duartefdias

// Process signed message
router.post('/:user/signature', (req, res) => {
    // Get user from db
    db.get('SELECT * FROM users WHERE address = ?', [req.params.user], (err, row) => {
        if (err) {
            console.error(err.message);
            return res.status(500).send(err.message);
        }
        if (row) {
            const msg = `Nonce: ${row.nonce}`;

duartefdias

function checkIfWalletConnected() {
    if (window.ethereum.request({ method: 'eth_accounts' }).then(function (accounts) {
        if (accounts.length > 0) {
            connected = true;
            buyerAddress = accounts[0];
        } else {
            connected = false;
        }
    })
    ) {

duartefdias

function connectWallet() {
    if (window.ethereum) {
        console.log('MetaMask is installed');
        window.web3 = new Web3(window.ethereum);
        window.ethereum.send('eth_requestAccounts').then(function() {
            // Get account address
            window.ethereum.request({ method: 'eth_accounts' })
            .then(function(accounts) {
                if (accounts.length > 0) {
                    buyerAddress = accounts[0];

duartefdias

function makePaymentRequest(buyerAddress, sellerAddress, itemPriceInWei) {
    // Start wallet payment process
    window.ethereum.request({ method: 'eth_sendTransaction', params: [{ from: buyerAddress, to: sellerAddress, value: itemPriceInWei }] })
    .then(response => {
        console.log(response);
        return true;
    })
    .catch(error => {
        console.log(error);
        return false;

duartefdias

<template>
    <div class="m-4 max-w-lg rounded overflow-hidden shadow-lg bg-white">
        <div class="p-4 max-w-xl" v-if="!connected" :key="updateModal">
            <h2 class="text-xl pb-9">Select one of the bellow options to perform a cryptocurrency transation via the ethereum test network.</h2>
            <div class="flex space-x-4">
                <button @click="checkWalletConnected" class="py-2 px-8 rounded button-custom flex"><img src="@/assets/logos/metamask-logo.png" class="w-6 mr-3" alt=""> Metamask</button>
                <button class="py-2 px-8 rounded button-custom disabled-custom flex"><img src="@/assets/logos/coinbase-logo.svg" class="w-6 mr-3" alt=""> Coinbase wallet</button>
            </div>
        </div>

duartefdias

import openpyxl
import csv

def excel_to_csv_with_formulas(excel_path, csv_path, sheet_index=None):
    """
    Convert Excel file to CSV, preserving formulas.
    Args:
        excel_path: Path to input Excel file
        csv_path: Path to output CSV file
        sheet_index: Optional index of specific sheet to convert (0-based).