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ark/README.md
2024-04-30 17:45:37 -05:00

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# Ark
![noah desiging the ark to scale Bitcoin](https://github.com/ark-network/ark/assets/3596602/5f51dde8-33d3-404f-bacf-6975131c9509)
Welcome to the Ark monorepo.
In this repository you can find:
- [`server`](./server/) always-on daemon that serves as the Ark Service Provider (ASP)
- [`client`](./client/) single-key wallet as command-line interface (CLI) to interact with the ASP
Refer to the README in each directory for more information about development.
## Roadmap
- [ ] Progressive Web App (PWA) as client and Ark wallet.
- [ ] Support Bitcoin with pre-signed transactions
- [ ] Support Ark out-of-round payments
- [ ] Add protected admin RPCs for `arkd` to manage rounds and treasury
- [ ] Add `postgres` as database option for `arkd`
## Build and Run with Docker
Run locally with Docker on Liquid Testnet. It uses `docker-compose` to build the `arkd` docker image from `server` and run the it as container, together with the `oceand` container.
### Prerequisites
- [Go](https://go.dev/doc/install)
- [Docker](https://docs.docker.com/engine/install/)
### Setup the Ocean wallet
Start `oceand` in Liquid Testnet:
```bash
docker compose up -d oceand
```
Setup `oceand`:
```bash
alias ocean='docker exec oceand ocean'
ocean config init --no-tls
ocean wallet create --password <password>
ocean wallet unlock --password <password>
```
### Run arkd connected to Ocean
Build from source `./server` and start the ASP:
```bash
docker compose up -d arkd
```
**Note:** On startup `arkd` will create an account `ark` on oceand.
Get an address from Ocean to add funds to the ASP:
```bash
ocean account derive --account-name ark
```
Fund the resulting address with [Liquid testnet faucet](https://liquidtestnet.com/faucet).
### Ark client
Inside the `arkd` container is shipped the `ark` CLI. You can submit payment to the ASP using the `ark` CLI.
```bash
alias ark='docker exec arkd ark'
ark init --password <password> --ark-url localhost:6000
```
This will add a `state.json` file to the following directory:
- POSIX (Linux/BSD): ~/.Ark-cli
- Mac OS: $HOME/Library/Application Support/Ark-cli
- Windows: %LOCALAPPDATA%\Ark-cli
- Plan 9: $home/Ark-cli
**Note:** you can use a different datadir by exporting the env var `ARK_WALLET_DATADIR` like:
```bash
export ARK_WALLET_DATADIR=path/to/custom
ark init --password <password> --ark-url localhost:6000
```
Add funds to the ark wallet:
```bash
ark receive
{
"offchain_address": <address starting with "tark1q...">,
"onchain_address": <address starting with "tex1q...">
}
```
Fund the `onchain_address` with https://liquidtestnet.com/faucet.
Onboard the ark:
```bash
ark onboard --amount 21000
```
After confirmation, ark wallet will be funded and ready to spend offchain.
In **another tab**, setup another ark wallet with:
```bash
export ARK_WALLET_DATADIR=./datadir
alias ark2=$(pwd)/build/ark-<os>-<arch>
ark2 init --password <password> --ark-url localhost:6000
```
**Note:** `ark2` should always run in the second tab.
### Make payments
You can now make ark payments between the 2 ark wallets:
```bash
ark2 receive
{
"offchain_address": <address starting with "tark1q...">,
"onchain_address": <address starting with "tex1q...">,
"relays": ["localhost:6000"]
}
```
```bash
ark send --to <ark2 offchain address> --amount 2100
```
Both balances should reflect the payment:
```bash
ark balance
{
"offchain_balance": 18900,
"onchain_balance": 0
}
```
```bash
ark2 balance
{
"offchain_balance": 2100,
"onchain_balance": 0
}
```
### Exiting
User `ark` can leave the ark collaboratively (i.e. ASP needs to collaborate):
```bash
ark redeem --address <onchain_address> --amount 12100
```
In the case of the ASP is not responding, you can leave the ark unilaterally (`--amount` is not necessary since `--force` will redeem all funds):
```bash
ark redeem --force
```
### Help
You can see all available commands with `help`:
```bash
ark help
```