Smileycoinjs

This package provides an API for interacting with a Smileycoin node(or supposedly any other node for that matter). This makes communication with a wallet using JavaScript much easier for you, by providing the API for most operations.

One possible use case could be to design a browser-based wallet of sorts, and include whatever information you want there.

How to use

First of all you have to have access to a running Smileycoin node. Information on how to build Smileycoin on your machine can be found here. You will have to run smileycoind.exe, or figure out how to run your node on cloud services.

const { Client } = require('smileycoinjs');

const smly = new Client({
    username: 'your rpcusername',
    password: 'your rpcpassword',
    url: 'the url to your node'
})

---

Sending funds

smly.send("<smileycoin address>", amount)
    .then((result) => {
        var info = JSON.parse(result);
        if(!info.error) console.log("Transaction successful!");
        else console.log("Transaction failed");
    })
    .catch((err) => {
        console.error(err);
    })

or the async method:

async function sendFunds(){
    let results;
    try {
        results = await smly.send("<smileycoin address>", amount);
    } catch(err) {
        console.error(err);
    }

    if(results && !results.error) console.log("Transaction successfull");
    else console.log("Transaction failed"); 
}

---

Create raw transaction

By getting values directly from listunspent, but may also just be hardcoded:

async function createRaw(){
    let unspent;
    try {
        unspent = await smly.listUnspent();
    } catch (err){
        unspent = null;
    }
    unspent = JSON.parse(unspent);
    var output = unspent.result;

    // Construct the outputs
    var transactions = [{
        txid: output[0].txid,
        vout: output[0].vout
    }];

    // Construct the inputs
    var addresses = {};
    addresses[output[0].address] = output[0].amount - 12;
    addresses[<address>] = 10;
    
    let result;
    try {
        result = await smly.createRawTransaction(transactions, addresses);
    } catch(err){
        console.log(err);
    }

    var info = JSON.parse(result);
    if(info && !info.error) console.log("createrawtransaction success - hexstring: " + info.result);
    else console.log("createrawtransaction failed - " + info.error);
}

Sign raw transaction

async function signRawTransaction(){
    let result;
    try { 
        result = await smly.signRawTransaction("<hexstring>")
    } catch(err){
        console.log("signrawtransaction failed - " + err);
    }
    var info = JSON.parse(result);
    if (info && !info.error) console.log("signrawtransaction successful - " + info.result);
    else console.log("signrawtransaction failed");
}

Send raw transaction

async function sendRawTransaction(){
    let result;
    try {
        result = await smly.sendRawTransaction("<hexstring from signing>");
    } catch (err) {
        console.error(err);
    }

    var info = JSON.parse(result);
    if(info && !info.error) console.log("Raw transaction sent successfully - " + info.result);
    else console.log("Raw transaction unsuccessful");
}

Generating a new address

smly.getNewAddress("<account>")
    .then((result) => {
        var info = JSON.parse(result);
        if(!info.error) console.log("New address generated successfully!");
        else console.log("Generating new address unsuccessful");
    })
    .catch(err => {
        console.error(err);
    });

More usage examples can be found in the test file

API commands

Supported operations at this point:

• getinfo
• getblockchaininfo
• getnetworkinfo
• getmininginfo
• getconnectioncount
• getbestblockhash
• getblock "hash" ( verbose )
• getblockcount
• getblockhash index
• getdifficulty
• ping
• dumpprivkey "smileycoinaddress"
• dumpwallet "filename"
• getaccount "smileycoinaddress"
• getaddressesbyaccount "account"
• getaccountaddress "account"
• getbalance ( "account" minconf )
• getunconfirmedbalance
• getwalletinfo
• getnewaddress ( "account" )
• getreceivedbyaccount "account" ( minconf )
• getreceivedbyaddress "smileycoinaddress" ( minconf )
• listreceivedbyaccount ( minconf includeempty )
• listreceivedbyaddress ( minconf includeempty )
• listaccounts ( minconf )
• listunspent ( minconf maxconf ["address",...] )
• settxfee amount
• gettransaction "txid"
• getrawtransaction "txid" ( verbose )
• sendtoaddress "address" amount
• sendfrom "fromaccount" "tosmileycoinaddress" amount ( minconf "comment" "comment-to" )
• sendmany "fromaccount" {"address":amount,...} ( minconf "comment" )
• listtransactions ( "account" count from )
• verifymessage "smileycoinaddress" "signature" "message"
• validateaddress "smileycoinaddress"
• createrawtransaction
• signrawtransaction
• sendrawtransaction
• signmessage "smileycoinaddress" "message"

---

TODO:

Operations that have not been implemented:

• addmultisigaddress nrequired ["key",...] ( "account" )
• addnode "node" "add|remove|onetry"
• backupwallet "destination"
• createmultisig nrequired ["key",...]
• decoderawtransaction "hexstring"
• decodescript "hex"
• encryptwallet "passphrase"
• getaddednodeinfo dns ( "node" )
• getblocktemplate ( "jsonrequestobject" )
• getgenerate
• gethashespersec
• getnettotals
• getpeerinfo
• getrawchangeaddress
• getrawmempool ( verbose )
• getrichaddresses
• gettxout "txid" n ( includemempool )
• gettxoutsetinfo
• getwork ( "data" )
• help ( "command" )
• importprivkey "smileycoinprivkey" ( "label" rescan )
• importwallet "filename"
• keypoolrefill ( newsize )
• listaddressgroupings
• listlockunspent
• listsinceblock ( "blockhash" target-confirmations )
• lockunspent unlock [{"txid":"txid","vout":n},...]
• move "fromaccount" "toaccount" amount ( minconf "comment" )
• setaccount "smileycoinaddress" "account"
• setgenerate generate ( genproclimit )
• submitblock "hexdata" ( "jsonparametersobject" )
• verifychain ( checklevel numblocks )