Add db timeout error grouping in sentry

config/config.exs

@@ -33,6 +33,7 @@ config :tesla,
   adapter: Tesla.Adapter.Hackney
 
 config :sentry,
+  before_send_event: {Accent.Sentry, :before_send},
   release: version
 
 config :ueberauth, Ueberauth, providers: []

config/runtime.exs

@@ -126,7 +126,7 @@ else
   config :sentry,
     dsn: System.get_env("SENTRY_DSN"),
     environment_name: System.get_env("SENTRY_ENVIRONMENT_NAME"),
-    included_environments: ~w(prod production),
+    included_environments: ~w(dev prod production),
     root_source_code_path: File.cwd!()
 end
 

lib/accent/sentry.ex

@@ -0,0 +1,9 @@
+defmodule Accent.Sentry do
+  def before_send(%{exception: [%{type: DBConnection.ConnectionError}]} = event) do
+    %{event | fingerprint: ~w(ecto db_connection timeout)}
+  end
+
+  def before_send(event) do
+    event
+  end
+end