znn-ts-sdk

Official RPC documentation:

https://wiki.zenon.network/#!api.md

npm install github:dexter703/znn-ts-sdk

Compatible with Typescript 4.5, ES2020, Webpack 5, Angular 13, React 17

Importing sdk. Check here for common issues

For browser env:

import {
  KeyStore,
  KeyStoreManager,
  Zenon,
  Constants,
  Primitives
} from 'znn-ts-sdk';

For server env (nodeJS):

import znn from 'znn-ts-sdk/dist/index.node.js';
const {KeyStore, KeyStoreManager, Zenon, Primitives, Constants} = znn;

Importing other models and constants

import {
  Primitives,
  Constants
} from 'znn-ts-sdk';

const { 
  Address,
  Hash,
  GetRequiredParam,
  AccountBlockTemplate,
  TokenStandard,
} = Primitives;

const {
  pillarAddress,
  plasmaAddress,
  stakeAddress,
  znnTokenStandard,
  qsrTokenStandard,
  emptyTokenStandard,
  znnZts,
  qsrZts,
  emptyZts,
} = Constants

Initializing client and connecting to a server

const zenon = Zenon.getSingleton();
zenon.initialize(this.zenon.defaultServerUrl);

Generating address from scratch with a wallet name and password (for storage purposes)

try{
  const keyManager: KeyStoreManager = new KeyStoreManager();
  await keyManager.createNew("pass", "name");
  const keyStore: KeyStore = await keyManager.readKeyStore("pass", "name");
  const generatedMnemonic: string = keyStore['mnemonic']!;
  const keyPair: KeyPair = keyStore.getKeyPair(0);
  const address: Address = await keyPair.getAddress();
  const readableAddress: string = address.toString();
}
catch (err) { 
  console.error(err);
}    

Importing an address from mnemonic

try{
  const mnemonic =
    'route become dream access impulse price inform obtain engage ski believe awful absent pig thing vibrant possible exotic flee pepper marble rural fire fancy';

  const keyStore = new KeyStore().fromMnemonic(mnemonic);

  const keyPair:KeyPair = keyStore.getKeyPair(0);

  const privateKey: Buffer = keyPair.getPrivateKey();
  console.log("private key", privateKey.toString('hex'));

  const entropy: string|undefined = keyStore.entropy;
  console.log("entropy", entropy);

  const publicKey:Buffer = await keyPair.getPublicKey();
  console.log("public key:", publicKey.toString('hex'));

  const address: Address = await keyPair.getAddress();
  console.log("address:", address.toString());
  console.log("core bytes:", address.core.toString('hex'));
}
catch (err) { 
  console.error(err);
}

Sending a transaction

// Having 8 decimals will mean that
// 1 ZNN = 100000000

const addressToSend: Address = Address.parse("z1qqjnwjjpnue8xmmpanz6csze6tcmtzzdtfsww7");
const AccountBlockTemplateSend:AccountBlockTemplate = AccountBlockTemplate.send(addressToSend, Constants.znnZts, 10000000000);
await zenon.send(AccountBlockTemplateSend, currentKeyPair);

Receiving a transaction

const addressToReceiveTo: Address = Address.parse("z1qqjnwjjpnue8xmmpanz6csze6tcmtzzdtfsww7");
const startingPage = 0 ;
const pageSize = 10;

const getUnreceivedBlocksByAddress:AccountBlockList = await this.zenon.ledger.getUnreceivedBlocksByAddress(addressToReceiveTo, startingPage, pageSize);

if(getUnreceivedBlocksByAddress.count! > 0){
  let AccountBlockTemplateReceive:AccountBlockTemplate = AccountBlockTemplate.receive(getUnreceivedBlocksByAddress!.list![0]!.hash!);
}

