testnet-laconicd-stack/testnet-nitro-node.md

# testnet-nitro-node

## Prerequisites

* Local:

  * Clone the `cerc-io/testnet-ops` repository:

    ```bash
    git clone git@git.vdb.to:cerc-io/testnet-ops.git
    ```

  * Ansible: see [installation](https://git.vdb.to/cerc-io/testnet-ops#installation)

* On deployment machine:

  * laconic-so: see [installation](https://git.vdb.to/cerc-io/testnet-ops/src/branch/main/stack-orchestrator-setup/README.md#setup-stack-orchestrator)

## Setup

* Move to `nitro-nodes-setup` :

  ```bash
  cd testnet-ops/nitro-nodes-setup
  ```

* Fetch the required Nitro node config:

  ```bash
  wget -O nitro-vars.yml https://git.vdb.to/cerc-io/testnet-laconicd-stack/raw/branch/main/ops/stage2/nitro-node-config.yml
  ```

* Fetch required asset addresses:

  ```bash
  wget -O assets.json https://git.vdb.to/cerc-io/testnet-laconicd-stack/raw/branch/main/ops/stage2/assets.json
  ```

* Ask testnet operator to send L1 tokens to your chain address

  * [README for transferring tokens](./ops/nitro-token-ops.md)

* Check balance of your tokens once they are transferred:

  ```bash
  export GETH_CHAIN_ID="1212"
  export GETH_CHAIN_URL="https://fixturenet-eth.laconic.com"

  export ACCOUNT_ADDRESS=<account-address> #account address should be without "0x"
  export ASSET_ADDRESS_1=$(jq -r --arg chainId "$GETH_CHAIN_ID" '.[$chainId][0].contracts.TestToken.address' assets.json)
  export ASSET_ADDRESS_2=$(jq -r --arg chainId "$GETH_CHAIN_ID" '.[$chainId][0].contracts.TestToken2.address' assets.json)

  # Check balance of first asset address
  curl -X POST $GETH_CHAIN_URL \
   -H "Content-Type: application/json" \
   -d '{
     "jsonrpc":"2.0",
     "method":"eth_call",
     "params":[{
       "to": "'"$ASSET_ADDRESS_1"'",
       "data": "0x70a08231000000000000000000000000'"$ACCOUNT_ADDRESS"'"
     }, "latest"],
     "id":1
   }'

  # Check balance of second asset address
  curl -X POST $GETH_CHAIN_URL \
   -H "Content-Type: application/json" \
   -d '{
     "jsonrpc":"2.0",
     "method":"eth_call",
     "params":[{
       "to": "'"$ASSET_ADDRESS_2"'",
       "data": "0x70a08231000000000000000000000000'"$ACCOUNT_ADDRESS"'"
     }, "latest"],
     "id":1
   }'
  ```

* Edit `nitro-vars.yml` and add the following variables:

  ```bash
  # Private key for your Nitro account (same as the one used in stage0 onboarding)
  # Export the key from Laconic wallet (https://wallet.laconic.com)
  nitro_sc_pk: ""

  # Private key for a funded account on L1
  # This account should have L1 tokens for funding your Nitro channels
  nitro_chain_pk: ""

  # Multiaddr with publically accessible IP address / DNS for your L1 nitro node
  # Use port 3007
  # Example: "/ip4/192.168.x.y/tcp/3007"
  # Example: "/dns4/example.com/tcp/3007"
  nitro_l1_ext_multiaddr: ""

  # Multiaddr with publically accessible IP address / DNS for your L2 nitro node
  # Use port 3009
  # Example: "/ip4/192.168.x.y/tcp/3009"
  # Example: "/dns4/example.com/tcp/3009"
  nitro_l2_ext_multiaddr: ""
  ```

* Edit the `setup-vars.yml` to update the target directory:

  ```bash
  # Set absolute path to desired deployments directory (under your user)
  ...
  nitro_directory: <path-to-deployments-dir>
  ...

  # Will create deployments at <path-to-deployments-dir>/nitro-node/l1-nitro-deployment and <path-to-deployments-dir>/nitro-node/l2-nitro-deployment
  ```

## Run Nitro Nodes

Nitro nodes can be run using Ansible either locally or on a remote machine; follow corresponding steps for your setup

