feat(plugin): add granian

src/Litestar/App/__main__.py.jinja

@@ -1,18 +1,33 @@
 """Application entry point."""
 
+{% if litestar_granian %}
+from granian import Granian
+from granian.constants import Interfaces
+{% else %}
 import uvicorn
+{% endif %}
 
 from config import settings
 
 
 def main() -> None:
     """Run the application."""
+{% if litestar_granian %}
+    Granian(
+        "app:app",
+        address=settings.HOST,
+        port=settings.PORT,
+        interface=Interfaces.ASGI,
+        reload=settings.DEBUG,
+    ).serve()
+{% else %}
     uvicorn.run(
         "app:app",
         host=settings.HOST,
         port=settings.PORT,
         reload=settings.DEBUG,
     )
+{% endif %}
 
 
 if __name__ == "__main__":

src/Litestar/App/app.py.jinja

@@ -20,6 +20,9 @@ from .config import redis_store
 {% if litestar_saq %}
 from .config import saq
 {% endif %}
+{% if litestar_granian %}
+from litestar_granian import GranianPlugin
+{% endif %}
 
 @get("/health")
 async def health() -> dict[str, str]:
@@ -64,6 +67,9 @@ app = Litestar(
 {% endif %}
 {% if litestar_saq %}
         saq,
+{% endif %}
+{% if litestar_granian %}
+        GranianPlugin(),
 {% endif %}
     ],
 )

src/Litestar/Config/pyproject.toml.jinja

@@ -26,6 +26,9 @@ dependencies = [
 {% if litestar_saq %}
     "litestar-saq>=0.7.0",
 {% endif %}
+{% if litestar_granian %}
+    "litestar-granian>=0.14.2",
+{% endif %}
 ]
 
 [tool.ruff]

src/Litestar/Plugins/LitestarGranian/__init__.py

@@ -0,0 +1,27 @@
+"""Litestar Granian plugin."""
+
+from src.plugin import BasePlugin
+
+
+class LitestarGranianPlugin(BasePlugin):
+    """Granian ASGI server integration for Litestar."""
+
+    @property
+    def name(self) -> str:
+        """Get the plugin name.
+
+        Returns:
+            The plugin name.
+
+        """
+        return "Litestar Granian (Server)"
+
+    @property
+    def description(self) -> str:
+        """Get the plugin description.
+
+        Returns:
+            The plugin description.
+
+        """
+        return "Granian ASGI server integration for Litestar"

tests/test_generator.py

@@ -183,3 +183,58 @@ def test_litestar_generator_saq_rendering(tmp_path: Path) -> None:
     # Verify SAQ dependency in pyproject.toml
     pyproject_content = (tmp_path / "pyproject.toml").read_text()
     assert "litestar-saq>=0.7.0" in pyproject_content
+
+
+def test_litestar_generator_granian_context(tmp_path: Path) -> None:
+    """Verify Litestar generator template context values with Granian plugin enabled."""
+    config = ProjectConfig(
+        name="Granian Test",
+        framework=Framework.LITESTAR,
+        database=Database.NONE,
+        memory_store=MemoryStore.NONE,
+        plugins=["litestar_granian"],
+        docker=False,
+        docker_infra=False,
+    )
+
+    generator = LitestarGenerator(config, tmp_path)
+    context = generator._get_template_context()
+
+    assert context["litestar_granian"] is True
+
+
+def test_litestar_generator_granian_rendering(tmp_path: Path) -> None:
+    """Verify that Granian plugin templates are correctly rendered into the output directory."""
+    config = ProjectConfig(
+        name="Granian Plugin Test",
+        framework=Framework.LITESTAR,
+        database=Database.NONE,
+        memory_store=MemoryStore.NONE,
+        plugins=["litestar_granian"],
+        docker=False,
+        docker_infra=False,
+    )
+
+    generator = LitestarGenerator(config, tmp_path)
+    generator.generate()
+
+    # Verify base files
+    assert (tmp_path / "pyproject.toml").exists()
+    assert (tmp_path / "src" / "backend" / "app.py").exists()
+    assert (tmp_path / "src" / "backend" / "__main__.py").exists()
+
+    # Verify Granian plugin in app.py
+    app_content = (tmp_path / "src" / "backend" / "app.py").read_text()
+    assert "from litestar_granian import GranianPlugin" in app_content
+    assert "GranianPlugin()," in app_content
+
+    # Verify Granian in __main__.py (not uvicorn)
+    main_content = (tmp_path / "src" / "backend" / "__main__.py").read_text()
+    assert "from granian import Granian" in main_content
+    assert "from granian.constants import Interfaces" in main_content
+    assert "Granian(" in main_content
+    assert "uvicorn" not in main_content
+
+    # Verify Granian dependency in pyproject.toml
+    pyproject_content = (tmp_path / "pyproject.toml").read_text()
+    assert "litestar-granian>=0.14.2" in pyproject_content

tests/test_plugin.py

@@ -2,7 +2,7 @@
 
 from src.plugin import Plugin, discover_plugins
 
-MIN_PLUGIN_COUNT = 3
+MIN_PLUGIN_COUNT = 4
 
 
 def test_discover_litestar_plugins() -> None:
@@ -14,6 +14,7 @@ def test_discover_litestar_plugins() -> None:
     assert "advanced_alchemy" in ids
     assert "litestar_saq" in ids
     assert "litestar_vite" in ids
+    assert "litestar_granian" in ids
 
     for plugin in plugins:
         assert isinstance(plugin, Plugin)