Ethereum: Auto load all wallets when start up

Ethereum: Automate Wallet Refill on Startup for Convenience and Security

As Ethereum’s popularity continues to grow, managing multiple wallets has become a major challenge. One issue that can complicate things is when you restart your Bitcoin client or wallet software, such as
Bitcoin Core, which often reloads all existing wallets, including new ones.

In this article, we will explore an approach to automate loading all Ethereum wallets on startup using bitcoin-cli, making it easier and less error-prone during the initial boot process.

The Problem with Manual Wallet Refill

Before we dive into the solution, let’s briefly examine the current workflow:

• Restart your Bitcoin client or wallet software.

• Run bitcoin-cli listwallets to check which wallets are connected.

• If you create multiple new wallets during a reboot, reload all existing wallets using bitcoin-cli loadwallet .

As shown in your example: bitcoin-cli listwallets, all existing wallets will be included. However, when starting with Bitcoin Core or other wallet software, the process of reloading individual wallets is tedious and error-prone.

The Solution: Automate Wallet Reload Using bitcoin-cli

To solve this problem, we will leverage the power of bitcoin-cli. Specifically, the command line interface’s ability to load all connected wallets on startup can be leveraged in a clever way.

Here’s how you can modify your workflow:

• Identify Existing Wallets: Run bitcoin-cli listwallets again after a reboot or wallet software update.

• Get a list of new wallets

  

  : Use the same command to get a list of all connected wallets, but this time, look for an optional -w flag (with a space between - and the wallet name).

For example: bitcoin-cli -w --listwallets

This will output:

bitcoin-cli -w --listwallets
[
""
]

As you can see, all existing wallets are still listed. Since Bitcoin Core uses the same list of wallets to determine which ones should be loaded on startup, we can modify this command to load all connected wallets:

loadwallet command

The bitcoin-cli loadwallet command takes the name of a wallet as an argument, allowing us to specify which wallet(s) to load.

To automate the process, you will need to create a script that runs after every reboot or update of the wallet software. Here’s how to accomplish this using sh (short for shell scripting):

• Create a new file called .bitcoinrc in your home directory:

sudo nano ~/.bitcoinrc

• Add the following line to enable automatic loading of wallets on startup:

loadwallet -w "" --update

Here’s how it works:

• -w "": Specifies the name of the wallet to load.

• --update: Allows updating all connected wallets on reboot.

• Save and close the file, then make the script executable by running:

chmod +x ~/.bitcoinrc

Now, when you launch Bitcoin Core or other wallet software, it will automatically reload all existing wallets on startup using the modified loadwallet command:

Example use case:

After upgrading to a new version of Bitcoin Core, restart your client:

sudo bitcoin-core --restart

This should load all connected wallets from the previous session. There is no need to manually reload each wallet.

By leveraging bitcoin-cli, we have successfully created an automated workflow that minimizes errors and ensures consistency across different operating systems when starting with multiple Ethereum wallets on a new installation or upgrade.

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