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Automatic browser reloading in FastAPI
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import os | |
import arel | |
from fastapi import FastAPI, Request | |
from fastapi.templating import Jinja2Templates | |
app = FastAPI() | |
templates = Jinja2Templates("templates") | |
if _debug := os.getenv("DEBUG"): | |
hot_reload = arel.HotReload(paths=[arel.Path(".")]) | |
app.add_websocket_route("/hot-reload", route=hot_reload, name="hot-reload") | |
app.add_event_handler("startup", hot_reload.startup) | |
app.add_event_handler("shutdown", hot_reload.shutdown) | |
templates.env.globals["DEBUG"] = _debug | |
templates.env.globals["hot_reload"] = hot_reload | |
@app.get("/") | |
def index(request: Request): | |
return templates.TemplateResponse("index.html", context={"request": request}) | |
# run: | |
# DEBUG=true uvicorn main:app --reload |
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fastapi | |
uvicorn[standard] | |
arel | |
jinja2 |
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<body> | |
{% block content %}{% endblock %} | |
<!-- Hot reload script --> | |
{% if DEBUG %} {{ hot_reload.script(url_for('hot-reload')) | safe }} {% endif | |
%} | |
</body> |
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{% extends "base.html" %} {% block content %} Hello, world! {% endblock %} |
It works in Safari (Version 17.2 (19617.1.17.11.9)) just fine.
@yanky2000 Just tested it in Safari 17.1—it also works. Removed the comment, thanks.
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It works in Safari (Version 17.2 (19617.1.17.11.9)) just fine.