> For the complete documentation index, see [llms.txt](https://creeptah.gitbook.io/cosmobook_nodes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://creeptah.gitbook.io/cosmobook_nodes/starknet/install_node.md).

# StarkNet node

## Install guide

### Update packages

```Bash
sudo apt update && sudo apt upgrade -y
```

### Install Pyton

Install `Pip` to manage software packages for Python.

```Bash
sudo apt install -y python3-pip
```

Install a few more packages and development tools

```Bash
sudo apt install -y curl git screen build-essential libssl-dev libffi-dev python3-dev
sudo apt-get install libgmp-dev
pip3 install fastecdsa
sudo apt-get install -y pkg-config
```

### Install Rust

```Bash
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
```

### Install Cargo

```Bash
sudo apt install cargo -y
source $HOME/.cargo/env
```

### Update Rust to the latest version

```Bash
rustup update stable
```

### Clone Pathfinder github repository

```Bash
ver=""
git clone --branch $ver https://github.com/eqlabs/pathfinder.git
```

### Create a virtual environment for a node

```Bash
sudo apt install python3.8-venv

# Open separate terminal to run node
screen -S stark

# Move to py folder
cd pathfinder/py

# Create the virtual environment called venv
python3 -m venv .venv

# and activate it
source .venv/bin/activate

# Install some more tools for node
PIP_REQUIRE_VIRTUALENV=true pip install --upgrade pip
PIP_REQUIRE_VIRTUALENV=true pip install -r requirements-dev.txt

# Test if previous steps were successful
pytest
```

### Assemble node

```Bash
cargo build --release --bin pathfinder
```

### Create Infura or Alchemy account

* Go to [Alchemy](https://www.alchemy.com/) (for ex.) and sing up.
* On dashboard click on Create App
* Give new app a name and choose either Mainnet or Goerli Network
* You will now be able to see the endpoint on your dashboard. Copy the https one

### Run node

```Bash
cargo run --release --bin pathfinder -- --ethereum.url https://mainnet.infura.io/v3/xxxxx

# or

cargo run --release --bin pathfinder -- --ethereum.url https://eth-goerli.alchemyapi.io/v2/xxxxx
```

To exit from `screen` tap `CTRL+a` and than `d`.

## Update node

Enter to screen

```Bash
screen -r stark
```

To stop node tap `CTRL+c`, than `CTRL+a` and `d`

Update bin

```Bash
cd pathfinder
rm -rf pathfinder
git fetch
ver=""
git checkout $ver
git clone --branch $ver https://github.com/eqlabs/pathfinder.git
```

Enter to screen

```Bash
screen -r stark
```

Run node

```Bash
cd $HOME/pathfinder/py
python3 -m venv .venv
source .venv/bin/activate
PIP_REQUIRE_VIRTUALENV=true pip install --upgrade pip
PIP_REQUIRE_VIRTUALENV=true pip install -r requirements-dev.txt
pytest
cargo build --release --bin pathfinder

# run node
cargo run --release --bin pathfinder -- --ethereum.url https://mainnet.infura.io/v3/xxxxx

# or

cargo run --release --bin pathfinder -- --ethereum.url https://eth-goerli.alchemyapi.io/v2/xxxxx
```

To exit from `screen` tap `CTRL+a` and than `d`.