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This section describes all Cryptocurrency WordPress Plugin for WooCommerce configuration settings.

Ethereum wallet address

The Ethereum address of your wallet from which you would sell Ether or ERC20 tokens.

Note that this wallet should be treated as a Hot Wallet! Do not store a lot of funds on this wallet. Typically, it is enough to have 0.2-0.4 ETH and not more then 5-10% of your ERC20 tokens on this wallet. You can buy Ether with service like coinbase.com

Configuration Settings: Cryptocurrency WordPress Plugin for WooCommerce

Ethereum wallet private key

The private key for the Ethereum wallet address from which you would sell Ether or ERC20 tokens. It is kept in a secret and never sent to the client side. That is why it would stay empty after you’ll have inputted and saved it. Do not worry, it is the right behavior. Even your freelancer site admin would not have access to this private key value.

Note that this wallet should be treated as a Hot Wallet! Do not store a lot of funds on this wallet. Typically, it is enough to have 0.2-0.4 ETH and not more then 5-10% of your ERC20 tokens on this wallet. You can buy Ether with service like coinbase.com

Configuration Settings: Cryptocurrency WordPress Plugin for WooCommerce

Disclaimer! By using this plugin you accept all responsibility for handling this hot wallet private key safety.

You are strongly advised to take the following actions (at a minimum):

Jetpack

Ledger Nano S - The secure hardware wallet

Trezor Wallet

Infura.io Api Key

The API key for the https://infura.io/. You need to register to obtain it.

Use this guide to register and generate the Infura.io Api Key: Get Infura.io Api Key

This API is used to communicate with the Ethereum blockchain.

Configuration Settings: Cryptocurrency WordPress Plugin for WooCommerce

Blockchain

The blockchain used: mainnet, ropsten or rinkeby. Use mainnet in production, and ropsten or rinkeby in test mode. See the full testing guide.

Configuration Settings: Cryptocurrency WordPress Plugin for WooCommerce

Gas Limit

It is the maximum amount of Gas to be used when sening tokens purchased by your clients. The default 200000 is a reasonable value for most of ERC20 tokens.

Increase this value if your ERC20 Token contract requires more Gas. It is the case if your transactions fail with Out of gas error.

Configuration Settings: Cryptocurrency WordPress Plugin for WooCommerce

Gas Price, Gwei

It is the maximum amount of Ether to pay for a 1 Gas unit in Gwei.

Gwei is a 1000000000 wei, or 1/1000000000 Ether

The Ethereum Gas price is auto adjusted according to the etherchain.org API.

The default value of 21 Gwei is reasonable in most cases.

This value would be used to form transactions.

Configuration Settings: Cryptocurrency WordPress Plugin for WooCommerce

Ethereum Wallet meta key

The meta key used in plugin like Ultimate Member for an Ethereum wallet address field in user registration form. See the KYC article for an example. It can be used here to pre-fill the Ethereum wallet field on the Checkout page.

The user_ethereum_wallet_address user meta key from the WordPress Ethereum Wallet plugin can be used here if you have it installed.

Configuration Settings: Cryptocurrency WordPress Plugin for WooCommerce

Disable Ethereum Wallet field?

If the Ethereum Wallet meta key value is used, you can disable the Ethereum wallet field on the Checkout page.

It prevents user to buy tokens to any other address except the registered one.

Configuration Settings: Cryptocurrency WordPress Plugin for WooCommerce

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