shellphone.app/app/messages/hooks/use-conversation.ts

import { useQuery } from "blitz";

import getConversationsQuery from "../queries/get-conversations";

export default function useConversation(recipient: string) {
	return useQuery(
		getConversationsQuery,
		{},
		{
			select(conversations) {
				if (!conversations[recipient]) {
					throw new Error("Conversation not found");
				}

				return conversations[recipient]!;
			},
			keepPreviousData: true,
		}
	);
}