Ledger examples

const addressObject = Address.parse("z1qqjnwjjpnue8xmmpanz6csze6tcmtzzdtfsww7");
const rpcMaxPageSize: number = 1024;
const memoryPoolPageSize: number = 50;

const getUnconfirmedBlocksByAddress: AccountBlockList = await this.zenon.ledger.getUnconfirmedBlocksByAddress(addressObject, 0, memoryPoolPageSize);
console.log("ledger.getUnconfirmedBlocksByAddress", getUnconfirmedBlocksByAddress);

const getUnreceivedBlocksByAddress: AccountBlockList = await this.zenon.ledger.getUnreceivedBlocksByAddress(addressObject, 0, memoryPoolPageSize);
console.log("ledger.getUnreceivedBlocksByAddress", getUnreceivedBlocksByAddress);

const getFrontierBlock = await this.zenon.ledger.getFrontierBlock(addressObject);
console.log("ledger.getFrontierBlock", getFrontierBlock);

const getBlockByHash = await this.zenon.ledger.getBlockByHash(getFrontierBlock?.hash);
console.log("ledger.getBlockByHash", getBlockByHash);

const getBlocksByHeight = await this.zenon.ledger.getBlocksByHeight(addressObject, 1, rpcMaxPageSize);
console.log("ledger.getBlocksByHeight", getBlocksByHeight);

const getBlocksByPage = await this.zenon.ledger.getBlocksByPage(addressObject, 0, rpcMaxPageSize);
console.log("ledger.getBlocksByPage", getBlocksByPage);

const getFrontierMomentum = await this.zenon.ledger.getFrontierMomentum();
console.log("ledger.getFrontierMomentum", getFrontierMomentum);

const getMomentumBeforeTime = await this.zenon.ledger.getMomentumBeforeTime(getFrontierMomentum.timestamp);
console.log("ledger.getMomentumBeforeTime", getMomentumBeforeTime);

const getMomentumByHash = await this.zenon.ledger.getMomentumByHash(getFrontierMomentum.hash);
console.log("ledger.getMomentumByHash", getMomentumByHash);

const getMomentumsByHeight = await this.zenon.ledger.getMomentumsByHeight(getFrontierMomentum.height, rpcMaxPageSize);
console.log("ledger.getMomentumsByHeight", getMomentumsByHeight);

const getMomentumsByPage = await this.zenon.ledger.getMomentumsByPage(0, rpcMaxPageSize);
console.log("ledger.getMomentumsByPage", getMomentumsByPage);

const getDetailedMomentumsByHeight = await this.zenon.ledger.getDetailedMomentumsByHeight(getFrontierMomentum.height, rpcMaxPageSize);
console.log("ledger.getDetailedMomentumsByHeight", getDetailedMomentumsByHeight);

const getAccountInfoByAddress = await this.zenon.ledger.getAccountInfoByAddress(addressObject);
console.log("ledger.getAccountInfoByAddress", getAccountInfoByAddress);

Pillar examples

const addressObject = Address.parse("z1qqjnwjjpnue8xmmpanz6csze6tcmtzzdtfsww7");
const rpcMaxPageSize: number = 1024;
const memoryPoolPageSize: number = 50;

const getDepositedQsr = await this.zenon.embedded.pillar.getDepositedQsr(addressObject);
console.log("pillar.getDepositedQsr", getDepositedQsr);

const getUncollectedReward = await this.zenon.embedded.pillar.getUncollectedReward(addressObject);
console.log("pillar.getUncollectedReward", getUncollectedReward);

const getFrontierRewardByPage = await this.zenon.embedded.pillar.getFrontierRewardByPage(addressObject, 0, rpcMaxPageSize);
console.log("pillar.getFrontierRewardByPage", getFrontierRewardByPage);

const getQsrRegistrationCost = await this.zenon.embedded.pillar.getQsrRegistrationCost();
console.log("pillar.getQsrRegistrationCost", getQsrRegistrationCost);

