# `SEO.Facebook`
[🔗](https://github.com/dbernheisel/phoenix_seo/blob/0.2.1/lib/seo/facebook.ex#L1)

Facebook originally developed the OpenGraph standard, so much of social-sharing techniques
are contained in `SEO.OpenGraph`, however there remains one Facebook-specific attribute: the `:app_id`.

Resources:
- https://developers.facebook.com/docs/sharing/webmasters/

# `t`

```elixir
@type t() :: %SEO.Facebook{app_id: String.t()}
```

# `build`

```elixir
@spec build(SEO.attrs(), SEO.config()) :: t() | nil
```

In order to use Facebook Insights you must add the `:app_id` to your page. Insights lets you view analytics for traffic
to your site from Facebook. Find the app ID in your [Facebook App Dashboard](https://developers.facebook.com/apps/redirect/dashboard).

# `meta`

## Attributes

* `item` (`SEO.Facebook`) - Defaults to `nil`.
* `config` (`:any`) - Defaults to `nil`.

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*Consult [api-reference.md](api-reference.md) for complete listing*