### On Local Host

* Setup and run a Nitro node (L1+L2) by executing the `run-nitro-nodes.yml` Ansible playbook:

  ```bash
  LANG=en_US.utf8 ansible-playbook -i localhost, --connection=local run-nitro-nodes.yml --extra-vars='{ "target_host": "localhost"}' --user $USER
  ```

### On Remote Host

* In `testnet-ops/nitro-nodes-setup`, create a new `hosts.ini` file:

   ```bash
   cp ../hosts.example.ini hosts.ini
   ```

* Edit the [`hosts.ini`](./hosts.ini) file to run the playbook on a remote machine:

  ```ini
  [<deployment_host>]
  <host_name> ansible_host=<target_ip> ansible_user=<ssh_user> ansible_ssh_common_args='-o ForwardAgent=yes'
  ```

  * Replace `<deployment_host>` with `nitro_host`
  * Replace `<host_name>` with the alias of your choice
  * Replace `<target_ip>` with the IP address or hostname of the target machine
  * Replace `<ssh_user>` with the SSH username (e.g., dev, ubuntu)

* Verify that you are able to connect to the host using the following command

  ```bash
  ansible all -m ping -i hosts.ini -k

  # If using password based authentication, enter the ssh password on prompt; otherwise, leave it blank

  # Expected output:

  # <host_name> | SUCCESS => {
  #  "ansible_facts": {
  #      "discovered_interpreter_python": "/usr/bin/python3.10"
  #  },
  #  "changed": false,
  #  "ping": "pong"
  # }
  ```

* Execute the `run-nitro-nodes.yml` Ansible playbook for remote deployment:

  ```bash
  LANG=en_US.utf8 ansible-playbook -i hosts.ini run-nitro-nodes.yml --extra-vars='{ "target_host": "nitro_host"}' --user $USER -kK

  # If using password based authentication, enter the ssh password on prompt; otherwise, leave it blank
  # Enter the sudo password as "BECOME password" on prompt
  ```

### Check Deployment Status

* Run the following commands on deployment machine:

  ```bash
  DEPLOYMENTS_DIR=<path-to-deployments-dir>

  cd $DEPLOYMENTS_DIR/nitro-node

  # Check the logs, ensure that the nodes are running
  laconic-so deployment --dir l1-nitro-deployment logs nitro-node -f
  laconic-so deployment --dir l2-nitro-deployment logs nitro-node -f

  # Let L1 node sync up with the chain
  # Expected logs after sync:
  # nitro-node-1  | 2:04PM INF Initializing Http RPC transport...
  # nitro-node-1  | 2:04PM INF Completed RPC server initialization url=127.0.0.1:4005/api/v1
  ```

* Get your Nitro node's info:

  ```bash
  laconic-so deployment --dir l1-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-node-info -p 4005 -h nitro-node"

  # Expected output:
  # {
  #   "SCAddress": "0xd0eA8b27591b1D070cCcD4D30b8D408fe794FDfc",
  #   "MessageServicePeerId": "16Uiu2HAmSHRjoxveaPmJipzmdq69U8zme8BMnFjSBPferj1E5XAd"
  # }

  # SCAddress -> nitro address, MessageServicePeerId -> libp2p peer id
  ```

## Create Channels

Create a ledger channel with the bridge on L1 which is mirrored on L2

* Run the following commands on deployment machine

* Set required variables:

  ```bash
  DEPLOYMENTS_DIR=<path-to-deployments-dir>

  cd $DEPLOYMENTS_DIR/nitro-node

  export BRIDGE_NITRO_ADDRESS=$(yq eval '.bridge_nitro_address' nitro-node-config.yml)

  export GETH_CHAIN_ID="1212"

  # Get asset addresses from assets.json file
  export ASSET_ADDRESS_1=$(jq -r --arg chainId "$GETH_CHAIN_ID" '.[$chainId][0].contracts.TestToken.address' assets.json)
  export ASSET_ADDRESS_2=$(jq -r --arg chainId "$GETH_CHAIN_ID" '.[$chainId][0].contracts.TestToken2.address' assets.json)
  ```

* Check that you have no existing channels on L1 or L2:

  ```bash
  laconic-so deployment --dir l1-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-all-ledger-channels -p 4005 -h nitro-node"
  laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-all-ledger-channels -p 4005 -h nitro-node"

  # Expected output:
  # []
  ```

