Smart Contracts
Consensus
Use Cases
Troubleshooting
For Miners
Zen.js
Zen.JS is the library for interacting with the Zen Protocol node via JavaScript.
Zen.js is helps in:
- Generate Mnemonic phrase
- Secure Mnemonic phrase
- Serialise and deserialise Consensus types
- Sign transactions
- Defining the contract message body
- Create a wallet instance to interact with the blockchain
- Encode and decode extendend keys to address
zenprotocol / zen.js
GitLab
Install
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npm config set @zen:registry https://www.myget.org/F/zenprotocol/npm/
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npm install --save @zen/zenjs
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Generating mnemonic phrase, keys and accepting payments
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import {Mnemonic, ExtendedKey} from '@zen/zenjs'
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const mnemonic = Mnemonic.generateMnemonic(24);
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const extendedKey = ExtendedKey.fromMnemonic(mnemonic);
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const privateKey = extendedKey.derivePath("m/44'/258'/0'/0/0").getPrivateKey();
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const publicKey = extendedKey.getPublicKey();
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console.log(publicKey.toAddress('main'));
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Creating and signing transactions
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import {TransactionBuilder,ExtendedKey} from '@zen/zenjs'
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import {post} from 'axios'
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​
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const mnemonic = 'one one one one one one one one one one one one one one one one one one one one one one one one';
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const privateKey = ExtendedKey.fromMnemonic(mnemonic).derivePath("m/44'/258'/0'/0/0").getPrivateKey();
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const tb = new TransactionBuilder('test');
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tb.addInput('0000000000000000000000000000000000000000000000000000000000000000',0, privateKey);
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tb.addOutput('tp1qfyplhxql09lvvg53dxg7t77tkkxhsp3l6q8xjjpj85hvqlw0ttqswjdapx', 100, '00');
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const tx = tb.sign();
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console.log(tx.hash(), tx.toJson());
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const hex = tx.toHex();// Transaction is ready to be published
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post('http://127.0.0.1/:31567/blockchain/publishpublishtransaction',hex,{ headers: { 'Content-Type': 'application/json' }});
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Wallet functionalities
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export class Wallet {
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constructor(extendedKey: ExtendedKey, actions: WalletActions, index?: number);
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static fromMnemonic(key: string, actions: WalletActions): Wallet;
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getExternalPublicKey(): PublicKey;
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getExternalPublicKeyHash(): Hash;
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getExternalAddress(): string;
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connectWallet();
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getActiveContracts(): Promise<ActiveContracts[]>;
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getBalance(addresses?: string[]): Promise<{}>;
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submitRepoVote(repoVotingContract: string, commitID: string, phase: "Contestant" | "Candidate", currentInterval: number, privates: PrivateKey[], publish?: boolean): Promise<string>;
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submitCGPBallot(cgpVotingContract: string, command: string, ballotData: Payout | Allocation, isNomination: boolean, currentInterval: number, privates: PrivateKey[], publish?: boolean): Promise<string>;
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signMessage(msg: Buffer, path: string, privates: PrivateKey[]): Signature;
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getAddress(path: string): string;
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getTransactions(skip?: number, take?: number): Promise<Transactions>;
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getTransactionCount(): Promise<number>;
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send(outputs: Array<SpendType>, privates: PrivateKey[], publish?: boolean): Promise<string>;
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sendRaw(outputs: Array<SpendType>): Promise<RawTransaction>;
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executeContract({ address, contractData, privates, publish }?: any): Promise<string>;
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extendContract({ contractId, numberOfBlocks, privates, publish }?: any): Promise<string>;
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activateContract({ code, limit, numberOfBlocks, privates, publish }?: any): Promise<string>;
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signTransaction(unspentTx: Transaction | string, privateKeys: PrivateKey[]): Promise<string>;
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signContractExecution(unspentTx: Transaction | string, sign: string | undefined, privateKeys: PrivateKey[]): Promise<string>;
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collectRaw(requiredAmounts: {[s: string]: string;}, addresses?: string[]);
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}
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Last modified 10mo ago