add Quart asgi template (#1138)

README.md

@@ -94,7 +94,7 @@ Let Piccolo scaffold you an ASGI web app, using Piccolo as the ORM:
 piccolo asgi new
 ```
 
-[Starlette](https://www.starlette.io/), [FastAPI](https://fastapi.tiangolo.com/), [BlackSheep](https://www.neoteroi.dev/blacksheep/), [Litestar](https://litestar.dev/), [Esmerald](https://esmerald.dev/) and [Lilya](https://lilya.dev) are currently supported.
+[Starlette](https://www.starlette.io/), [FastAPI](https://fastapi.tiangolo.com/), [BlackSheep](https://www.neoteroi.dev/blacksheep/), [Litestar](https://litestar.dev/), [Esmerald](https://esmerald.dev/), [Lilya](https://lilya.dev) and [Quart](https://quart.palletsprojects.com/en/latest/) are currently supported.
 
 ## Are you a Django user?
 

piccolo/apps/asgi/commands/new.py

@@ -17,6 +17,7 @@
     "litestar": ["litestar"],
     "esmerald": ["esmerald"],
     "lilya": ["lilya"],
+    "quart": ["quart", "quart_schema"],
 }
 ROUTERS = list(ROUTER_DEPENDENCIES.keys())
 

piccolo/apps/asgi/commands/templates/app/_quart_app.py.jinja

@@ -0,0 +1,119 @@
+import typing as t
+from http import HTTPStatus
+
+from hypercorn.middleware import DispatcherMiddleware
+from piccolo.engine import engine_finder
+from piccolo_admin.endpoints import create_admin
+from piccolo_api.crud.serializers import create_pydantic_model
+from quart import Quart
+from quart_schema import (
+    Info,
+    QuartSchema,
+    hide,
+    tag,
+    validate_request,
+    validate_response,
+)
+
+from home.endpoints import index
+from home.piccolo_app import APP_CONFIG
+from home.tables import Task
+
+
+app = Quart(__name__, static_folder="static")
+QuartSchema(app, info=Info(title="Quart API", version="0.1.0"))
+
+
+TaskModelIn: t.Any = create_pydantic_model(
+    table=Task,
+    model_name="TaskModelIn",
+)
+TaskModelOut: t.Any = create_pydantic_model(
+    table=Task,
+    include_default_columns=True,
+    model_name="TaskModelOut",
+)
+
+
+@app.get("/")
+@hide
+def home():
+    return index()
+
+
+@app.get("/tasks/")
+@validate_response(t.List[TaskModelOut])
+@tag(["Task"])
+async def tasks():
+    return await Task.select().order_by(Task._meta.primary_key, ascending=False)
+
+
+@app.post("/tasks/")
+@validate_request(TaskModelIn)
+@validate_response(TaskModelOut)
+@tag(["Task"])
+async def create_task(data: TaskModelIn):
+    task = Task(**data.model_dump())
+    await task.save()
+    return task.to_dict(), HTTPStatus.CREATED
+
+
+@app.put("/tasks/<int:task_id>/")
+@validate_request(TaskModelIn)
+@validate_response(TaskModelOut)
+@tag(["Task"])
+async def update_task(task_id: int, data: TaskModelIn):
+    task = await Task.objects().get(Task._meta.primary_key == task_id)
+    if not task:
+        return {}, HTTPStatus.NOT_FOUND
+
+    for key, value in data.model_dump().items():
+        setattr(task, key, value)
+
+    await task.save()
+
+    return task.to_dict(), HTTPStatus.OK
+
+
+@app.delete("/tasks/<int:task_id>/")
+@validate_response(TaskModelOut)
+@tag(["Task"])
+async def delete_task(task_id: int):
+    task = await Task.objects().get(Task._meta.primary_key == task_id)
+    if not task:
+        return {}, HTTPStatus.NOT_FOUND
+
+    await task.remove()
+
+    return {}, HTTPStatus.OK
+
+
+@app.before_serving
+async def open_database_connection_pool():
+    try:
+        engine = engine_finder()
+        await engine.start_connection_pool()
+    except Exception:
+        print("Unable to connect to the database")
+
+
+@app.after_serving
+async def close_database_connection_pool():
+    try:
+        engine = engine_finder()
+        await engine.close_connection_pool()
+    except Exception:
+        print("Unable to connect to the database")
+
+
+# enable the admin application using DispatcherMiddleware
+app = DispatcherMiddleware(  # type: ignore
+    {
+        "/admin": create_admin(
+            tables=APP_CONFIG.table_classes,
+            # Required when running under HTTPS:
+            # allowed_hosts=['my_site.com']
+        ),
+        "": app,
+    }
+)

piccolo/apps/asgi/commands/templates/app/app.py.jinja

@@ -10,4 +10,6 @@
     {% include '_esmerald_app.py.jinja' %}
 {% elif router == 'lilya' %}
     {% include '_lilya_app.py.jinja' %}
+{% elif router == 'quart' %}
+    {% include '_quart_app.py.jinja' %}
 {% endif %}

piccolo/apps/asgi/commands/templates/app/home/_quart_endpoints.py.jinja

@@ -0,0 +1,18 @@
+import os
+
+import jinja2
+
+from quart import Response
+
+ENVIRONMENT = jinja2.Environment(
+    loader=jinja2.FileSystemLoader(
+        searchpath=os.path.join(os.path.dirname(__file__), "templates")
+    )
+)
+
+
+def index():
+    template = ENVIRONMENT.get_template("home.html.jinja")
+    content = template.render(title="Piccolo + ASGI")
+    return Response(content)
+

piccolo/apps/asgi/commands/templates/app/home/endpoints.py.jinja

@@ -8,4 +8,6 @@
     {% include '_esmerald_endpoints.py.jinja' %}
 {% elif router == 'lilya' %}
     {% include '_lilya_endpoints.py.jinja' %}
+{% elif router == 'quart' %}
+    {% include '_quart_endpoints.py.jinja' %}
 {% endif %}

piccolo/apps/asgi/commands/templates/app/home/templates/home.html.jinja_raw

@@ -66,6 +66,11 @@
                 <li><a href="/admin/">Admin</a></li>
                 <li><a href="/tasks/">JSON endpoint</a></li>
             </ul>
+            <h3>Quart</h3>
+            <ul>
+                <li><a href="/admin/">Admin</a></li>
+                <li><a href="/docs">Swagger API</a></li>
+            </ul>
         </section>
     </div>
 {% endblock content %}