# Prerequisite Installation

### Install Git

Download the latest version of [git](https://git-scm.com/downloads) if it is not already installed.

```bash
sudo apt-get update
```

```bash
sudo apt-get install git
```

### Install cURL

Download the latest version of the [cURL](https://curl.haxx.se/download.html) tool if it is not already installed or if you get errors running the curl commands from the documentation.

```bash
sudo apt install curl
```

### Docker and Docker Compose

You will need the following installed on the platform on which you will be operating, or developing (or for), Hyperledger Fabric:

**Set up the repository**

1. Update the `apt` package index and install packages to allow `apt` to use a repository over HTTPS:

```bash
sudo apt-get update

sudo apt-get install \
    ca-certificates \
    curl \
    gnupg \
    lsb-release
```

2. Add Docker’s official GPG key:

```bash
sudo mkdir -m 0755 -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
```

3. Use the following command to set up the repository:

```bash
echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
```

**Install Docker Engine**

1. Update the `apt` package index:

```bash
sudo apt-get update
```

2. Install Docker Engine, containerd, and Docker Compose.

       To install the latest version, run:

```bash
 sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
```

3. Make sure the docker daemon is running.

```bash
sudo systemctl start docker
sudo systemctl enable docker
sudo groupadd docker
sudo usermod -aG docker ${USER}
```

```bash
sudo setfacl --modify user:$USER:rw /var/run/docker.sock
```

4. Check if your Hello-World works fine: 

<pre class="language-bash"><code class="lang-bash"><strong>sudo docker run hello-world
</strong></code></pre>

5. Install docker-compose and check its version

```bash
sudo curl -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

sudo chmod +x /usr/local/bin/docker-compose

docker-compose --version

```

### Install GoLang

We would need Go-Lang to run chaincodes on Hyperledger Fabric. Let's Install by running the below commands.

```bash
sudo snap install go --classic
source ~/.profile
```

Let's check the go version.

```bash
go version
```

### Install NVM

NVM is a Node Version Manager tool. Using the NVM utility, you can install multiple node.js versions on a single system. You can also choose a specific Node version for applications.

```bash
sudo apt-get install build-essential libssl-dev
curl https://raw.githubusercontent.com/creationix/nvm/master/install.sh | bash
source ~/.profile
```

### Install Node and NPM

You can install multiple node.js versions using nvm. And use the required version for your application from installed node.js.

```bash
nvm install 20
nvm use 20
```

Let's check Node & Npm Versions

```bash
node --version
npm --version
```


---

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