Installing The Development Environment¶

First, we need last LTS NodeJS version (8.12.0 at writing time). We recommend to use nvm to install NodeJS instead of using your OS-based version.

Install nvm on your system using the instructions and provided script at:

https://github.com/nvm-sh/nvm#install-script

Using nvm we will look up the latest lts version of NodeJS and install it

nvm install --lts
nvm use --lts


NodeJS is provided with npm, its package manager, we will use it to install the GatsbyJS CLI

npm install --g gatsby-cli


Note

-g means the CLI will be available globally in our nvm instance.

When you are prompted to use either yarn or npm to install the GatsbyJS CLI, it's ok to use the default, yarn.

Creating a new GatsbyJS site¶

The CLI allows to initialize a project:

gatsby new hello-world


This command tells gatsby-cli to create a new GatsbyJS project with the name hello-world with a basic default file structure.

There are several boilerplates created by the community that allows to bootstrap an application for different use-cases.

These boilerplates are called "starters" and in the offical site you could find a complete list of available starters. There are starters with some pre-configured themes (for example material-ui or bootstrap), support for authentication, and so on.

There are also some starters that are specialized in integration with some external sources, such as a CMS like Plone or WordPress. They create a boilerplate with all the configuration to fetch data from the external sources and give some helper methods to build the pages/interface with that specific data, such as the breadcrumbs or navigation.

Data fetching part is usually managed by a different type of plugins called "source-plugins" that can retrieve data from a specific source.

We will cover "source-plugins" in later chapters.

Note

To create a new project with a starter, you need to append the github URL of the desired starter in the cli command: gatsby new [SITE_DIRECTORY] [URL_OF_STARTER_GITHUB_REPO]

cd hello-world
gatsby develop


This command starts a development server. You will be able to see and interact with your new site in a development environment at http://localhost:8000.

Now that we have a working installation, let us go deep inside GatsbyJS to see how it works and what are its main parts.