const getAll = await this.zenon.embedded.pillar.getAll(0, rpcMaxPageSize);
console.log("pillar.getAll", getAll.list[0]);
console.log("pillar.getAll", new Address(getAll.list[0].ownerAddress.hrp, getAll.list[0].ownerAddress.core).toString());

const getByOwner = await this.zenon.embedded.pillar.getByOwner(addressObject);
console.log("pillar.getByOwner", getByOwner);

const getByName = await this.zenon.embedded.pillar.getByName("pillarName");
console.log("pillar.getByName", getByName);

const checkNameAvailability = await this.zenon.embedded.pillar.checkNameAvailability("pillarName");
console.log("pillar.checkNameAvailability", checkNameAvailability);

const getDelegatedPillar = await this.zenon.embedded.pillar.getDelegatedPillar(addressObject);
console.log("pillar.getDelegatedPillar", getDelegatedPillar);

const getPillarsHistoryByEpoch = await this.zenon.embedded.pillar.getPillarsHistoryByEpoch(1, 0, rpcMaxPageSize);
console.log("pillar.getPillarsHistoryByEpoch", getPillarsHistoryByEpoch);

Plasma examples

const getPlasma = await this.zenon.embedded.plasma.get(addressObject);
console.log("plasma.getPlasma", getPlasma);

const getEntriesByAddress = await this.zenon.embedded.plasma.getEntriesByAddress(addressObject);
console.log("plasma.getEntriesByAddress", getEntriesByAddress);

const getRequiredFusionAmount = await this.zenon.embedded.plasma.getRequiredFusionAmount(1);
console.log("plasma.getRequiredFusionAmount", getRequiredFusionAmount);

// Fuse
const fusePlasmaCall = await this.zenon.embedded.plasma.fuse(myAddress, 3600000000);
console.log("fusePlasmaCall:" , fusePlasmaCall);
console.log(await this.zenon.send(fusePlasmaCall, currentKeyPair));

// Cancel fuse
for(const fusEntry of getEntriesByAddress.list){
  const cancelPlasmaCall = await this.zenon.embedded.plasma.cancel(fusEntry.id);
  console.log("cancelPlasmaCall: ", fusEntry.id, cancelPlasmaCall);
  console.log(await this.zenon.send(cancelPlasmaCall, currentKeyPair));
}

Token examples

const getAll = await this.zenon.embedded.token.getAll(0, rpcMaxPageSize);
console.log("token.getAll", getAll);
console.log("myToken", getAll["list"][4].owner.toString());
console.log("owner", getAll["list"][4].tokenStandard.toString());

const tokenOwner = getAll.list[0].owner;
const getByOwner = await this.zenon.embedded.token.getByOwner(tokenOwner, 0, rpcMaxPageSize);
console.log("token.getByOwner", getByOwner); 

const tokenStandard = getByOwner.list[0].tokenStandard;
const getByZts = await this.zenon.embedded.token.getByZts(tokenStandard);
console.log("token.getByZts", getByZts); 

// IssueToken
const issueTokenCall = await this.zenon.embedded.token.issueToken("testToken", "TSTKN", "website.com", 1, 1000000000, 0, true, true, true);
console.log("ISSUE issueTokenCall:" ,issueTokenCall);
console.log(this.zenon.send(issueTokenCall, currentKeyPair));

// Mint
const encodedCall = await this.zenon.embedded.token.mint(tokenStandard, 1, myAddress);
console.log("MINT encodedCall:" ,encodedCall);
console.log(this.zenon.send(encodedCall, currentKeyPair));

// Burn
const burnEncodedCall = await this.zenon.embedded.token.burnToken(tokenStandard, 1);
console.log("burn burnEncodedCall:" , burnEncodedCall);
console.log(await this.zenon.send(burnEncodedCall, currentKeyPair));

// Update
const updateEncodedCall = await this.zenon.embedded.token.updateToken(tokenStandard, myAddress, true, true);
console.log("update updateEncodedCall:" , updateEncodedCall);
console.log(await this.zenon.send(updateEncodedCall, currentKeyPair));