* Ensure that your account has enough balance of tokens from `assets.json`

* Create a ledger channel between your L1 Nitro node and Bridge with custom asset:

  ```bash
  laconic-so deployment --dir l1-nitro-deployment exec nitro-rpc-client "nitro-rpc-client direct-fund $BRIDGE_NITRO_ADDRESS --asset "$ASSET_ADDRESS_1:1000,1000" --asset "$ASSET_ADDRESS_2:1000,1000" -p 4005 -h nitro-node"

  # Follow your L1 Nitro node logs for progress

  # Expected Output:
  # Objective started DirectFunding-0x161d289a50222caa781db215bb82a3ede4f557217742245525b8e8cbff04ec21
  # Channel Open 0x161d289a50222caa781db215bb82a3ede4f557217742245525b8e8cbff04ec21

  # Set the resulting ledger channel id in a variable
  export LEDGER_CHANNEL_ID=
  ```

  * Check the [Troubleshooting](#troubleshooting) section if command to create a ledger channel fails or gets stuck

* Once direct-fund objective is complete, the bridge will create a mirrored channel on L2

* Check L2 Nitro node's logs to see that a bridged-fund objective completed:

  ```bash
  laconic-so deployment --dir l2-nitro-deployment logs nitro-node -f --tail 30

  # Expected Output:
  # nitro-node-1  | 5:01AM INF INFO Objective cranked address=0xaaa6628ec44a8a742987ef3a114ddfe2d4f7adce objective-id=bridgedfunding-0x6a9f5ccf1fa802525d794f4a899897f947615f6acc7141e61e056a8bfca29179 waiting-for=WaitingForNothing
  # nitro-node-1  | 5:01AM INF INFO Objective is complete & returned to API address=0xaaa6628ec44a8a742987ef3a114ddfe2d4f7adce objective-id=bridgedfunding-0x6a9f5ccf1fa802525d794f4a899897f947615f6acc7141e61e056a8bfca29179
  ```

* Check status of L1 ledger channel with the bridge using channel id:

  ```bash
  laconic-so deployment --dir l1-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-ledger-channel $LEDGER_CHANNEL_ID -p 4005 -h nitro-node"

  # Example output:
  # {
  #   ID: '0xbb28acc2e1543f4b41eb1ab9eb2e354b18554aefe4e7f0fa5f20046869d8553f',
  #   Status: 'Open',
  #   Balances: [
  #     {
  #       AssetAddress: '0xa6b4b8b84576047a53255649b4994743d9c83a71',
  #       Me: '0xdaaa6ef3bc03f9c7dabc9a02847387d2c19107f5',
  #       Them: '0xf0e6a85c6d23aca9ff1b83477d426ed26f218185',
  #       MyBalance: 1000n,
  #       TheirBalance: 1000n
  #     },
  #     {
  #       AssetAddress: '0x0000000000000000000000000000000000000000',
  #       Me: '0xdaaa6ef3bc03f9c7dabc9a02847387d2c19107f5',
  #       Them: '0xf0e6a85c6d23aca9ff1b83477d426ed26f218185',
  #       MyBalance: 1000n,
  #       TheirBalance: 1000n
  #     }
  #   ],
  #   ChannelMode: 'Open'
  # }
  ```

* Check status of the mirrored channel on L2:

  ```bash
  laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-all-ledger-channels -p 4005 -h nitro-node"

  # Example output:
  # [
  #   {
  #     "ID": "0xb34210b763d4fdd534190ba11886ad1daa1e411c87be6fd20cff74cd25077c46",
  #     "Status": "Open",
  #     "Balances": [
  #       {
  #         "AssetAddress": "0xa4351114dae1abeb2d552d441c9733c72682a45d",
  #         "Me": "0x075400039e303b3fb46c0cff0404c5fa61947c05",
  #         "Them": "0xf0e6a85c6d23aca9ff1b83477d426ed26f218185",
  #         "MyBalance": 1000,
  #         "TheirBalance": 1000
  #       },
  #       {
  #         "AssetAddress": "0x314e43f9825b10961859c2a62c2de6a765c1c1f1",
  #         "Me": "0x075400039e303b3fb46c0cff0404c5fa61947c05",
  #         "Them": "0xf0e6a85c6d23aca9ff1b83477d426ed26f218185",
  #         "MyBalance": 1000,
  #         "TheirBalance": 1000
  #       }
  #     ],
  #     "ChannelMode": "Open"
  #   }
  # ]
  ```

## Payments On L2 Channel

Perform payments using a virtual payment channel created with another Nitro node over the mirrored L2 channel with bridge as an intermediary

