rascunho

diff --git a/core/app.py b/core/app.py
index 4dea414b8de7d63ea323884dc788e4a5d259e830..c5c4cbcc1573e744ca9c883a95413eb50b3fdbc5 100644
--- a/core/app.py
+++ b/core/app.py
@@ -1,4 +1,4 @@
-from flask import Flask, abort
+from flask import Flask, abort, render_template, request
 from jinja2 import Markup
 import locale
 from core.config import read_from_config, env
@@ -50,6 +50,27 @@
         @self.template_filter()
         def md(text):
             return mistune.markdown(text)
+
+        @self.errorhandler(422)
+        def handle_unprocessable_entity(e):
+            if request.path.startswith("/api"):
+                return { "errors": [ { "reason": "422 Unprocessable Entity" } ] }, 422
+
+            return render_template("unprocessable_entity.html", 422)
+
+        @self.errorhandler(500)
+        def handle_internal_server_error(e):
+            if request.path.startswith("/api"):
+                return { "errors": [ { "reason": "500 Internal Server Error" } ] }, 500
+
+            return render_template("internal_error.html", 500)
+
+        @self.errorhandler(404)
+        def handle_not_found(e):
+            if request.path.startswith("/api"):
+                return { "errors": [ { "reason": "404 Not Found" } ] }, 404
+
+            return render_template("not_found.html"), 404
 
         @self.context_processor
         def inject():