JavaScript library for the Metaverse Blockchain Websocket and JSON-RPC services

Metaverse Websocket and JSONRPC

Setup

npm i mvsd

JSON-RPC

Initialize the connection settings

const { MvsdJSONRPC } = require('mvsd')
const mvsd = new MvsdJSONRPC('http://127.0.0.1:8820/rpc/v3')

Get the current height of the blockchain

mvsd.getHeight().subscribe(console.log)

Get a block by its number or txid

mvsd.getBlock({number: 100})
    .subscribe(console.log)
// or by txid
mvsd.getBlock({txid: 'b81848ef9ae86e84c3da26564bc6ab3a79efc628239d11471ab5cd25c0684c2d'})
    .subscribe(console.log)

Send new encoded raw transaction

mvsd.sendrawtx({tx: '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'})
    .subscribe(console.log)

other functions

tx-decode validate-tx getnewaccount getaccount deleteaccount importaccount changepasswd getnewaddress validateaddress listaddresses dumpkeyfile importkeyfile importaddress shutdown getinfo addnode getpeerinfo getrandom verifyrandom startmining stopmining getmininginfo getstakeinfo setminingaccount getwork submitwork getmemorypool registerwitness getblockheader fetchheaderext gettx listtxs popblock createrawtx decoderawtx signrawtx getpublickey createmultisigtx getnewmultisig listmultisig deletemultisig signmultisigtx send sendmore sendfrom lock listbalances getbalance getaddressetp getlocked validatesymbol createasset deletelocalasset issue secondaryissue sendasset sendmoreasset sendassetfrom listassets getasset getaccountasset getaddressasset burn swaptoken issuecert transfercert registermit transfermit listmits getmit registerdid didchangeaddress listdids getdid

Websocket

Initialize the connection (NodeJS)

const { MvsdWebsocket } = require('mvsd')
const websocket = new MvsdWebsocket('ws://127.0.0.1:8821/ws')

Initialize the connection (Browser)

<script src="./dist/mvsd.browser.js"></script>
<script>
    const websocket = new Mvsd.MvsdWebsocket('ws://127.0.0.1:8821/ws')
</script>

Connect to server

websocket.connect()

Check for status

mvsd.ready.subscribe(ready => {
    if(ready){
        return console.log('websocket ready')
    }
    console.log('websocket not ready')
})

Subscribe to transactions

mvsd.subscribeTransactions()
// or
mvsd.subscribeTransactions(['YOUR_ADDRESS_1', 'YOUR_ADDRESS_2'])

Subscribe to blocks

mvsd.subscribeBlocks()

Process incomming transactions

mvsd.transactions.subscribe((tx) => {
    if (tx.height > 0) {
        console.log('tx confirmed', tx.hash)
    } else {
        console.log('received unconfirmed tx', tx.hash)
    }
})

Process incomming blocks

mvsd.blocks.subscribe((block) => console.log('received block', block.hash))