom = 'rJpr9nKV7aikyFdUtPvuumAHYXvNJady1e’;
const secret = 'shiMavwRGuf2DhCbzVzaSKRSCMHkV';
const prodServer = 'wss://s1.ripple.com:443';const testServer = 'wss://s.altnet.rippletest.net:51233';
const addressTo = 'rDDFfub1aJaqsrztpHcoaJPBYg1eQZxKzs;
const api = new RippleAPI({server: testServer});
const instructions = {maxLedgerVersionOffset: 5};
…
https://github.com/Leybzon/Ripple-Baby-Steps

RUN
[leybzon]$ node payment.js
Connected...
Payment transaction prepared...Payment transaction signed...{ resultCode: 'tesSUCCESS',
resultMessage: 'The transaction was applied. Only final in a validated ledger.' }

CHECK THE LEDGER FOR ALICE
HTTPS://RIPPLERM.GITHUB.IO/RIPPLE-WALLET/

CHECK THE LEDGER FOR BOB
HTTPS://RIPPLERM.GITHUB.IO/RIPPLE-WALLET/

STAY IN TOUCH
Gene Leybzon https://www.linkedin.com/in/leybzon/
https://www.meetup.com/members/90744
20/
https://www.Leybzon.com

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1. RIPPLE FROM SOFTWARE ENGINEER POINT OF VIEW Ripple introduction for Software Developers and Architects

2. RIPPLE Ripple is a real-time fund settlement system, currency exchange, and remittan https://developers.ripple.com/ Transaction processing Fast consensus algorithm Limited XPR coin supply Secure with Ed25519 On-ledger decentralized exchange

3. PRE-BUILT FEATURES /1 Going beyond simple payments https://developers.ripple.com/ Payment channels Escrow { "TransactionType" : "DepositPreauth", "Account" : "rsUiUMpnrgxQp24dJYZDhmV4bE 3aBtQyt8", "Authorize" : "rEhxGqkqPPSxQ3P25J66ft5Twpz V14k2de", "Fee" : "10", "Flags" : 2147483648, "Sequence" : 2 } Deposit pre-authorization

4. PRE-BUILT FEATURES /2 Going beyond simple payments https://ripple.com/ Decentralized Exchange Amendments Invariant Checking { "result":{ "error":"amendmentBlocked", "error_code":14, "error_message":"Amendment blocked, need upgrade.", "request":{ "command":"submit", "tx_blob":"479H0KQ4LUUXIHL48WCVN0C9VD7HWSX0 MG1UPYNXK6PI9HLGBU2U10K3HPFJSROFEG5VD749 WDPHWSHXXO72BOSY2G8TWUDOJNLRTR9LTT8PS OB9NNZ485EY2RD9D80FLDFRBVMP1RKMELILD7I922 D6TBCAZK30CSV6KDEDUMYABE0XB9EH8C4LE98LM U91I9ZV2APETJD4AYFEN0VNMIT1XQ122Y2OOXO45G J737HHM5XX88RY7CXHVWJ5JJ7NYW6T1EEBW9UE0 NLB2497YBP9V1XVAEK8JJYVRVW0L03ZDXFY8BBHP 6UBU7ZNR0JU9GJQPNHG0DK86S4LLYDN0BTCF4KW V2J4DEB6DAX4BDLNPT87MM75G70DFE9W0R6HRNW CH0X075WHAXPSH7S3CSNXPPA6PDO6UA1RCCZOV Z99H7968Q37HACMD8EZ8SU81V4KNRXM46N520S4F VZNSJHA" }, "status":"error" } }

5. RIPPLE LEDGER https://developers.ripple.com/

6. HANDS-ON Accessing Ripple from NodeJS

7. ALICE SENDS XPR TO BOB https://developers.ripple.com/ 0.01

8. PLAN https://developers.ripple.com/ Start Linux Node Install Software Create Ripple Accounts for Alice and Bob Write code Run!

9. GOOGLE CLOUD https://console.cloud.google.com/compute/instances

10. START LINUX VM INSTANCE (CENTOS 7) https://console.cloud.google.com/compute/instances

11. START LINUX VM INSTANCE (CENTOS 7) https://console.cloud.google.com/compute/instances

12. OPEN SSH WINDOW AND INSTALL SOFTWARE Step 1. Install NodeJS sudo yum install -y nodejs Step 2. Install Yarn dependency manager sudo npm install yarn -g Step 3. Install Ripple library for JavaScript yarn add ripple-lib

13. CREATE ACCOUNTS AND GET SOME TEST XPR https://developers.ripple.com/xrp-test-net-faucet.html

14. WRITE JS CODE (OR DOWNLOAD IT) 'use strict'; const RippleAPI = require('ripple-lib').RippleAPI; const addressFrom = 'rJpr9nKV7aikyFdUtPvuumAHYXvNJady1e’; const secret = 'shiMavwRGuf2DhCbzVzaSKRSCMHkV'; const prodServer = 'wss://s1.ripple.com:443';const testServer = 'wss://s.altnet.rippletest.net:51233'; const addressTo = 'rDDFfub1aJaqsrztpHcoaJPBYg1eQZxKzs; const api = new RippleAPI({server: testServer}); const instructions = {maxLedgerVersionOffset: 5}; … https://github.com/Leybzon/Ripple-Baby-Steps

15. RUN [leybzon]$ node payment.js Connected... Payment transaction prepared...Payment transaction signed...{ resultCode: 'tesSUCCESS', resultMessage: 'The transaction was applied. Only final in a validated ledger.' }

16. CHECK THE LEDGER FOR ALICE HTTPS://RIPPLERM.GITHUB.IO/RIPPLE-WALLET/

17. CHECK THE LEDGER FOR BOB HTTPS://RIPPLERM.GITHUB.IO/RIPPLE-WALLET/

18. QUESTIONS

19. STAY IN TOUCH Gene Leybzon https://www.linkedin.com/in/leybzon/ https://www.meetup.com/members/90744 20/ https://www.Leybzon.com

Ripple

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