XPOP Fetching / Generation

This lib. fetches a ready to use xPOP, fetches and encodes a JSON xPOP or even generates the entire xPOP based on sources running the xPOP source data service: "Validation Ledger & Transaction Store"

Methods to retrieve/generate, in order (unless params provided, see below):

1. Fetch ready to use HEX XPOP
2. Fetch JSON XPOP and encode to HEX
3. Fetch source files & compile XPOP & encode to HEX

Samples

Sample to generate & submit a B2M transaction on Testnet, resulting in an xPOP:

• https://gist.github.com/WietseWind/cd8a7a8c88f218fe7b768f59a665685d

Sample to use this script in the browser:

• https://jsfiddle.net/WietseWind/42kpm0hr/

Output

null (failed) or HEX encoded XPOP ready to use for import in the Blob field.

NPM, CDN

• NPM (backend): https://www.npmjs.com/package/xpop
• CDN (browser): https://cdn.jsdelivr.net/npm/xpop/browser.min.js

Example browser implementation:

• https://jsfiddle.net/WietseWind/42kpm0hr/

Methods

• setVerbose(bool) » console.log verbose info if true
• setEndpoints(string[]) » [ Mandatory ] - the URLs where the collector is running
• xpop(tx hash [, ledger index, network id, force ])

JS/Browser

Note: a list of recent endpoints can be found here:

• https://xrpl.ws-stats.com/xpop/list
• https://xrpl.ws-stats.com/xpop/list?json=true (see auto-fill example below)

const {setVerbose, setEndpoints, xpop} = require('xpop')

// setVerbose(true)
// setEndpoints((await (await fetch('https://xrpl.ws-stats.com/xpop/list?json=true')).json()).bestguess)

setEndpoints([
  'https://xpop.xrplwin.com/',  // Twitter: @XRPLWin
  'http://xpop.katczynski.org', // Twitter: @realkatczynski
  'https://xpop.xrpl-labs.com', // Twitter: @XRPLLabs
])

xpop('20D193C6E615D86BCC13A5DAB781852A6672F3E627D33FBAE62053F1178740BB', 41815218, 1, true)
  .then(console.log)

Pre-generated XPOP only:

// tx hash
xpop('20D193C6E615D86BCC13A5DAB781852A6672F3E627D33FBAE62053F1178740BB')

Pre-generated XPOP with fallback to pre-generated JSON

// tx hash, ledger index, network id
xpop('20D193C6E615D86BCC13A5DAB781852A6672F3E627D33FBAE62053F1178740BB', 41815218, 1)

Forced pre-generated / client side generated (fallback) JSON

// tx hash, ledger index, network id, true (force)
xpop('20D193C6E615D86BCC13A5DAB781852A6672F3E627D33FBAE62053F1178740BB', 41815218, 1, true)