Fix deletion of key/value over HTTP

bin/paramcli

@@ -87,7 +87,7 @@ function http_get(string $url, array $headers) {
 
 function http_post(string $url, array $headers, ?string $body = null) {
     global $opts,$http;
-    return $http->post("http://{$opts->server}/{$url}", $headers, $body);
+    return $http->post("http://{$opts->server}/{$url}", $headers, $body??'');
 }
 
 function action_get(object $opts) {
@@ -140,7 +140,7 @@ function action_purge(object $opts) {
     if (!$collection) {
         exit_error("Missing collection. Expected: purge {collection}");
     }
-    http_post($collection."/delete", [], null)->then(
+    http_post($collection."/purge", [], null)->then(
         function ($response) {
             echo $response->getBody()->getContents();
         },

src/Daemon.php

@@ -113,7 +113,6 @@ class Daemon
                     return Response::json([ 'error' => "Invalid request method" ]);
                 }
                 try {
-                    $ids = json_decode($request->getBody()->getContents(), true);
                     $this->opCollectionPurge($collectionName);
                 } catch (\Exception $e) {
                     return Response::json([ 'error' => "No such collection" ])->withStatus(404);
@@ -155,7 +154,7 @@ class Daemon
         try {
             $collection = $this->db->getCollection($collectionName);
             foreach ($ids as $id) {
-                if (is_int($id)) {
+                if (intval($id) > 0) {
                     $collection->deleteValue(intval($id));
                 } else {
                     $collection->deleteKey($id);