* Prerequisite: Ledger channel is required to create a payment channel

* Note: Currently payment channel is created from first asset present in ledger channel

* Run the following commands on deployment machine

* Switch to the `nitro-node` directory:

  ```bash
  DEPLOYMENTS_DIR=<path-to-deployments-dir>

  cd $DEPLOYMENTS_DIR/nitro-node
  ```

* Check status of the mirrored channel on L2:

  ```bash
  laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-all-ledger-channels -p 4005 -h nitro-node"

  # Example output:
  # [
  #   {
  #     "ID": "0xb34210b763d4fdd534190ba11886ad1daa1e411c87be6fd20cff74cd25077c46",
  #     "Status": "Open",
  #     "Balances": [
  #       {
  #         "AssetAddress": "0xa4351114dae1abeb2d552d441c9733c72682a45d",
  #         "Me": "0x075400039e303b3fb46c0cff0404c5fa61947c05",
  #         "Them": "0xf0e6a85c6d23aca9ff1b83477d426ed26f218185",
  #         "MyBalance": 1000,
  #         "TheirBalance": 1000
  #       },
  #       {
  #         "AssetAddress": "0x314e43f9825b10961859c2a62c2de6a765c1c1f1",
  #         "Me": "0x075400039e303b3fb46c0cff0404c5fa61947c05",
  #         "Them": "0xf0e6a85c6d23aca9ff1b83477d426ed26f218185",
  #         "MyBalance": 1000,
  #         "TheirBalance": 1000
  #       }
  #     ],
  #     "ChannelMode": "Open"
  #   }
  # ]
  ```

* Set required variables:

  ```bash
  export BRIDGE_NITRO_ADDRESS=$(yq eval '.bridge_nitro_address' nitro-node-config.yml)

  # Counterparty to create the payment channel with
  export COUNTER_PARTY_ADDRESS=<counterparty-nitro-address>

  # Mirrored channel on L2
  export L2_CHANNEL_ID=<l2-channel-id>

  # Amount to create the payment channel with
  export PAYMENT_CHANNEL_AMOUNT=500
  ```

* Check for existing payment channels for the L2 channel:

  ```bash
  laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-payment-channels-by-ledger $L2_CHANNEL_ID -p 4005 -h nitro-node"
  ```

* Create a virtual payment channel:

  ```bash
  laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client virtual-fund $COUNTER_PARTY_ADDRESS $BRIDGE_NITRO_ADDRESS --amount $PAYMENT_CHANNEL_AMOUNT -p 4005 -h nitro-node"

  # Follow your L2 Nitro node logs for progress

  # Expected Output:
  # Objective started VirtualFund-0x43db45a101658387263b36d613322cc952d8ce5b70de51e3a495513c256bef4d
  # Channel Open 0x43db45a101658387263b36d613322cc952d8ce5b70de51e3a495513c256bef4d

  # Set the resulting payment channel id in a variable
  PAYMENT_CHANNEL_ID=<payment-channel-id>
  ```

  Multiple virtual payment channels can be created at once

* Check the payment channel's status:

  ```bash
  laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-payment-channel $PAYMENT_CHANNEL_ID -p 4005 -h nitro-node"

  # Expected output:
  # {
  #   ID: '0xb29aeb32c9495a793ebf7bd116232075d1e7bfe89fc82281c7d498e3ffd3e3bf',
  #   Status: 'Open',
  #   Balance: {
  #     AssetAddress: '0x0000000000000000000000000000000000000000',
  #     Payee: '<your-nitro-address>',
  #     Payer: '<counterparty-nitro-address>',
  #     PaidSoFar: 0n,
  #     RemainingFunds: <payment-channel-amount>n
  #   }
  # }
  ```

* Send payments using the virtual payment channel:

  ```bash
  export PAY_AMOUNT=200
  laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client pay $PAYMENT_CHANNEL_ID $PAY_AMOUNT -p 4005 -h nitro-node"

  # Expected output
  # {
  #   Amount: <pay-amount>,
  #   Channel: '<payment-channel-id>'
  # }

  # This can be done multiple times until the payment channel balance is exhausted
  ```

* Check payment channel's status again to view updated channel state

* Close the payment channel to settle on the L2 mirrored channel:

  ```bash
  laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client virtual-defund $PAYMENT_CHANNEL_ID -p 4005 -h nitro-node"

  # Expected output:
  # Objective started VirtualDefund-0x43db45a101658387263b36d613322cc952d8ce5b70de51e3a495513c256bef4d
  # Channel complete 0x43db45a101658387263b36d613322cc952d8ce5b70de51e3a495513c256bef4d
  ```

