Enforce JSON validity (#996)

Author: jderusse

CHANGELOG.md

@@ -6,6 +6,10 @@
 
 - AWS api-change: Improve documentation
 
+### Fixed
+
+- Assert the provided Input can be json-encoded.
+
 ## 1.2.0
 
 ### Added

src/Input/PutLifecycleEventHookExecutionStatusInput.php

@@ -91,7 +91,7 @@ public function request(): Request
 
         // Prepare Body
         $bodyPayload = $this->requestBody();
-        $body = empty($bodyPayload) ? '{}' : json_encode($bodyPayload);
+        $body = empty($bodyPayload) ? '{}' : \json_encode($bodyPayload, 4194304);
 
         // Return the Request
         return new Request('POST', $uriString, $query, $headers, StreamFactory::create($body));