Staking examples

const getEntriesByAddress = await this.zenon.embedded.stake.getEntriesByAddress(addressObject, 0, rpcMaxPageSize);
console.log("stake.getEntriesByAddress", getEntriesByAddress);

const getUncollectedReward = await this.zenon.embedded.stake.getUncollectedReward(addressObject);
console.log("stake.getUncollectedReward", getUncollectedReward);

const getFrontierRewardByPage = await this.zenon.embedded.stake.getFrontierRewardByPage(addressObject, 0, rpcMaxPageSize);
console.log("stake.getFrontierRewardByPage", getFrontierRewardByPage);

Common issues when installing package to your project

1. Having issues with "crypto" or "stream" modules because of incompatibilities between server(node) and browser?

https://stackoverflow.com/questions/52530289/module-not-found-error-cant-resolve-crypto-in-opt-lampp-htdocs-angular-te

2. Having issues with argon2 and webpack?

https://github.com/antelle/argon2-browser/issues/26 https://github.com/antelle/argon2-browser/blob/master/examples/webpack/webpack.config.js More specific: https://github.com/antelle/argon2-browser/issues/26#issuecomment-525700240

3. Potential problem: Error: /lib/src/wallet/manager.js 29:21 Module parse failed: Unexpected token (29:21) File was processed with these loaders: ./node_modules/@angular-devkit/build-angular/src/babel/webpack-loader.js ./node_modules/@ngtools/webpack/src/ivy/index.js ./node_modules/source-map-loader/dist/cjs.js You may need an additional loader to handle the result of these loaders.

Angular Solution: Info here: https://github.com/angular/angular-cli/issues/20471

3.1. Go to angular.json 3.2. Use the custom-webpack files from webpack-builders and add them in the root folder 3.4. Install angular-builders/custom-webpack

npm i -D @angular-builders/custom-webpack
npm i -D base64-loader

3.5. Replace current builder from angular.json like following

"projects":
  {"project-name":{
    architect:{
      build:{          
      "builder": "@angular-builders/custom-webpack:browser",
      "options": {
        "customWebpackConfig": {
          "path": "./custom-webpack.config.ts"
        },
      [...] 
      }
    }
  }
}

3.6. Add webpack

npm i webpack@5

4. Potential error: Error: Module not found: Error: Can't resolve 'fs' in 'D:\Projects\zenon\ts-sdk-1\examples\dist\node_modules\argon2-browser\dist'

Solution: Add this to package.json

"browser": {
  "fs": false
}

5. Potential error: Uncaught ReferenceError: Buffer is not defined at Function.parse (main.js:1:384593)

Solution steps: 5.1

npm i buffer

5.2 Add this to the bottom of polyfill.ts

(window as any).global = window;
global.Buffer = global.Buffer || require('buffer').Buffer;
(window as any).process = {
  version: ''
};

6. Potential error: main.js:1 Uncaught TypeError: Cannot convert a BigInt value to a number

Solution:

Upgrade tsconfig.json to use 
"target": "es2020",
"module": "es2020"

7. Potentialerror Uncaught EvalError: Refused to evaluate a string as JavaScript because 'unsafe-eval' is not an allowed source of script in the following Content Security Policy directive: "script-src 'self' 'wasm-eval'".

Solution: https://stackoverflow.com/questions/48047150/chrome-extension-compiled-by-webpack-throws-unsafe-eval-error

Add
devtool: 'cheap-module-source-map',
to the root of your webpack.config.js

Internal issues

1. Error: Error decrypting TypeError: Cannot read properties of undefined (reading 'call') at KeyStoreManager.readKeyStore (manager.js:71:1)

Solution: modifying cipher-base package in index.js Replace var Transform = require('stream').Transform with

var Transform = require('readable-stream').Transform // replacing instead of "stream"