* Check L2 mirrored channel's status after the virtual payment channel is closed:

  ```bash
  laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-all-ledger-channels -p 4005 -h nitro-node"

  # Example output:
  # [
  #   {
  #     "ID": "0xb34210b763d4fdd534190ba11886ad1daa1e411c87be6fd20cff74cd25077c46",
  #     "Status": "Open",
  #     "Balances": [
  #       {
  #         "AssetAddress": "0xa4351114dae1abeb2d552d441c9733c72682a45d",
  #         "Me": "0x075400039e303b3fb46c0cff0404c5fa61947c05",
  #         "Them": "0xf0e6a85c6d23aca9ff1b83477d426ed26f218185",
  #         "MyBalance": <updated balance>,
  #         "TheirBalance": <updated balance>
  #       },
  #       {
  #         "AssetAddress": "0x314e43f9825b10961859c2a62c2de6a765c1c1f1",
  #         "Me": "0x075400039e303b3fb46c0cff0404c5fa61947c05",
  #         "Them": "0xf0e6a85c6d23aca9ff1b83477d426ed26f218185",
  #         "MyBalance": <updated balance>,
  #         "TheirBalance": <updated balance>
  #       }
  #     ],
  #     "ChannelMode": "Open"
  #   }
  # ]
  ```

  Your balance on the L2 channel should be reduced by total payments done on the virtual payment channel

## Swaps on L2

Perform swaps using a swap channel created with another Nitro node over the mirrored L2 channel with bridge as an intermediary

* Prerequisite: Ledger channel is required to create a swap channel

* Run the following commands on deployment machine

* Switch to the `nitro-node` directory:

  ```bash
  DEPLOYMENTS_DIR=<path-to-deployments-dir>

  cd $DEPLOYMENTS_DIR/nitro-node
  ```

* Check status of the mirrored channel on L2:

  ```bash
  laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-all-ledger-channels -p 4005 -h nitro-node"

  # Example output:
  # [
  #   {
  #     "ID": "0xb34210b763d4fdd534190ba11886ad1daa1e411c87be6fd20cff74cd25077c46",
  #     "Status": "Open",
  #     "Balances": [
  #       {
  #         "AssetAddress": "0xa4351114dae1abeb2d552d441c9733c72682a45d",
  #         "Me": "0x075400039e303b3fb46c0cff0404c5fa61947c05",
  #         "Them": "0xf0e6a85c6d23aca9ff1b83477d426ed26f218185",
  #         "MyBalance": 1000,
  #         "TheirBalance": 1000
  #       },
  #       {
  #         "AssetAddress": "0x314e43f9825b10961859c2a62c2de6a765c1c1f1",
  #         "Me": "0x075400039e303b3fb46c0cff0404c5fa61947c05",
  #         "Them": "0xf0e6a85c6d23aca9ff1b83477d426ed26f218185",
  #         "MyBalance": 1000,
  #         "TheirBalance": 1000
  #       }
  #     ],
  #     "ChannelMode": "Open"
  #   }
  # ]
  ```

* Set required variables:

  ```bash
  export BRIDGE_NITRO_ADDRESS=$(yq eval '.bridge_nitro_address' nitro-node-config.yml)

  # Counterparty to create the swap channel with
  export COUNTER_PARTY_ADDRESS=<counterparty-nitro-address>

  # Get asset addresses from assets.json file
  export ASSET_ADDRESS_1=$(jq -r --arg chainId "$CHAIN_ID" '.[$chainId][0].contracts.TestToken.address' assets.json)
  export ASSET_ADDRESS_2=$(jq -r --arg chainId "$CHAIN_ID" '.[$chainId][0].contracts.TestToken2.address' assets.json)
  ```

* Create swap channel:

  ```bash
  laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client swap-fund  $COUNTER_PARTY_ADDRESS $BRIDGE_NITRO_ADDRESS --asset "$ASSET_ADDRESS_1:100,100" --asset "$ASSET_ADDRESS_2:100,100" -p 4005 -h nitro-node"

  # Expected output
  # Objective started SwapFund-0x1dbd58d314f123f4b0f4147eee7fd92fa523ba7082d8a75b846f6d1189e2f0e9
  # Channel open 0x1dbd58d314f123f4b0f4147eee7fd92fa523ba7082d8a75b846f6d1189e2f0e9
  ```

