Fix issue submitting batched events

src/LogDbClient.php

@@ -41,9 +41,10 @@ class LogDbClient
             case 'http':
                 $url = $this->server . "/api/logdb/v1/create-event";
                 if (!str_starts_with($url, "http")) $url = "http://{$url}";
-                $this->sendHttp(json_encode($event), $url);
+                $this->sendHttp(json_encode($events), $url);
                 break;
             case 'udp':
+                // TODO set batch id, the server is unaware that this is a batch.
                 foreach ($events as $event) {
                     if ($event instanceof LogEvent) {
                         [$ip,$port] = explode(":", $this->server, 2);

src/LogEvent.php

@@ -2,6 +2,7 @@
 
 namespace LogDb\Client;
 
+use DateTimeInterface;
 use JsonSerializable;
 
 class LogEvent implements JsonSerializable
@@ -14,21 +15,27 @@ class LogEvent implements JsonSerializable
         public readonly ?string $source = null,
         public readonly ?string $origin = null,
         public readonly array $context = [],
-        public readonly ?DateTime $date = null,
+        public readonly ?DateTimeInterface $date = null,
     )
     {
     }
 
     public function jsonSerialize(): mixed
     {
+        $context = $this->context;
+        $scope = $this->scope;
+        if (isset($context['_scope'])) {
+            $scope = $context['_scope'];
+            unset($context['_scope']);
+        }
         return [
             'brief'     => $this->brief,
             'detail'    => $this->detail,
             'level'     => $this->level,
-            'scope'     => $this->scope,
+            'scope'     => $scope,
             'source'    => $this->source,
             'origin'    => $this->origin,
-            'context'   => $this->context,
+            'context'   => $context,
             'date'      => $this->date?->format('Y-m-d H:i:s P'),
         ];
     }