Support image[] parameter for /v1/images/edits

docs/api/openai.md

@@ -677,7 +677,7 @@ Image Editing API. You provide a source image and a text prompt describing the d
 | Parameter | Required | Description | Status |
 |-----------|----------|-------------|--------|
 | `model` | Yes | The Stable Diffusion model to use (e.g., `Flux-2-Klein-4B`, `SD-Turbo`). | <sub>![Status](https://img.shields.io/badge/available-green)</sub> |
-| `image` | Yes | The source image file to edit (PNG). Sent as a file in multipart/form-data. | <sub>![Status](https://img.shields.io/badge/available-green)</sub> |
+| `image` / `image[]` | Yes | The source image file to edit (PNG). Sent as a file in multipart/form-data. | <sub>![Status](https://img.shields.io/badge/available-green)</sub> |
 | `prompt` | Yes | A text description of the desired edit. | <sub>![Status](https://img.shields.io/badge/available-green)</sub> |
 | `mask` | No | An optional mask image (PNG). White areas indicate regions to edit; black areas are preserved. | <sub>![Status](https://img.shields.io/badge/available-green)</sub> |
 | `size` | No | The size of the output image. Format: `WIDTHxHEIGHT` (e.g., `512x512`). Default: `512x512`. | <sub>![Status](https://img.shields.io/badge/available-green)</sub> |

src/cpp/server/server.cpp

@@ -2805,7 +2805,7 @@ bool Server::parse_n_from_form(const httplib::Request& req, httplib::Response& r
 
 bool Server::extract_image_from_form(const httplib::Request& req, httplib::Response& res, nlohmann::json& out) {
     for (const auto& file_pair : req.form.files) {
-        if (file_pair.first == "image") {
+        if (file_pair.first == "image" || file_pair.first == "image[]") {
             const auto& file = file_pair.second;
             out["image_data"] = utils::JsonUtils::base64_encode(file.content);
             out["image_filename"] = file.filename;

test/server_sd.py

@@ -664,6 +664,40 @@ def test_020_upscale_basic(self):
         )
         print(f"[OK] Upscale successful ({len(decoded)} bytes)")
 
+    def test_021_image_edit_array_field(self):
+        """Test basic image edit using array parameter syntax."""
+        png_bytes = create_minimal_png(256, 256)
+        print(f"[INFO] Sending image edit request with model {SD_MODEL}")
+
+        response = requests.post(
+            f"{self.base_url}/images/edits",
+            files={"image[]": ("test.png", io.BytesIO(png_bytes), "image/png")},
+            data={
+                "model": SD_MODEL,
+                "prompt": "A red circle",
+                "size": "256x256",
+                "n": "1",
+                "response_format": "b64_json",
+            },
+            timeout=TIMEOUT_MODEL_OPERATION,
+        )
+
+        self.assertEqual(
+            response.status_code,
+            200,
+            f"Image edit failed with status {response.status_code}: {response.text}",
+        )
+
+        result = response.json()
+        self.assertIn("data", result, "Response should contain 'data' field")
+        self.assertGreater(
+            len(result["data"]), 0, "Data should have at least one image"
+        )
+        b64_data = result["data"][0]["b64_json"]
+        decoded = base64.b64decode(b64_data)
+        self.assertTrue(decoded[:4] == b"\x89PNG", "Result should be a valid PNG")
+        print(f"[OK] Image edit successful ({len(decoded)} bytes)")
+
 
 if __name__ == "__main__":
     run_server_tests(