The first thing you should do when you start a new Frontity project is to configure your frontity.settings.js file. Let's take a look at each concept you need to understand in order to use it properly.

Site

A site is a set of packages and settings. For example, this is a site:

frontity.settings.js
export default [
  {
    name: "my-site", // The name of your site.
    state: {
      frontity: {
        url: "https://www.site.com", // Some settings.
      }
    },
    packages: [
      "@frontity/mars-theme",  // And the packages of that site.
      "@frontity/tiny-router",
      "@frontity/wp-source"
    ]
  }
]

Multiple Sites

One Frontity installation can serve content for multiple sites. This is useful if you have severals blogs and want to manage all of them with the same installation. Both the packages and settings of each site are independent.

To distinguish between different sites, you must use a match setting. Each time a new request is received by Frontity, it tests the URL against the match field to know which site it should load:

export default [
  {
    name: "site-1",
    match: ["https://www.site-1.com"],
    packages: [...]
  },
  {
    name: "site-2",
    match: ["https://www.site-2.com"],
    packages: [...]
  }
]

For example, if the URL is https://www.site-1.com/my-post the "site-1" settings are loaded and if the URL is https://www.site-2.com/category/some-cat the "site-2" settings are loaded.

In development, you can access a specific site using the ?name= query:

https://localhost:3000/?name=site-2

Packages

You can specify a different set of packages for each site. They can be either strings or objects:

frontity.settings.js
export default [
  {
    packages: [
      "@frontity/mars-theme",
      "@frontity/tiny-router",
      {
        name: "@frontity/wp-source",
        active: true,
        state: {  // Some settings for this package.
          source: {
            api: "https://wp.site.com/wp-json"
          }
        }
      }
    ]
  }
]

As you can see, they have an active prop. That means you can deactivate a package without having to delete it from your settings file.

In Frontity, all the code is contained in packages. In a sense it is more similar to WordPress, where all the code is contained in your theme and plugins, than to other JavaScript frameworks. This is obviously on purpose, but we will explain the reasons later when we talk about packages and namespaces :)

That's pretty much it about packages for now.

State

The last thing you need to know to work with your frontity.settings.js file are the settings.

As you have probably already noticed, we don't use settings, we use state. That's on purpose as well.

If you come from a WordPress background, you can think of Frontity stateas the database of your application. And if you come from a React background, well... it's the state that you usually find in Redux or MobX. That state is accessible by your packages at runtime.

You have the opportunity to modify the initial state of your site in the frontity.settings.js file. You can do it in a general state object or inside packages.

frontity.settings.js
export default [
  {
    name: "my-site",
    state: {
      frontity: {
        url: "https://www.site.com", // Some settings of the site.
      }
    },
    packages: [
      "@frontity/mars-theme",
      "@frontity/tiny-router",
      {
        name: "@frontity/wp-source",
        state: {  // Some settings for this package.
          source: {
            api: "https://wp.site.com/wp-json"
          }
        }
      }
    ]
  }
]

In Frontity, the state is organized in what we call namespaces. It means that each package uses a specific part of the state: a namespace. For example, our wp-source package uses the source namespace to store its settings.

And our tiny-router package uses the router namespace:

frontity.settings.js
packages: [
  {
    name: "@frontity/tiny-router",
    state: {
      router: {
        autoFetch: true
      }
    }
  }
]

For now, let's leave it here. We will explain why the namespaces are important later.

The important takeaway here is: in the settings file you have the opportunity to change the state of Frontity. Most of the time you will use this to configure the settings of each package.