Cashback

mkdir cashback (1)
cd cashback (2)
npm init --yes (3)

const { Application, genesisBlockDevnet, configDevnet } = require('lisk-sdk'); (1)

configDevnet.app.label = 'cashback-blockchain-app'; (2)
//configDevnet.components.storage.user = '<username>'; (3)
// configDevnet.components.storage.password = 'password'; (4)

const app = new Application(genesisBlockDevnet, configDevnet); (5)

app (6)
    .run()
    .then(() => app.logger.info('App started...'))
    .catch(error => {
        console.error('Faced error in application', error);
        process.exit(1);
    });

node index.js | npx bunyan -o short

const {
    transactions: { TransferTransaction },
    BigNum,
} = require('lisk-sdk');

class CashbackTransaction extends TransferTransaction {

    /**
    * Set the Cashback transaction TYPE to `11`.
    * The first 10 types, from `0-9` is reserved for the default Lisk Network functions.
    * Type `10` was used previously for the `HelloTransaction`, so it is set to `11`, but any other integer value (that is not already used by another transaction type) is a valid value.
    */
    static get TYPE () {
        return 11;
    }

    /**
    * Set the `CashbackTransaction` transaction FEE to 0.1 LSK.
    * Every time a user posts a transaction to the network, the transaction fee is paid to the delegate who includes the transaction into a block that the delegate forges.
    */
    static get FEE () {
        return `${10 ** 7}`;
    };

    /**
    * The CashbackTransaction adds an inflationary 10% to senders account.
    * Invoked as part of the apply() step of the BaseTransaction and block processing.
    */
    applyAsset(store) {
        super.applyAsset(store);

        const sender = store.account.get(this.senderId);
        const updatedSenderBalanceAfterBonus = new BigNum(sender.balance).add(
            new BigNum(this.amount).div(10)
        );
        const updatedSender = {
            ...sender,
            balance: updatedSenderBalanceAfterBonus.toString(),
        };
        store.account.set(sender.address, updatedSender);

        return [];
    }

    /**
    * Inverse of applyAsset().
    * Undoes the changes made in `applyAsset` step: It sends the transaction amount back to the sender and substracts 10% of the transaction amount from the senders account balance.
    */
    undoAsset(store) {
        super.undoAsset(store);

        const sender = store.account.get(this.senderId);
        const updatedSenderBalanceAfterBonus = new BigNum(sender.balance).sub(
            new BigNum(this.amount).div(10)
        );
        const updatedSender = {
            ...sender,
            balance: updatedSenderBalanceAfterBonus.toString(),
        };
        store.account.set(sender.address, updatedSender);

        return [];
    }
}

module.exports = CashbackTransaction;

const { Application, genesisBlockDevnet, configDevnet} = require('lisk-sdk'); (1)
const CashbackTransaction = require('./cashback_transaction'); (2)

configDevnet.app.label = 'cashback-blockchain-app'; (3)
//configDevnet.components.storage.user = '<username>'; (4)
configDevnet.components.storage.password = 'password'; (5)

const app = new Application(genesisBlockDevnet, configDevnet); (6)

app.registerTransaction(CashbackTransaction); (7)

app (8)
    .run()
    .then(() => app.logger.info('App started...'))
    .catch(error => {
        console.error('Faced error in application', error);
        process.exit(1);
    });

node index.js | npx bunyan -o short

cd cashback (1)
mkdir client (2)
cd client (3)

const CashbackTransaction = require('../cashback_transaction');
const transactions = require('@liskhq/lisk-transactions');
const { EPOCH_TIME } = require('@liskhq/lisk-constants');

const getTimestamp = () => {
    // check config file or curl localhost:4000/api/node/constants to verify your epoc time
    const millisSinceEpoc = Date.now() - Date.parse(EPOCH_TIME);
    const inSeconds = ((millisSinceEpoc) / 1000).toFixed(0);
    return  parseInt(inSeconds);
};

const tx = new CashbackTransaction({
    amount: `${transactions.utils.convertLSKToBeddows('2')}`,
    fee: `${transactions.utils.convertLSKToBeddows('0.1')}`,
    recipientId: '10881167371402274308L', //delegate genesis_100
    timestamp: getTimestamp(),
});

tx.sign('wagon stock borrow episode laundry kitten salute link globe zero feed marble');

console.log(tx.stringify());
process.exit(0);

node print_sendable_cashback.js | python -m json.tool

{
   "id":"5372254888441494149",
   "amount":"200000000",
   "type":11,
   "timestamp":3,
   "senderPublicKey":"c094ebee7ec0c50ebee32918655e089f6e1a604b83bcaa760293c61e0f18ab6f",
   "senderId":"16313739661670634666L",
   "recipientId":"10881167371402274308L",
   "fee":"10000000",
   "signature":"0a3f41cc529f9de523cadc7db64e9436014d1b10ca2158bbce0469e8e76dfd021358496440da43acaf64d0223d3514609fc1aa41646be56353207d88a03b1305",
   "signatures":[],
   "asset":{}
}

curl -X GET "http://localhost:4000/api/accounts?address=16313739661670634666L" -H "accept: application/json" | python -m json.tool

