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docs: forester: update README #1488

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110 changes: 80 additions & 30 deletions forester/README.md
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# Light Forester
# Forester

## Description

Forester is a service for nullifying the state and address merkle trees.
Forester is a service for nullifying the state and address merkle trees.
It subscribes to the nullifier queue and nullifies merkle tree leaves.

## Configuration
## Commands

Forester requires a configuration file, `forester.toml`, specifying necessary keys:
The Forester service can be controlled using the following syntax:

- `STATE_MERKLE_TREE_PUBKEY`: Address of the State Merkle tree.
- `NULLIFIER_QUEUE_PUBKEY`: Address of the State Nullifier queue.
- `ADDRESS_MERKLE_TREE_PUBKEY`: Address of the Address Merkle tree.
- `ADDRESS_MERKLE_TREE_QUEUE_PUBKEY`: Address of the Address queue.
- `REGISTRY_PUBKEY`: Address of the Registry program.
```bash
forester <COMMAND>
```

To setup your environment properly, copy `.env.example` to `.env`
and update the `FORESTER_PAYER` field with your appropriate key.
Available commands:

Alternatively, if you prefer to use a terminal profile file,
add the key to your `~/.zshrc` (zsh) or `~/.bashrc` (bash)
by including this line: `export FORESTER_PAYER=your_value_here`.
Substitute `your_value_here` with your actual key.
- `start` - Start the Forester service
- `status` - Check the status of various components
- `help` - Print help information for commands

Remember to restart your terminal or source your terminal profile for the changes to take effect.
## Starting the Service

## Usage
To start Forester, use:

1. Run the service:
To subscribe to nullify the state merkle tree, use the following command:
`cargo run -- subscribe`
2. To manually nullify state merkle tree leaves, use the following command:
`cargo run -- nullify-state`
3. To manually nullify address merkle tree leaves, use the following command:
`cargo run -- nullify-addresses`
4. To manually nullify state _and_ address merkle tree leaves, use the following command:
`cargo run -- nullify`
```bash
forester start [OPTIONS]
```

## TODO
### Configuration Options

1. Add indexer URL to the configuration file.
2. Add address merkle tree support.
3. Add multiple merkle trees support.
The start command supports the following configuration options, which can be set via command-line arguments or environment variables:

#### Required Options:

- `--rpc-url` - RPC URL [env: FORESTER_RPC_URL]
- `--ws-rpc-url` - WebSocket RPC URL [env: FORESTER_WS_RPC_URL]
- `--indexer-url` - Indexer URL [env: FORESTER_INDEXER_URL]
- `--prover-url` - Prover URL [env: FORESTER_PROVER_URL]
- `--payer` - Payer configuration [env: FORESTER_PAYER]
- `--derivation` - Derivation public key [env: FORESTER_DERIVATION_PUBKEY]

#### Optional Settings:

- `--push-gateway-url` - Monitoring gateway URL [env: FORESTER_PUSH_GATEWAY_URL]
- `--pagerduty-routing-key` - PagerDuty integration key [env: FORESTER_PAGERDUTY_ROUTING_KEY]
- `--photon-api-key` - Photon API key [env: FORESTER_PHOTON_API_KEY]

#### Performance Tuning:

- `--indexer-batch-size` - Size of indexer batches [default: 50]
- `--indexer-max-concurrent-batches` - Maximum concurrent indexer batches [default: 10]
- `--transaction-batch-size` - Size of transaction batches [default: 1]
- `--transaction-max-concurrent-batches` - Maximum concurrent transaction batches [default: 20]
- `--cu-limit` - Compute unit limit [default: 1000000]
- `--rpc-pool-size` - RPC connection pool size [default: 20]

#### Timing Configuration:

- `--slot-update-interval-seconds` - Interval for slot updates [default: 10]
- `--tree-discovery-interval-seconds` - Interval for tree discovery [default: 5]
- `--retry-delay` - Delay between retries in milliseconds [default: 1000]
- `--retry-timeout` - Timeout for retries in milliseconds [default: 30000]

#### Queue Configuration:

- `--state-queue-start-index` - Starting index for state queue [default: 0]
- `--state-queue-processing-length` - Processing length for state queue [default: 28807]
- `--address-queue-start-index` - Starting index for address queue [default: 0]
- `--address-queue-processing-length` - Processing length for address queue [default: 28807]

## Checking Status

To check the status of Forester:

```bash
forester status [OPTIONS] --rpc-url <RPC_URL>
```

### Status Options:

- `--full` - Run comprehensive status checks including compressed token program tests
- `--protocol-config` - Check protocol configuration
- `--queue` - Check queue status
- `--push-gateway-url` - Monitoring push gateway URL [env: FORESTER_PUSH_GATEWAY_URL]
- `--pagerduty-routing-key` - PagerDuty integration key [env: FORESTER_PAGERDUTY_ROUTING_KEY]

## Environment Variables

All configuration options can be set using environment variables with the `FORESTER_` prefix. For example:

```bash
export FORESTER_RPC_URL="your-rpc-url-here"
```
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