Thabo David Klass

<p>Online payments have been one of the major applications of the web since the rise of usage of the internet by the general public in the early 1990s – earlier implementations were naturally a lot cruder. Later on, superior payment systems like PayPal and Stripe came along and offered developers ways to facilitate payments.</p>
<p>Another huge wave followed after that – cryptocurrency. Many people had been trying to create popular digital currencies for years – most notably was Nick Szabo with his early efforts in the 1990s. In 2009, blockchain-based currencies were create and later Ethereum, which comes out of the box with smart contracts, was created. Not only is the Ethereum platform advanced, it is also versatile in that it comes with Web3 that can be injected into a web application’s instance to facilitate Ethereum transactions.</p>
<p>Javascript has become a mature language that is capable of doing things that had long been ascribed to compiled programming languages – this maturity has given leeway to create better products.</p>
<p>WordPress is now running on 30% of all websites – in a way, it has become a kind of web operating system. This means that it has become unavoidable and thinking about creating new products and dedicated implementations of existing products for WordPress is imperative.</p>
<p>The combination of better payments technology, cryptocurrencies, mature Javascript and a web dominated by a very powerful WordPress was fertile soil to create Spreebie Bartner – a completely new paradigm in online payment.</p>
<p>This plugin requires Metamask to work.</p>
<p>THIRD PARTY SERVICE NOTE: When making donations to the author of this plugin, a third party service called Firebase (https://firebase.google.com/) is used to store donator names and emails. A donator can choose to donate anonymously so that their name and email are not stored. This third party service on this plugin ONLY works with donations to the author – the rest of the plugin functions without it.</p>
<p>Another third party service used is CoinMarketCap (https://api.coinmarketcap.com) – this is used to get Ethereum price information for different currencies. There is no storage that happens with this service.</p>


Spreebie Barter – Ethereum Payments and Donations

The SPREEBIE BARTER plugin is a widget that enables easy and fast Ethereum payments on any WordPress website via Metamask.

