Fix twitter (x) posts for v2 api

.tool-versions

@@ -1,3 +1,3 @@
-elixir 1.14.1-otp-25
-erlang 25.1.2
+elixir 1.17.2-otp-27
+erlang 27.0.1
 nodejs 19.0.0

lib/tilex/notifications/notifiers/twitter.ex

@@ -1,7 +1,9 @@
 defmodule Tilex.Notifications.Notifiers.Twitter do
+  alias OAuther
   alias Tilex.Blog.Developer
 
   use Tilex.Notifications.Notifier
+  require Logger
 
   def handle_post_created(post, developer, channel, url) do
     "#{post.title} #{url} via @#{Developer.twitter_handle(developer)} #til ##{channel.twitter_hashtag}"
@@ -16,7 +18,40 @@ defmodule Tilex.Notifications.Notifiers.Twitter do
     :ok
   end
 
-  def send_tweet(text) do
-    ExTwitter.update(text)
+  def send_tweet(message) do
+    url = "https://api.x.com/2/tweets"
+
+    params = %{
+      "text" => message
+    }
+
+    headers =
+      oauth_headers("post", url) ++
+        [{"Content-Type", "application/json"}]
+
+    Req.post!(url, headers: headers, json: params)
+  end
+
+  defp oauth_headers(method, url) do
+    {auth_header, _params} =
+      OAuther.sign(method, url, [], oauth_creds())
+      |> OAuther.header()
+
+    [auth_header]
+  end
+
+  def oauth_creds do
+    consumer_key = System.get_env("twitter_consumer_key")
+    consumer_secret = System.get_env("twitter_consumer_secret")
+    access_token = System.get_env("twitter_access_token")
+    access_token_secret = System.get_env("twitter_access_token_secret")
+
+    OAuther.credentials(
+      method: :hmac_sha1,
+      consumer_key: consumer_key,
+      consumer_secret: consumer_secret,
+      token: access_token,
+      token_secret: access_token_secret
+    )
   end
 end

mix.exs

@@ -59,6 +59,7 @@ defmodule Tilex.Mixfile do
       {:plug_cowboy, "~> 2.5"},
       {:postgrex, ">= 0.0.0"},
       {:swoosh, "~> 1.3"},
+      {:req, "~> 0.5.6"},
       {:telemetry_metrics, "~> 0.6"},
       {:telemetry_poller, "~> 1.0"},
       {:timex, "~> 3.1"},