@ravenrebels/ravencoin-jswallet

ravencoin-jswallet

Ravencoin wallet library for JavaScript. Non-custodial. By default it interacts with the Ravencoin blockchain using public RPC services from https://rpc.ting.finance/ for both testnet and mainnet. You are free to use any RPC-service you like, including your own. See section Run your own blockchain node for more info

EXPERIMENTAL.

This lib needs a lot of testing before being used in production. Only use on mainnet if you "play around". This lib supports EVR as well (see section at the end)

Example code

To run these code examples

1. Create an empty npm project
2. Install @ravenrebels/ravencoin-jswallet
3. Create a .mjs file called index.mjs

Minimalistic example

import RavencoinWallet from "@ravenrebels/ravencoin-jswallet";

RavencoinWallet.createInstance({
   mnemonic: "horse sort develop lab chest talk gift damp session sun festival squirrel",
   network: "rvn-test"
})
   .then(wallet => wallet.getBalance())
   .then(console.log);

Some stuff you can do

import RavencoinWallet from "@ravenrebels/ravencoin-jswallet";
const wallet = await RavencoinWallet.createInstance({
  mnemonic:
    "horse sort develop lab chest talk gift damp session sun festival squirrel",
  network: "rvn-test",
});

//OK now you have your wallet

//Example, get your addresses
const addresses = wallet.getAddresses();

//Address objects contains meta data about addresses, such as path/private key
const addressObjects = wallet.getAddressObjects();
 
//Get assets the wallet holds (not including mempool transactions) 
const assets = await wallet.getAssets();

//Get balance of base currency, like RVN, not including mempool transactions
const balance = await wallet.getBalance();


const changeAddress = await wallet.getChangeAddress();
const receiveAddress = await wallet.getReceiveAddress();

const firstPrivateKey = wallet.getPrivateKeyByAddress(addresses[0]);

//History, is the list of deltas for all the addresses in this wallet
const history = await wallet.getHistory();

//Get this wallets entries in the mempool right now
const mempool = await wallet.getMempool();
 
//Example send and print out the id, will throw exception if fails
const sendResult = await wallet.send({
  toAddress: "muTv54qzXc6ozEc1RH2JbM92jzpBtVJBbw",
  amount: 1,
});
console.log(sendResult.transactionId);

Configure to use with your local node

In this example we run a local node in testnet mode, and RPC port is set to 8888

const wallet = await RavencoinWallet.createInstance({
    mnemonic,
    network: "rvn-test",
    rpc_password: "mypassword",
    rpc_username: "myuser",
    rpc_url: "http://localhost:8888",
  });

Send RVN and ASSETS

//index.mjs very important that file extension is .mjs
import RavencoinWallet from "@ravenrebels/ravencoin-jswallet";

//This wallet belongs to account "Crazy Cat" on https://testnet.ting.finance/signin/
const options = {
  mnemonic:
    "mesh beef tuition ensure apart picture rabbit tomato ancient someone alter embrace",
  network: "rvn-test",
};
const wallet = await RavencoinWallet.createInstance(options);
const addy = await wallet.getReceiveAddress();
console.log("My receive address", addy);

//Send 100 RVN to Barry Crump on https://testnet.ting.finance/
await wallet.send({
  //Send 100 RVN
  toAddress: "mhBKhj5FxzBu1h8U6pSB16pwmjP7xo4ehG",
  amount: 100,
  assetName:"RVN",
});

//Send 313 BUTTER tokens to Barry Crump on https://testnet.ting.finance/
const transactionId = await wallet.send({
  assetName: "BUTTER",
  amount: 313,
  toAddress: "mhBKhj5FxzBu1h8U6pSB16pwmjP7xo4ehG",
});
console.log("Sending", transactionId);

Send many

//index.mjs very important that file extension is .mjs
import RavencoinWallet from "@ravenrebels/ravencoin-jswallet";

//This wallet belongs to account "Crazy Cat" on https://testnet.ting.finance/signin/
const options = {
  mnemonic:
    "mesh beef tuition ensure apart picture rabbit tomato ancient someone alter embrace",
  network: "rvn-test",
};
const wallet = await RavencoinWallet.createInstance(options);

//Send asset BUTTER to multiple recipients
const result = await wallet.sendMany({
  assetName: "BUTTER",
  outputs: {
    muTv54qzXc6ozEc1RH2JbM92jzpBtVJBbw: 1,
    mhWahrbRX6xBBrRjCo6ZkazaugXftD1CbM: 2,
  },
});

console.log("Sending", result.transactionId);

Evrmore

To support EVR instead of RVN Create an instance of wallet and set baseCurrency

wallet.setBaseCurrency("EVR");

API

When you create your instance of a wallet you can specify some stuff.

You can set network to be something else than RVN, for example EVR.

You can specify your own RPC node URL and username/password.

export interface IOptions {
    mnemonic: string;
    network?: ChainType; (that is "rvn" | "rvn-test" | "evr" | "evr-test")
    rpc_username?: string;
    rpc_password?: string;
    rpc_url?: string;
}

Check the TypeScript definitions for all the details

Run your own blockchain node

If you want to run your own internet exposed Node, checkout our RPC proxy. With RPC proxy and Cloudlare you can get a secure endpoint like https://rpc.mydomain.com/rpc checkout

• https://github.com/ravenrebels/ravencoin-rpc-proxy
• https://www.cloudflare.com/products/tunnel/

Advanced - pure RPC

You have access to the underlaying RPC function, wallet.rpc. See example

import RavencoinWallet from "@ravenrebels/ravencoin-jswallet";
async function main(){
  const wallet = await RavencoinWallet.createInstance({
    mnemonic: "horse sort develop lab chest talk gift damp session sun festival squirrel",
    network: "rvn-test",
  });
  const blockhash = await wallet.rpc("getbestblockhash", []);
  const block = await wallet.rpc("getblock", [blockhash]);
  console.log(block);
}
main();