feat: add method getAllKeys, getKeysWithPrefix

.gitignore

@@ -8,3 +8,5 @@ vendor
 
 # project
 index.php
+package.json
+node_modules

README.md

@@ -38,6 +38,12 @@ $client->put('redis', '127.0.0.1:6579', ['lease' => 7587822882194199413]);
 // get key value
 $client->get('redis');
 
+// get all keys
+$client->getAllKeys();
+
+// get keys with prefix
+$client->getKeysWithPrefix('/v3/service/user/');
+
 // delete key
 $client->del('redis');
 

src/Client.php

@@ -186,6 +186,37 @@ public function get($key, array $options = [])
         return $body;
     }
 
+    /**
+     * get all keys
+     *
+     * @return array|\GuzzleHttp\Exception\BadResponseException
+     */
+    public function getAllKeys()
+    {
+        return $this->get("\0", ['range_end' => "\0"]);
+    }
+
+    /**
+     * get all keys with prefix
+     *
+     * @param  string $prefix
+     * @return array|\GuzzleHttp\Exception\BadResponseException
+     */
+    public function getKeysWithPrefix($prefix)
+    {
+        $prefix = trim($prefix);
+        if (!$prefix) {
+            return [];
+        }
+        $lastIndex = strlen($prefix) - 1;
+        $lastChar = $prefix[$lastIndex];
+        $nextAsciiCode = ord($lastChar) + 1;
+        $rangeEnd = $prefix;
+        $rangeEnd[$lastIndex] = chr($nextAsciiCode);
+
+        return $this->get($prefix, ['range_end' => $rangeEnd]);
+    }
+
     /**
      * Removes the specified key or range of keys
      *

tests/ClientTest.php

@@ -36,6 +36,18 @@ public function testPutAndRange()
         $this->assertEquals($value, $body[$this->key]);
     }
 
+    public function testGetAllKeys()
+    {
+        $body = $this->client->getAllKeys();
+        $this->assertNotEmpty($body);
+    }
+
+    public function testGetKeysWithPrefix()
+    {
+        $body = $this->client->getKeysWithPrefix('/');
+        $this->assertNotEmpty($body);
+    }
+
     public function testDeleteRange()
     {
         $this->client->del($this->key);