{
  "meta": {
    "offset": 0,
    "limit": 10
  },
  "data": [
    {
      "address": "16313739661670634666L",
      "publicKey": "c094ebee7ec0c50ebee32918655e089f6e1a604b83bcaa760293c61e0f18ab6f",
      "balance": "10000000000000000",
      "secondPublicKey": ""
    }
  ],
  "links": {}
}

curl -X GET "http://localhost:4000/api/accounts?address=10881167371402274308L" -H "accept: application/json" | python -m json.tool

{
  "meta": {
    "offset": 0,
    "limit": 10
  },
  "data": [
    {
      "address": "10881167371402274308L",
      "publicKey": "addb0e15a44b0fdc6ff291be28d8c98f5551d0cd9218d749e30ddb87c6e31ca9",
      "balance": "0",
      "secondPublicKey": "",
      "delegate": {
        "username": "genesis_100",
        "vote": "9999999680000000",
        "rewards": "1500000000",
        "producedBlocks": 26,
        "missedBlocks": 0,
        "rank": 70,
        "productivity": 100,
        "approval": 100
      }
    }
  ],
  "links": {}
}

node print_sendable_cashback.js | tee >(curl -X POST -H "Content-Type: application/json" -d @- localhost:4000/api/transactions) (1)

curl -X GET "http://localhost:4000/api/transactions?id=5372254888441494149" -H "accept: application/json" | python -m json.tool

{
  "meta": {
    "offset": 0,
    "limit": 10,
    "count": 1
  },
  "data": [
    {
      "id": "5372254888441494149",
      "height": 2048,
      "blockId": "12427514488773581697",
      "type": 11,
      "timestamp": 3,
      "senderPublicKey": "c094ebee7ec0c50ebee32918655e089f6e1a604b83bcaa760293c61e0f18ab6f",
      "recipientPublicKey": "addb0e15a44b0fdc6ff291be28d8c98f5551d0cd9218d749e30ddb87c6e31ca9",
      "senderId": "16313739661670634666L",
      "recipientId": "10881167371402274308L",
      "amount": "100000000",
      "fee": "10000000",
      "signature": "0a3f41cc529f9de523cadc7db64e9436014d1b10ca2158bbce0469e8e76dfd021358496440da43acaf64d0223d3514609fc1aa41646be56353207d88a03b1305",
      "signatures": [],
      "asset": {},
      "confirmations": 5
    }
  ],
  "links": {}
}

curl -X GET "http://localhost:4000/api/accounts?address=16313739661670634666L" -H "accept: application/json" | python -m json.tool

{
  "meta": {
    "offset": 0,
    "limit": 10
  },
  "data": [
    {
      "address": "16313739661670634666L",
      "publicKey": "c094ebee7ec0c50ebee32918655e089f6e1a604b83bcaa760293c61e0f18ab6f",
      "balance": "9999999810000000",
      "secondPublicKey": ""
    }
  ],
  "links": {}
}

curl -X GET "http://localhost:4000/api/accounts?address=10881167371402274308L" -H "accept: application/json" | python -m json.tool

{
  "meta": {
    "offset": 0,
    "limit": 10
  },
  "data": [
    {
      "address": "10881167371402274308L",
      "publicKey": "addb0e15a44b0fdc6ff291be28d8c98f5551d0cd9218d749e30ddb87c6e31ca9",
      "balance": "200000000",
      "secondPublicKey": "",
      "delegate": {
        "username": "genesis_100",
        "vote": "9999999680000000",
        "rewards": "1500000000",
        "producedBlocks": 26,
        "missedBlocks": 0,
        "rank": 70,
        "productivity": 100,
        "approval": 100
      }
    }
  ],
  "links": {}
}

cd cashback (1)
pm2 start --name cashback index.js (2)
pm2 stop cashback (3)
pm2 start cashback (4)

const { Application, genesisBlockDevnet, configDevnet} = require('lisk-sdk'); (1)
const CashbackTransaction = require('./cashback_transaction'); (2)

configDevnet.app.label = 'cashback-blockchain-app'; (3)
//configDevnet.components.storage.user = '<username>'; (4)
//configDevnet.components.storage.password = 'password'; (5)

configDevnet.modules.http_api.access.public = true; (6)
//configDevnet.modules.http_api.access.whitelist.push('1.2.3.4'); (7)

const app = new Application(genesisBlockDevnet, configDevnet); (8)

app.registerTransaction(CashbackTransaction); (9)

app (10)
    .run()
    .then(() => app.logger.info('App started...'))
    .catch(error => {
        console.error('Faced error in application', error);
        process.exit(1);
    });