mathwallet.md

Math Wallet

Installation

The completed code can be found here.

Download Math Wallet from here. Follow the instructions and setup your wallet.

For setting up your own project just replace the code in userWallet.js in One Wallet guide with the following:

const { fromBech32 } = require('@harmony-js/crypto');
const defaults = {};

export class MathWallet {

	constructor(network, client) {
		console.log(network, client);
		this.isMathWallet = false;
	}

	 signIn() {
		if (!this.mathwallet) {
			this.initWallet();
		}

		this.mathwallet.getAccount().then((account) => {
			this.sessionType = `mathwallet`;
			this.address = account.address;
			this.isAuthorized = true;
			return Promise.resolve();
		});
	}

	 initWallet() {
		this.isMathWallet = window.harmony && window.harmony.isMathWallet;
		this.mathwallet = window.harmony;
		this.signIn();
	}

	 async signTransaction(txn) {
		console.log(this.isMathWallet);
		if (this.sessionType === 'mathwallet' && this.isMathWallet) {
			console.log(this.mathwallet);
			return this.mathwallet.signTransaction(txn);
		}
	}

	 attachToContract(contract) {
		contract.wallet.createAccount();

		if (contract.wallet.defaultSigner === '') {
			contract.wallet.defaultSigner = this.address;
		}

		contract.wallet.signTransaction = async (tx) => {
			try {
				tx.from = this.address;
				const signTx = await this.signTransaction(tx);
				console.log(signTx);
				return signTx;
			} catch (err) {
				if (err.type === 'locked') {
					alert(
						'Your MathWallet is locked! Please unlock it and try again!'
					);
					return Promise.reject();
				} else if (err.type === 'networkError') {
					await this.signIn();
					this.initWallet();

					try {
						tx.from = this.address;
						const signTx = await this.signTransaction(tx);
						return signTx;
					} catch (error) {
						return Promise.reject(error);
					}
				} else {
					alert(
						'An error occurred - please check that you have MathWallet installed and that it is properly configured!'
					);
					return Promise.reject();
				}
			}
		};

		return contract;
	}
}