initial commit

lib/full_odds/middleware/error_handler.rb

@@ -0,0 +1,28 @@
+# frozen_string_literal: true
+
+require_relative '../middleware'
+require_relative '../environment'
+require_relative '../http/error'
+
+module FO::Middleware
+  module ErrorHandler
+    extend FO::Middleware
+
+    def self.dispatch(request, response, app)
+      app.call(request.env)
+    rescue FO::HTTP::Error => e
+      response
+        .status(e.status)
+        .template('error', {status: e.status, message: e.message, error: e})
+    rescue => e
+      warn "Uncaught exception: #{e.message}"
+      warn e.backtrace
+      message = FO::Environment.is_prod? ?
+                  'Something went very wrong ... please try again later.' :
+                  e.message
+      response
+        .status(500)
+        .template('error', {status: 500, message: message, error: e})
+    end
+  end
+end