# Stacking Sats on Kraken

First off: Here's to you, [Bittr](https://getbittr.com/) – you will be missed! 😢

This script is not a full replacement for the incredible service Bittr offered, but it's a start:
Automate your Stacking Sats process by regularly placing buy orders using the [Kraken API](https://www.kraken.com/features/api).

## ✋ Caveat

You need to install the dependency [kraken-api](https://github.com/nothingisdead/npm-kraken-api), which is a third-party package.
It has a minimal set of dependencies and I've done my best to audit its code.
Also the version is fixed, so that unwanted changes do not slip in.

However: Use this at your own risk and decide for yourself whether or not you want to run this script and its dependencies!

## 🔑 API Key

Obtain your Kraken API Key via [the API settings page](https://www.kraken.com/u/settings/api).
Generate a new API key dedicated for stacking using the "Query Funds" and "Modify Orders" permissions:

![Kraken API Key Permissions](./api-permissions.png)

Only check the "Withdraw Funds" option if you plan to automatically withdraw Bitcoin from Kraken.
See details below.

## ⚡️ RaspiBlitz Integration

This script ships with the [RaspiBlitz](https://github.com/rootzoll/raspiblitz) (v1.6 and above).

You can enable it via the Console of your RaspiBlitz.
Leave the main menu via the last option "Console" and use the following commands:

```sh
# enable the script
./config.scripts/bonus.stacking-sats-kraken.sh on

# switch to the stackingsats user
sudo su - stackingsats

# edit your configuration (see "Setup" above)
nano /mnt/hdd/app-data/stacking-sats-kraken/.env

# follow the instructions from the first step to set up a cronjob
crontab -e
```

Here is an example for a daily cronjob at 6:15am ...

```sh
SHELL=/bin/bash
PATH=/bin:/usr/sbin:/usr/bin:/usr/local/bin
15 6 * * * /home/stackingsats/stacksats.sh > /dev/null 2>&1
```

**Note:** Do not run `npm` directly on the RaspiBlitz, like show in the examples below. Please use the `stacksats.sh` shell script instead, as this loads your configuration.

- - -

## 📦 Custom Setup

Prerequisite: At least the current LTS version of [Node.js](https://nodejs.org/).

Install the dependencies:

```sh
npm install
```

Setup the environment variables for the script:

```sh
# used to authenticate with Kraken
export KRAKEN_API_KEY="apiKeyFromTheKrakenSettings"
export KRAKEN_API_SECRET="privateKeyFromTheKrakenSettings"

# used for buying
export KRAKEN_API_FIAT="USD" # the governmental shitcoin you are selling
export KRAKEN_BUY_AMOUNT=21 # fiat amount you trade for the future of money

# used for withdrawal
export KRAKEN_MAX_REL_FEE=0.5 # maximum fee in % that you are willing to pay
export KRAKEN_WITHDRAW_KEY="descriptionOfWithdrawalAddress"

# remove this line after verifying everything works
export KRAKEN_DRY_RUN_PLACE_NO_ORDER=1
```

Use a dry run to test the script and see the output without placing an order:

```sh
npm run test:stack
```

You should see something like this sample output:

```text
💰 Balance: 210000.00 USD / 21.0 XBT

📈 Ask: 21000.2 USD
📉 Bid: 21000.1 USD

💸 Order: buy 0.21212121 XBTUSD @ limit 21000.1
📎 Transaction ID: 2121212121
```

## 🤑 Stack sats

When you are good to go, execute this command in a regular interval:

```sh
npm run stack
```

The best and easiest way is to wrap it all up in a shell script.
This script can be triggered via cron job, e.g. weekly, daily or hourly.

Here's a sample `stacksats.sh` script:

```sh
#!/bin/bash
set -e

export KRAKEN_API_KEY="apiKeyFromTheKrakenSettings"
export KRAKEN_API_SECRET="privateKeyFromTheKrakenSettings"
export KRAKEN_API_FIAT="USD"
export KRAKEN_BUY_AMOUNT=21
export KRAKEN_MAX_REL_FEE=0.5
export KRAKEN_WITHDRAW_KEY="descriptionOfWithdrawalAddress"
export KRAKEN_DRY_RUN_PLACE_NO_ORDER=1

# run script
cd $(cd `dirname $0` && pwd)
cmd=${1:-"stack"}

if [[ "${KRAKEN_DRY_RUN_PLACE_NO_ORDER}" ]]; then
  result=$(npm run test:$cmd --silent 2>&1)
else
  result=$(npm run $cmd --silent 2>&1)
fi
echo "$result"

# optional: send yourself an email
recipient="satstacker@example.org"
echo "Subject: Sats got stacked
From: satstacker@example.org
To: $recipient $result" | /usr/sbin/sendmail $recipient
```

Make it executable with `chmod +x stacksats.sh` and go wild.

[Stay humble!](https://twitter.com/matt_odell/status/1117222441867194374) 🙏

## 🔑 Withdrawal

Holding significant amounts on an exchange is never a good idea.
You should regularly take ownership of your coins by withdrawing to your own wallet.
This can either be done manually or it can be automated.
The script provided here will only withdraw to a previously defined Bitcoin address if the relative fees do not exceed a certain limit.

*It is optional to run the withdrawal script.*

### Example 1

- Max. relative fee: 0.5%
- Fixed Kraken fee: ₿ 0.00050
- Balance: ₿ 0.06000
➡️ No withdrawal since fee actual (0.83%) is too high

### Example 2

- Max. relative fee: 0.5%
- Fixed Kraken fee: ₿ 0.00050
- Balance: ₿ 0.12000
➡️ Withdrawal executed since actual fee (0.42%) is low enough

In case you plan to automatically withdraw from Kraken, a withdrawal method must first be defined.
If you already set up a methode you can reuse it.
Otherwise generate a new one by going to **Funding > Bitcoin (XBT) withdraw > Add address**.
The description field will later be used as an environment variable in the script.

To test the withdrawal of funds to your defined address run:

```sh
npm run test:withdraw
```

You should see something like this:

```text
💡  Relative fee of withdrawal amount: 5.57%
❌  Fee is too high – max rel. fee: 0.50%
```

It is recommended to run the withdrawal script every time you stacked sats:

```sh
npm run withdraw
```

Since it can take a couple seconds or minutes for your order to fill, you should run the following script a couple hours later after the stacking script.
Just set up a second cron job which executes the withdrawal script.

If you are using the aforementioned `stacksats.sh` script you can withdraw via this command:
`stacksats.sh withdraw`