Freemius

ethereumicoio

lynn999

<p>The EthPress Web3 Login WordPress Plugin adds a capability to connect with cryptocurrency wallets such as <a href="https://metamask.io" rel="nofollow ugc">MetaMask</a> for Ethereum, Binance Smart Chain (BSC), Polygon (MATIC) or any other EVM-compatible blockchain, and wallets that support <a href="https://walletconnect.com/" rel="nofollow ugc">WalletConnect</a> QR code. Adds a button to WordPress login screen that will let users securely log in with their crypto wallet.</p>
<p><iframe loading="lazy" title="EthPress Web3 Login WordPress Plugin Login Flow" width="750" height="563" src="https://www.youtube.com/embed/0a8lWF6uHPA?feature=oembed" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe></p>
<p>Add the capability to log in with cryptocurrency wallets such as <a href="https://metamask.io" rel="nofollow ugc">MetaMask</a> for Ethereum, and wallets that support WalletConnect QR code. Adds a button to WordPress login screen that will let users securely log in with their crypto wallet.</p>
<p>In the background, a regular WordPress user account is created, so existing plugins and customizations will have no problem working along.</p>
<blockquote>
<p>The <a href="https://ethereumico.io/product/nft-authentication-nft-access-control-wordpress-plugin/" rel="nofollow ugc">EthPress NFT Access Add-On</a> can be used to control access for <a href="https://woocommerce.com/?aff=12943&cid=17113767" rel="nofollow ugc">WooCommerce</a> products, simple pages and posts.</p>
</blockquote>
<h3>Features</h3>
<ul>
<li>A web3 login button is added to your login screen automatically</li>
<li>Use the EthPress widget for maximum ease</li>
<li>A shortcode [ethpress_login_button] can be used to display the Login button anywhere</li>
<li>A shortcode [ethpress_link_button] can be used to display the Link accounts button anywhere. The new account linked address will be put in all HTML elements with the <code>ethpress-address-changed</code> class present.</li>
<li>Local signature verification. To verify signatures locally with JavaScript, see this <a href="https://gitlab.com/losnappas/verify-eth-signature" rel="nofollow ugc">guide</a> please.</li>
</ul>
<h3>Features PRO</h3>
<blockquote>
<p>The <a href="https://ethereumico.io/product/web3-login-wordpress-ethpress-plugin/" rel="nofollow ugc">EthPress PRO</a> version is required to use these features. <a href="https://checkout.freemius.com/mode/dialog/plugin/9248/plan/15558/?trial=paid" rel="nofollow ugc">Free 7 days Trial</a> is available!</p>
</blockquote>
<ul>
<li>Managed Verification Service. </li>
<li>EthPress login button on a <a href="https://woocommerce.com/?aff=12943&cid=17113767" rel="nofollow ugc">WooCommerce</a> Login, Register and Checkout Forms.</li>
<li>The [ethpress_account] short code can be used to display the current user’s address logged with.</li>
<li>Buttons labels text can be changed in plugin settings</li>
<li>WooCommerce Account Details show Link Wallet button setting</li>
<li>The <code>Redirect URL</code> setting can be used to set an URL of a page to redirect after a successful login</li>
<li>The <code>login_button_label</code> attribute can be used to change the label for the login button displayed with a <code>[ethpress_login_button]</code> shortcode</li>
</ul>
<blockquote>
<p>The <a href="https://ethereumico.io/product/nft-wordpress-plugin/" rel="nofollow ugc">NFT</a> Token based access control for the <a href="https://woocommerce.com/?aff=12943&cid=17113767" rel="nofollow ugc">WooCommerce</a> products, simple pages and posts can be done with the <a href="https://ethereumico.io/product/nft-authentication-nft-access-control-wordpress-plugin/" rel="nofollow ugc">EthPress NFT Access Add-On</a>. <a href="https://checkout.freemius.com/mode/dialog/plugin/10731/plan/18172/?trial=paid" rel="nofollow ugc">Free 7 days Trial</a> is available!</p>
</blockquote>
<h4>Integrations</h4>
<ul>
<li>The <a href="https://wordpress.org/plugins/ultimate-member/" rel="ugc">Ultimate Member</a> plugin is supported</li>
</ul>
<h3>EthPress NFT Access Add-On Features</h3>
<p>Check user NFT authentication control (non-fungible token, erc-721 and erc-1155) ownership.<br />
The <a href="https://ethereumico.io/product/nft-authentication-nft-access-control-wordpress-plugin/" rel="nofollow ugc">EthPress NFT Access Add-On</a> is perfect for blocking users access to a Page, a Post and a <a href="https://woocommerce.com/?aff=12943&cid=17113767" rel="nofollow ugc">WooCommerce</a> Product page, if they don’t own a certain NFT token.</p>
<blockquote>
<p>Free 7 days <a href="https://checkout.freemius.com/mode/dialog/plugin/10731/plan/18172/?trial=paid" rel="nofollow ugc">Trial</a> is available</p>
</blockquote>
<ul>
<li>Site wide NFT verification requirement to register or login</li>
<li>Restrict access to a <code>Page</code> to some NFT token owners only</li>
<li>Restrict access to a <code>Post</code> to some NFT token owners only</li>
<li>Restrict access to a <a href="https://woocommerce.com/?aff=12943&cid=17113767" rel="nofollow ugc">WooCommerce</a> <code>Product</code> to some NFT token owners only</li>
<li>Shortcode to display your access level: [ethpress_nft_access_addon_nft product_id=”1337″]</li>
<li><code>ERC721</code> and <code>ERC1155</code> non-fungible token standards are supported</li>
</ul>
<h4>Integrations</h4>
<ul>
<li><a href="https://wordpress.org/plugins/learnpress/" rel="ugc">LearnPress LMS</a> courses access can be granted with NFT token</li>
<li><a href="https://wordpress.org/plugins/tutor/" rel="ugc">Tutor LMS</a> courses access can be granted with NFT token</li>
<li><a href="https://wordpress.org/plugins/ethereum-wallet/" rel="ugc">Ethereum Wallet</a> plugin generated accounts are also tested</li>
<li>
<p>The <code>ethpress_nft_access_get_user_accounts</code> filter can be used to add wallets for testing:</p>
<pre><code>add_filter('ethpress_nft_access_get_user_accounts', function($accounts) {
    $more_accounts = get_more_accounts();
    return array_merge($accounts, $more_accounts);
});
</code></pre>
</li>
</ul>
<h3>Disclaimer</h3>
<p><strong>By using this free plugin you accept all responsibility for handling the account balances for all your users.</strong></p>
<p>Under no circumstances is <strong>ethereumico.io</strong> or any of its affiliates responsible for any damages incurred by the use of this plugin.</p>
<p>Every effort has been made to harden the security of this plugin, but its safe operation depends on your site being secure overall. You, the site administrator, must take all necessary precautions to secure your WordPress installation before you connect it to any live wallets.</p>
<p>You are strongly advised to take the following actions (at a minimum):</p>
<ul>
<li><a href="https://en.bitcoin.it/wiki/Cold_storage" rel="nofollow ugc">Educate yourself about cold and hot cryptocurrency storage</a></li>
<li>Obtain hardware wallet to store your coins</li>
<li><a href="https://codex.wordpress.org/Hardening_WordPress" rel="nofollow ugc">Educate yourself about hardening WordPress security</a></li>
<li><a href="https://jetpack.com/pricing/?aff=9181&cid=886903" rel="nofollow ugc">Install a security plugin such as Jetpack</a> or any other security plugin</li>
<li><strong>Enable SSL on your site</strong> if you have not already done so.</li>
</ul>
<blockquote>
<p>By continuing to use the EthPress plugin, you indicate that you have understood and agreed to this disclaimer.</p>
</blockquote>
<h3>Hooks</h3>
<p>These hooks can be used to add your custom logic after user logged in or linked an account using the EthPress plugin functionality.</p>
<p>The <code>login_redirect</code> hook is a <a href="https://developer.wordpress.org/reference/hooks/login_redirect/" rel="nofollow ugc">standard WordPress hook</a> you can use to customize the page user should be redirected after login.</p>
<blockquote>
<p>The <a href="https://ethereumico.io/product/web3-login-wordpress-ethpress-plugin/" rel="nofollow ugc">EthPress PRO</a> version has a feature to configure it on the plugin settings page. <a href="https://checkout.freemius.com/mode/dialog/plugin/9248/plan/15558/?trial=paid" rel="nofollow ugc">Free 7 days Trial</a> is available!</p>
</blockquote>
<pre><code>/**
 * Fires after every login attempt.
 *
 * @param WP_User|WP_Error $user WP_User on success, WP_Error on failure.
 * @param (string|false) $provider One of 'metamask', 'walletconnect', false.
 */
do_action( 'ethpress_login', $user, $provider );

