diff --git a/src/Concerns/DecoratesBoolQuery.php b/src/Concerns/DecoratesBoolQuery.php
index ab0754c..439b010 100644
--- a/src/Concerns/DecoratesBoolQuery.php
+++ b/src/Concerns/DecoratesBoolQuery.php
@@ -4,14 +4,13 @@
 
 use Closure;
 use Ensi\LaravelElasticQuery\Contracts\DSLAware;
-use Ensi\LaravelElasticQuery\Contracts\FunctionScoreItem;
-use Ensi\LaravelElasticQuery\Contracts\FunctionScoreOptions;
 use Ensi\LaravelElasticQuery\Contracts\MatchOptions;
 use Ensi\LaravelElasticQuery\Contracts\MoreLikeOptions;
 use Ensi\LaravelElasticQuery\Contracts\MoreLikeThis;
 use Ensi\LaravelElasticQuery\Contracts\MultiMatchOptions;
 use Ensi\LaravelElasticQuery\Contracts\WildcardOptions;
 use Ensi\LaravelElasticQuery\Filtering\BoolQueryBuilder;
+use Ensi\LaravelElasticQuery\Filtering\Criterias\FunctionScore;
 use Illuminate\Contracts\Support\Arrayable;
 use Illuminate\Support\Traits\ForwardsCalls;
 
@@ -161,12 +160,7 @@ public function whereBetween(string $field, mixed $from, mixed $to): static
         return $this;
     }
 
-    /**
-     * @param array<FunctionScoreItem> $functions
-     * @param ?DSLAware $query
-     * @param ?FunctionScoreOptions $options
-     */
-    public function addFunctionScore(array $functions, ?DSLAware $query = null, ?FunctionScoreOptions $options = null): static
+    public function orFunctionScore(FunctionScore $functionScore): static
     {
         $this->forwardCallTo($this->boolQuery(), __FUNCTION__, func_get_args());
 
diff --git a/src/Contracts/BoolQuery.php b/src/Contracts/BoolQuery.php
index 6029468..4dca250 100644
--- a/src/Contracts/BoolQuery.php
+++ b/src/Contracts/BoolQuery.php
@@ -3,6 +3,7 @@
 namespace Ensi\LaravelElasticQuery\Contracts;
 
 use Closure;
+use Ensi\LaravelElasticQuery\Filtering\Criterias\FunctionScore;
 use Illuminate\Contracts\Support\Arrayable;
 
 interface BoolQuery
@@ -47,12 +48,7 @@ public function whereMoreLikeThis(array $fields, MoreLikeThis $likeThis, ?MoreLi
 
     public function whereBetween(string $field, mixed $from, mixed $to): static;
 
-    /**
-     * @param array<FunctionScoreItem> $functions
-     * @param ?DSLAware $query
-     * @param ?FunctionScoreOptions $options
-     */
-    public function addFunctionScore(array $functions, ?DSLAware $query = null, ?FunctionScoreOptions $options = null): static;
+    public function orFunctionScore(FunctionScore $functionScore): static;
 
     public function pinned(array $ids, ?DSLAware $query = null): static;
 }
diff --git a/src/Contracts/FunctionScoreItem.php b/src/Contracts/FunctionScoreItem.php
index 836a526..8f7b580 100644
--- a/src/Contracts/FunctionScoreItem.php
+++ b/src/Contracts/FunctionScoreItem.php
@@ -7,16 +7,16 @@
 class FunctionScoreItem implements Arrayable
 {
     public function __construct(
-        private int $weight,
-        private Criteria $filter,
+        protected int $weight,
+        protected Criteria $filter,
     ) {
     }
 
     public function toArray(): array
     {
         return [
-            'weight' => $this->weight,
             'filter' => $this->filter->toDSL(),
+            'weight' => $this->weight,
         ];
     }
 }
diff --git a/src/Contracts/FunctionScoreOptions.php b/src/Contracts/FunctionScoreOptions.php
index 6c8176f..4e87c70 100644
--- a/src/Contracts/FunctionScoreOptions.php
+++ b/src/Contracts/FunctionScoreOptions.php
@@ -7,7 +7,7 @@
 
 class FunctionScoreOptions implements Arrayable
 {
-    public function __construct(private array $options = [])
+    public function __construct(protected array $options = [])
     {
     }
 
diff --git a/src/Contracts/FunctionScoreScript.php b/src/Contracts/FunctionScoreScript.php
new file mode 100644
index 0000000..198109e
--- /dev/null
+++ b/src/Contracts/FunctionScoreScript.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace Ensi\LaravelElasticQuery\Contracts;
+
+class FunctionScoreScript implements DSLAware
+{
+    public function __construct(
+        protected string $source,
+        protected array $params = [],
+    ) {
+    }
+
+    public function toDSL(): array
+    {
+        return ['script' => array_filter([
+            'source' => $this->source,
+            'params' => $this->params,
+        ])];
+    }
+}
diff --git a/src/Filtering/BoolQueryBuilder.php b/src/Filtering/BoolQueryBuilder.php
index d848506..b68b0e8 100644
--- a/src/Filtering/BoolQueryBuilder.php
+++ b/src/Filtering/BoolQueryBuilder.php
@@ -7,8 +7,6 @@
 use Ensi\LaravelElasticQuery\Contracts\BoolQuery;
 use Ensi\LaravelElasticQuery\Contracts\Criteria;
 use Ensi\LaravelElasticQuery\Contracts\DSLAware;
-use Ensi\LaravelElasticQuery\Contracts\FunctionScoreItem;
-use Ensi\LaravelElasticQuery\Contracts\FunctionScoreOptions;
 use Ensi\LaravelElasticQuery\Contracts\MatchOptions;
 use Ensi\LaravelElasticQuery\Contracts\MoreLikeOptions;
 use Ensi\LaravelElasticQuery\Contracts\MoreLikeThis;
@@ -268,14 +266,9 @@ public function whereBetween(string $field, mixed $from, mixed $to): static
         return $this;
     }
 