* Export swap channel ID:

  ```bash
  export SWAP_CHANNEL_ID=
  ```

* Check swap channel:

  ```bash
  laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-swap-channel $SWAP_CHANNEL_ID -p 4005 -h nitro-node"

  # Expected output:
  # {
  #   ID: '0x1dbd58d314f123f4b0f4147eee7fd92fa523ba7082d8a75b846f6d1189e2f0e9',
  #   Status: 'Open',
  #   Balances: [
  #     {
  #       AssetAddress: '0xa4351114dae1abeb2d552d441c9733c72682a45d',
  #       Me: '0x075400039e303b3fb46c0cff0404c5fa61947c05',
  #       Them: '0xd0ea8b27591b1d070cccd4d30b8d408fe794fdfc',
  #       MyBalance: 100n,
  #       TheirBalance: 100n
  #     },
  #     {
  #       AssetAddress: '0x314e43f9825b10961859c2a62c2de6a765c1c1f1',
  #       Me: '0x075400039e303b3fb46c0cff0404c5fa61947c05',
  #       Them: '0xd0ea8b27591b1d070cccd4d30b8d408fe794fdfc',
  #       MyBalance: 100n,
  #       TheirBalance: 100n
  #     }
  #   ]
  # }
  ```

### Performing swaps

* One of the participants can initiate the swap and other one will either accept it or reject it

* For initiating the swap:

  ```bash
  laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client swap-initiate $SWAP_CHANNEL_ID --AssetIn "$ASSET_ADDRESS_1:20" --AssetOut "$ASSET_ADDRESS_2:10" -p 4005 -h nitro-node"

  # Expected output:
  # {
  #   SwapAssetsData: {
  #     TokenIn: '0xa4351114dae1abeb2d552d441c9733c72682a45d',
  #     TokenOut: '0x314e43f9825b10961859c2a62c2de6a765c1c1f1',
  #     AmountIn: 20,
  #     AmountOut: 10
  #   },
  #   Channel: '0x1dbd58d314f123f4b0f4147eee7fd92fa523ba7082d8a75b846f6d1189e2f0e9'
  # }
  ```

  OR

* For receiving the swap

  * Get the pending swap:

    ```bash
    laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-pending-swap $SWAP_CHANNEL_ID -p 4005 -h nitro-node"

    # Expected output:
    # {
    #   Id: '0x7d582020753335cfd2f2af14127c9b51c7ed7a5d547a674d9cb04fe62de6ddf3',
    #   ChannelId: '0x1dbd58d314f123f4b0f4147eee7fd92fa523ba7082d8a75b846f6d1189e2f0e9',
    #   Exchange: {
    #     TokenIn: '0xa4351114dae1abeb2d552d441c9733c72682a45d',
    #     TokenOut: '0x314e43f9825b10961859c2a62c2de6a765c1c1f1',
    #     AmountIn: 20,
    #     AmountOut: 10
    #   },
    #   Sigs: {
    #     '0': '0x0a018de18a091f7bfb400d9bc64fe958d298882e569c1668c5b1c853b5493221576b2d72074ef6e1899b79e60eaa9934afac5c1e07b7000746bac5b3b1da93311b'
    #   },
    #   Nonce: 2840594896360394000
    # }
    ```

  * Export swap ID:

    ```bash
    export SWAP_ID=
    ```

  * Either accept or reject the swap

    * To accept:

      ```bash
      laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client swap-accept $SWAP_ID -p 4005 -h nitro-node"

      # Expected output:
      # Confirming Swap with accepted
      # Objective complete Swap-0x7d582020753335cfd2f2af14127c9b51c7ed7a5d547a674d9cb04fe62de6ddf3
      ```

      OR

    * To reject:

      ```bash
      laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client swap-reject $SWAP_ID -p 4005 -h nitro-node"

      # Expected output:
      # Confirming Swap with accepted
      # Objective complete Swap-0x7d582020753335cfd2f2af14127c9b51c7ed7a5d547a674d9cb04fe62de6ddf3
      ```

