How do I redirect to the same page in Flask, generated by a GET request, following a POST request?

I am creating a webapp with Python/Flask. I am using blueprints.

Say I search for a book and end up at the URL /search?book=somebook&author=someauthor via a GET request. On that page I have buttons for each result which will save that result to the user's saved books. This would be a POST request. However, I want to return the user to the same search page with the same URL params.

So the flow is:

1. User submits a search and ends up on /search?book=somebook&author=someauthor
2. User clicks subscribe on one of the results. A POST saves the book to the user's saved books.
3. User ends up on /search?book=somebook&author=someauthor again and the search result page is repopulated.

I think, incorrectly, I want something like this:

@search_bp.route('/search', methods=["GET", "POST"]) def search(): if request.method == "POST": # save book to user's saved books # somehow end up back on the same page from here elif request.method == "GET": # use request.args to populate page with results return render_template("search.html", books=books) 

In my mind I want to return redirect(url_for("search_bp.search")) but somehow get the request.args back into the URL. Is my only choice to hardcode the URL, i.e. concatenate a string url = "/search?book=" + request.args.get("book") + "&author=" + request.args.get("author") so that I can return redirect(url)?