/**
 * Fires after every user account linking success.
 *
 * @param WP_User|WP_Error $user WP_User on success, WP_Error on failure.
 * @param (string|false) $provider One of 'metamask', 'walletconnect', false.
 */
do_action( 'ethpress_linked', $user, $provider );

/**
 * Filters the login redirect URL.
 *
 * @param string           $redirect_to           The redirect destination URL.
 * @param string           $requested_redirect_to The requested redirect destination URL passed as a parameter.
 * @param WP_User|WP_Error $user                  WP_User object if login was successful, WP_Error object otherwise.
 */
$redirect_to = apply_filters( 'login_redirect', $redirect_to, $requested_redirect_to, $user );

/**
 * For additional checks in addons
 *
 * @since 1.6.0
 *
 * @param \losnappas\Ethpress\Address $address.
 * @return \losnappas\Ethpress\Address|\WP_Error Return \WP_Error if address doesn't fulfill some condition.
 */
$address = apply_filters('ethpress_login_address', $address);

/**
 * For additional checks in addons
 *
 * @since 1.6.0
 *
 * @param string           $redirect_to           The redirect destination URL.
 * @param string           $requested_redirect_to The requested redirect destination URL passed as a parameter.
 * @param WP_User|WP_Error $user                  WP_User object if login was successful, WP_Error object otherwise.
 */
$redirect_to = apply_filters('ethpress_login_redirect', $redirect_to, $requested_redirect_to, $user);
</code></pre>


EthPress – Web3 Login

EthPress Web3 Login Wordpress Plugin adds the capability to connect with cryptocurrency wallets such as MetaMask or WalletConnect QR code.

Spreebie Barter – Ethereum Payments and Donations vs EthPress – Web3 Login