* Check swap channel:

  ```bash
  laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-swap-channel $SWAP_CHANNEL_ID -p 4005 -h nitro-node"

  # Example output:
  # {
  #   ID: '0x1dbd58d314f123f4b0f4147eee7fd92fa523ba7082d8a75b846f6d1189e2f0e9',
  #   Status: 'Open',
  #   Balances: [
  #     {
  #       AssetAddress: '0xa4351114dae1abeb2d552d441c9733c72682a45d',
  #       Me: '0xd0ea8b27591b1d070cccd4d30b8d408fe794fdfc',
  #       Them: '0x075400039e303b3fb46c0cff0404c5fa61947c05',
  #       MyBalance: 120n,
  #       TheirBalance: 80n
  #     },
  #     {
  #       AssetAddress: '0x314e43f9825b10961859c2a62c2de6a765c1c1f1',
  #       Me: '0xd0ea8b27591b1d070cccd4d30b8d408fe794fdfc',
  #       Them: '0x075400039e303b3fb46c0cff0404c5fa61947c05',
  #       MyBalance: 90n,
  #       TheirBalance: 110n
  #     }
  #   ]
  # }
  ```

* Close swap channel:

  ```bash
  laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client swap-defund $SWAP_CHANNEL_ID -p 4005 -h nitro-node"

  # Expected output:
  # Objective started SwapDefund-0x1dbd58d314f123f4b0f4147eee7fd92fa523ba7082d8a75b846f6d1189e2f0e9
  # Objective complete SwapDefund-0x1dbd58d314f123f4b0f4147eee7fd92fa523ba7082d8a75b846f6d1189e2f0e9
  ```

* Check L2 mirrored channel status:

  ```bash
  laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-all-ledger-channels -p 4005 -h nitro-node"

  # Example output:
  # [
  #   {
  #     "ID": "0xb34210b763d4fdd534190ba11886ad1daa1e411c87be6fd20cff74cd25077c46",
  #     "Status": "Open",
  #     "Balances": [
  #       {
  #         "AssetAddress": "0xa4351114dae1abeb2d552d441c9733c72682a45d",
  #         "Me": "0x075400039e303b3fb46c0cff0404c5fa61947c05",
  #         "Them": "0xf0e6a85c6d23aca9ff1b83477d426ed26f218185",
  #         "MyBalance": <updated balance>,
  #         "TheirBalance": <updated balance>
  #       },
  #       {
  #         "AssetAddress": "0x314e43f9825b10961859c2a62c2de6a765c1c1f1",
  #         "Me": "0x075400039e303b3fb46c0cff0404c5fa61947c05",
  #         "Them": "0xf0e6a85c6d23aca9ff1b83477d426ed26f218185",
  #         "MyBalance": <updated balance>,
  #         "TheirBalance": <updated balance>
  #       }
  #     ],
  #     "ChannelMode": "Open"
  #   }
  # ]
  ```

## Clean up

* Switch to deployments dir:

  ```bash
  cd $DEPLOYMENTS_DIR/nitro-node
  ```

* Stop all Nitro services running in the background:

  ```bash
  laconic-so deployment --dir l1-nitro-deployment stop
  laconic-so deployment --dir l2-nitro-deployment stop
  ```

* To stop all services and also delete data:

  ```bash
  laconic-so deployment --dir l1-nitro-deployment stop --delete-volumes
  laconic-so deployment --dir l2-nitro-deployment stop --delete-volumes

  # Remove deployment directories (deployments will have to be recreated for a re-run)
  sudo rm -r l1-nitro-deployment
  sudo rm -r l2-nitro-deployment
  ```

## Troubleshooting

* Check the logs of nitro node to see if the objective is completed

  ```bash
  # To check logs of L1 nitro-node
  laconic-so deployment --dir l1-nitro-deployment logs nitro-node -f --tail 30

  # To check logs of L2 nitro-node
  laconic-so deployment --dir l2-nitro-deployment logs nitro-node -f --tail 30
  ```

  * If the objective is completed, you can safely stop (`Ctrl+C`) the running CLI command and continue with the further instructions

* Stop (`Ctrl+C`) the direct-fund command if it is stuck

* Restart the L1 Nitro node:

  * Stop the deployment:

    ```bash
    cd $DEPLOYMENTS_DIR/nitro-node

    laconic-so deployment --dir l1-nitro-deployment stop
    ```

  * Reset the node's durable store:

    ```bash
    sudo rm -rf l1-nitro-deployment/data/nitro_node_data

    mkdir l1-nitro-deployment/data/nitro_node_data
    ```

  * Restart the deployment:

    ```bash
    laconic-so deployment --dir l1-nitro-deployment start
    ```

* Retry the ledger channel creation command