Add exception handlers in base API controller

* For record not found returns a 404 response
* For wrong parameters returns a 400 response
* For other exceptions returns a 500 response

app/controllers/api/v0/base_controller.rb

@@ -7,6 +7,26 @@ module Api
 
       protected
 
+      rescue_from Exception do |e|
+        logger.error e.message
+        render json: {error: e.message}, status: 500
+      end
+
+      rescue_from ActiveRecord::RecordNotFound do
+        render json: {error: I18n.t("api.error.not_found")}, status: 404
+      end
+
+      rescue_from ActiveRecord::RecordInvalid do |e|
+        render json: {error: e.to_s}, status: 400
+      end
+
+      rescue_from ActionController::ParameterMissing do |e|
+        render json: {
+          error:   I18n.t("api.error.wrong_parameters"),
+          message: e.message
+        }, status: 400
+      end
+
       def current_user
         current_token ? current_token.authorization.user : nil
       end