From 9a95cfc4842f84578d2777b1cb5be70d15de6ea4 Mon Sep 17 00:00:00 2001
From: Tim Deschryver <28659384+timdeschryver@users.noreply.github.com>
Date: Wed, 1 Aug 2018 12:50:03 +0200
Subject: [PATCH] feat(Effects): stringify action on invalid action Message
 before: ERROR Error: Effect "AuthEffects.login$" dispatched an invalid
 action: [object Object] Message after: ERROR Error: Effect
 "AuthEffects.login$" dispatched an invalid action:
 [{"payload":{"user":{"name":"User"}},"type":"[Auth] Login Success"}]

---
 modules/effects/src/effect_notification.ts | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/modules/effects/src/effect_notification.ts b/modules/effects/src/effect_notification.ts
index 1d33bab58f..21954d74a3 100644
--- a/modules/effects/src/effect_notification.ts
+++ b/modules/effects/src/effect_notification.ts
@@ -37,7 +37,7 @@ function reportInvalidActions(
         new Error(
           `Effect ${getEffectName(
             output
-          )} dispatched an invalid action: ${action}`
+          )} dispatched an invalid action: ${stringify(action)}`
         )
       );
     }
@@ -57,3 +57,11 @@ function getEffectName({
 
   return `"${sourceName}.${propertyName}${isMethod ? '()' : ''}"`;
 }
+
+function stringify(action: any) {
+  try {
+    return JSON.stringify(action);
+  } catch {
+    return action;
+  }
+}