From 957dea59c66ce2ec1d823b9e1f9da6e8607d898e Mon Sep 17 00:00:00 2001
From: FinnIckler <finnickler@gmail.com>
Date: Mon, 9 Sep 2024 16:34:56 +0200
Subject: [PATCH] Add json response exceptions_app (#675)

* Add json response exceptions_app

* run rubocop
---
 app/controllers/errors_controller.rb | 10 ++++++++++
 config/environments/production.rb    |  5 +++++
 lib/error_codes.rb                   |  1 +
 3 files changed, 16 insertions(+)
 create mode 100644 app/controllers/errors_controller.rb

diff --git a/app/controllers/errors_controller.rb b/app/controllers/errors_controller.rb
new file mode 100644
index 00000000..e38367f2
--- /dev/null
+++ b/app/controllers/errors_controller.rb
@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+class ErrorsController < ApplicationController
+  def show
+    exception = request.env['action_dispatch.exception']
+    status_code = ActionDispatch::ExceptionWrapper.new(request.env, exception).status_code
+    request_id = request.env['action_dispatch.request_id']
+    render json: { error: ErrorCodes::INTERNAL_SERVER_ERROR, request_id: request_id }, status: status_code
+  end
+end
diff --git a/config/environments/production.rb b/config/environments/production.rb
index 066ddffc..d18e6795 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -98,4 +98,9 @@
 
   # Do not dump schema after migrations.
   config.active_record.dump_schema_after_migration = false
+
+  # Returns json on error
+  config.exceptions_app = ->(env) {
+    ErrorsController.action(:show).call(env)
+  }
 end
diff --git a/lib/error_codes.rb b/lib/error_codes.rb
index b42cb109..a4da53b5 100644
--- a/lib/error_codes.rb
+++ b/lib/error_codes.rb
@@ -5,6 +5,7 @@ module ErrorCodes
   INVALID_TOKEN = -1
   EXPIRED_TOKEN = -2
   MISSING_AUTHENTICATION = -3
+  INTERNAL_SERVER_ERROR = -4
 
   # Competition Errors
   COMPETITION_NOT_FOUND = -1000