mostalive
061787e897
Not Original Gangsta, but ObjectGraph Reason: images were showing on LinkedIn, but small.
86 lines
2.4 KiB
Elixir
86 lines
2.4 KiB
Elixir
defmodule Blogex.SEO do
|
|
@moduledoc """
|
|
SEO helpers for generating meta tags and sitemaps.
|
|
"""
|
|
|
|
@doc """
|
|
Returns a map of meta tag attributes for a blog listing page.
|
|
Useful for setting OpenGraph and Twitter card tags on blog index pages.
|
|
|
|
<meta property="og:title" content={@meta.og_title} />
|
|
"""
|
|
def meta_tags_for_blog(blog_module, base_url) do
|
|
url = "#{base_url}#{blog_module.base_path()}"
|
|
|
|
%{
|
|
title: blog_module.title(),
|
|
description: blog_module.description(),
|
|
og_title: blog_module.title(),
|
|
og_description: blog_module.description(),
|
|
og_type: "website",
|
|
og_url: url,
|
|
og_image: nil,
|
|
twitter_card: "summary"
|
|
}
|
|
end
|
|
|
|
@doc """
|
|
Returns a map of meta tag attributes for a post.
|
|
Useful for setting OpenGraph and Twitter card tags in your layout.
|
|
|
|
<meta property="og:title" content={@meta.og_title} />
|
|
<meta property="og:image" content={@meta.og_image} />
|
|
"""
|
|
def meta_tags(post, base_url, blog_module) do
|
|
url = "#{base_url}#{blog_module.base_path()}/#{post.id}"
|
|
|
|
%{
|
|
title: post.title,
|
|
description: post.description,
|
|
og_title: post.title,
|
|
og_description: post.description,
|
|
og_type: "article",
|
|
og_url: url,
|
|
og_image: if(post.image, do: "#{base_url}#{post.image}", else: nil),
|
|
article_published_time: Date.to_iso8601(post.date),
|
|
article_author: post.author,
|
|
article_tags: post.tags,
|
|
twitter_card: "summary_large_image"
|
|
}
|
|
end
|
|
|
|
@doc """
|
|
Generates a sitemap.xml string for the given blog modules.
|
|
|
|
xml = Blogex.SEO.sitemap([MyApp.EngineeringBlog, MyApp.ReleaseNotes], "https://myapp.com")
|
|
"""
|
|
def sitemap(blog_modules, base_url) when is_list(blog_modules) do
|
|
urls =
|
|
blog_modules
|
|
|> Enum.flat_map(fn mod ->
|
|
mod.all_posts()
|
|
|> Enum.map(fn post ->
|
|
url = "#{base_url}#{mod.base_path()}/#{post.id}"
|
|
lastmod = Date.to_iso8601(post.date)
|
|
|
|
"""
|
|
<url>
|
|
<loc>#{url}</loc>
|
|
<lastmod>#{lastmod}</lastmod>
|
|
<changefreq>monthly</changefreq>
|
|
<priority>0.7</priority>
|
|
</url>
|
|
"""
|
|
end)
|
|
end)
|
|
|> Enum.join()
|
|
|
|
"""
|
|
<?xml version="1.0" encoding="UTF-8"?>
|
|
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
|
|
#{urls}</urlset>
|
|
"""
|
|
|> String.trim()
|
|
end
|
|
end
|