-    /**
-     * @param array<FunctionScoreItem> $functions
-     * @param ?DSLAware $query
-     * @param ?FunctionScoreOptions $options
-     */
-    public function addFunctionScore(array $functions, ?DSLAware $query = null, ?FunctionScoreOptions $options = null): static
+    public function orFunctionScore(FunctionScore $functionScore): static
     {
-        $this->should->add(new FunctionScore($functions, $query, $options));
+        $this->should->add($functionScore);
 
         return $this;
     }
diff --git a/src/Filtering/Criterias/FunctionScore.php b/src/Filtering/Criterias/FunctionScore.php
index 71f060a..8ecabfd 100644
--- a/src/Filtering/Criterias/FunctionScore.php
+++ b/src/Filtering/Criterias/FunctionScore.php
@@ -6,6 +6,7 @@
 use Ensi\LaravelElasticQuery\Contracts\DSLAware;
 use Ensi\LaravelElasticQuery\Contracts\FunctionScoreItem;
 use Ensi\LaravelElasticQuery\Contracts\FunctionScoreOptions;
+use Ensi\LaravelElasticQuery\Contracts\FunctionScoreScript;
 use stdClass;
 use Webmozart\Assert\Assert;
 
@@ -13,23 +14,35 @@ class FunctionScore implements Criteria
 {
     /**
      * @param array<FunctionScoreItem> $functions
-     * @param FunctionScoreOptions|null $options
      */
     public function __construct(
-        private array $functions,
-        private ?DSLAware $query = null,
-        private ?FunctionScoreOptions $options = null,
+        protected ?DSLAware $query = null,
+        protected ?FunctionScoreOptions $options = null,
+        protected array $functions = [],
+        protected ?FunctionScoreScript $scriptScore = null,
+        protected ?float $weight = null,
     ) {
-        array_map(fn ($function) => Assert::isInstanceOfAny($function, [FunctionScoreItem::class]), $functions);
+        Assert::allIsInstanceOfAny($functions, [FunctionScoreItem::class]);
     }
 
     public function toDSL(): array
     {
         $body = [
             'query' => $this->query?->toDSL() ?? ['match_all' => new stdClass()],
-            'functions' => array_map(fn (FunctionScoreItem $function) => $function->toArray(), $this->functions),
         ];
 
+        if ($this->functions) {
+            $body['functions'] = array_map(fn (FunctionScoreItem $function) => $function->toArray(), $this->functions);
+        }
+
+        if ($this->scriptScore) {
+            $body['script_score'] = $this->scriptScore->toDSL();
+        }
+
+        if (!is_null($this->weight)) {
+            $body['weight'] = $this->weight;
+        }
+
         if ($this->options) {
             $body = array_merge($this->options->toArray(), $body);
         }
diff --git a/tests/IntegrationTests/Search/SearchQueryIntegrationTest.php b/tests/IntegrationTests/Search/SearchQueryIntegrationTest.php
index b062cc2..05902eb 100644
--- a/tests/IntegrationTests/Search/SearchQueryIntegrationTest.php
+++ b/tests/IntegrationTests/Search/SearchQueryIntegrationTest.php
@@ -8,6 +8,7 @@
 use Ensi\LaravelElasticQuery\Contracts\MoreLikeThis;
 use Ensi\LaravelElasticQuery\Contracts\ScoreMode;
 use Ensi\LaravelElasticQuery\Contracts\SortableQuery;
+use Ensi\LaravelElasticQuery\Filtering\Criterias\FunctionScore;
 use Ensi\LaravelElasticQuery\Filtering\Criterias\Terms;
 use Ensi\LaravelElasticQuery\Tests\Data\Models\ProductsIndex;
 use Ensi\LaravelElasticQuery\Tests\IntegrationTestCase;
@@ -148,21 +149,19 @@
     /** @var SearchIntegrationTestCase $this */
 
     $result = ProductsIndex::query()
-        ->addFunctionScore(
-            [
-                new FunctionScoreItem(
-                    weight: 10,
-                    filter: new Terms(
-                        field: "tags",
-                        values: ["drinks"],
-                    ),
-                ),
-            ],
+        ->orFunctionScore(new FunctionScore(
             options: FunctionScoreOptions::make(
                 scoreMode: ScoreMode::SUM,
                 boostMode: BoostMode::SUM
-            )
-        )
+            ),
+            functions: [new FunctionScoreItem(
+                weight: 10,
+                filter: new Terms(
+                    field: "tags",
+                    values: ["drinks"],
+                ),
+            )],
+        ))
         ->get();
 
     assertCount(6, $result);