mirror of
https://github.com/Permissionless-Software-Foundation/psf-memo-client.git
synced 2026-09-21 16:52:02 -07:00
53 lines
1.7 KiB
JavaScript
53 lines
1.7 KiB
JavaScript
/*
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This script will write the CID for the current version of the app to an
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address on the BCH blockchain. This creates an immutable, censorship-resistant,
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globally available, and secure pointer to the latest version of the app.
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The exported function expects an IPFS CID as input and returns a TXID for a
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BCH transaction.
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This function expects this environtment variable to contain a WIF private key
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with BCH to write to the blockchain:
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- REACT_BOOTSTRAP_WEB3_SPA_WIF
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*/
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// Global npm libraries
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// const BCHJS = require('@psf/bch-js')
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const BchWallet = require('minimal-slp-wallet/index')
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const BchMessageLib = require('bch-message-lib/index')
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async function publishToBch (cid) {
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try {
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// Get the Filecoin token from the environment variable.
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const wif = process.env.REACT_BOOTSTRAP_WEB3_SPA_WIF
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if (!wif) {
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throw new Error(
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'WIF private key not detected. Get a private key from https://wallet.fullstack.cash and save it to the REACT_BOOTSTRAP_WEB3_SPA_WIF environment variable.'
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)
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}
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// Initialize libraries for working with BCH blockchain.
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// const bchjs = new BCHJS()
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const wallet = new BchWallet(wif, {
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interface: 'consumer-api'
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})
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await wallet.walletInfoPromise
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await wallet.initialize()
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const bchMsg = new BchMessageLib({ wallet })
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// Publish the CID to the BCH blockchain.
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const hex = await bchMsg.memo.memoPush(cid, 'IPFS UPDATE')
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// Broadcast the transaction to the network.
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const txid = await wallet.ar.sendTx(hex)
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// console.log(`BCH blockchain updated with new CID. TXID: ${txid}`)
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// console.log(`https://blockchair.com/bitcoin-cash/transaction/${txid}`)
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return txid
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} catch (err) {
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console.error(err)
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}
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}
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module.exports = publishToBch
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