Filter Chat by Tags

ROQ Chat provides filtering chat by tags. This feature is available only in the Chat UI Component. If you use Next.js, using <Chat/> is much simpler.

Next.js

Assign Tag API

To illustrate, in a ROQ Next.js generated application, we can create an API that enables us to add a system bot for a new conversation and then assign tags of greeting and onboarding.

Let's create a file src\pages\api\chat\assign-tags.ts:

import type { NextApiRequest, NextApiResponse } from 'next';
import { getServerSession, withAuth } from '@roq/nextjs';
import { roqClient } from 'server/roq';
import { randomUUID } from 'crypto';
 
const EMAIL = "sysbot-1@reporter.x";
 
async function createUser() {
	return await roqClient.asSuperAdmin().createUser({
		user: {
			firstName: "System",
			lastName: "Bot",
			email: EMAIL,
			password: "sysb0t1",
			active: true,
			isOptedIn: true,
			tenantId: "8d5f33d1-9f55-4869-9c14-affe0020166a",
			reference: randomUUID(),
		},
	});
}
 
async function createConversationAndMessage(userId, sessionUserId, tags) {
	const conv = await roqClient.asUser(sessionUserId).createConversation({
		conversation: {
			title: userId === sessionUserId ? "System" : userId,
			ownerId: sessionUserId,
			isGroup: false,
			memberIds: [userId, sessionUserId],
			tags: tags
		},
	});
 
	await roqClient.asSuperAdmin().createMessage({
		message: {
			conversationId: conv.createConversation.id,
			body: `This conversation has the tags ${tags.join(', ')}`,
			authorId: userId,
			isSystem: true,
		},
	});
 
	return conv;
}
 
async function handler(req: NextApiRequest, res: NextApiResponse) {
	if (req.method !== 'POST') {
		return res.status(405).send({ message: 'Method not allowed' });
	}
 
	const session = getServerSession(req);
 
	if (!session.user) {
		return res.status(200).json({ success: false });
	}
 
	try {
		const userExist = await roqClient.asSuperAdmin().users({
			filter: { email: { equalTo: EMAIL } }
		});
 
		let userId;
 
		if (userExist.users.totalCount === 0) {
			const user = await createUser();
			userId = user.createUser.id;
		} else {
			userId = userExist.users.data[0]?.id;
		}
 
		const conv = await createConversationAndMessage(userId, session.roqUserId, req.body.tags);
 
		return res.status(200).json({ data: conv });
 
	} catch (e) {
		console.error(e);
		return res.status(200).json({ success: false });
	}
}
 
export default (req: NextApiRequest, res: NextApiResponse) => {
	return withAuth(req, res)(handler);
};

The assign-tags.ts file creates a new user if it doesn't exist:

// Creat a user to chat with
const user = await roqClient.asSuperAdmin().createUser({
    user: {
        firstName: "System",
        lastName: "Bot",
        email: "sysbot-1@reporter.x",
        password: "sysb0t1",
        active: true,
        isOptedIn: true,
        tenantId: "8d5f33d1-9f55-4869-9c14-affe0020166a",
        reference: randomUUID(),
      },
});

And then create a conversation and message from the user that we have created earlier:

// Create the conversation
const conv = await roqClient.asUser(session.roqUserId).createConversation({
      conversation: {
        title: user.createUser.firstName,
        ownerId: session.roqUserId,
        isGroup: false, //Not a group
        memberIds: [user.createUser.id, session.roqUserId],
        tags: tags,
      },
});
 
await roqClient.asSuperAdmin().createMessage({
    message: {
        conversationId: conv.createConversation.id,
        body: `This conversation has the tags ${tags.join(', ')}`,
        authorId: user.createUser.id,
        isSystem: true,
    },
});

Filtered Chat

The <Chat/> UI Component can be easily used to consume data from the API with React hooks. For example, to use tags in the chat.tsx page in the generated application:

// src\pages\chat.tsx
import { Chat, requireNextAuth } from '@roq/nextjs';
import { useCallback, useState, useEffect } from 'react';
import { useRouter } from 'next/router';
import AppLayout from 'layout/app-layout';
import { Box, Checkbox } from '@chakra-ui/react'; // Import the Checkbox component
import { routes } from 'routes';
 
function ChatPage() {
  const router = useRouter();
  const [tags, setTags] = useState<string[]>(['greeting', 'onboarding']);
  const [isTagApplied, setIsTagApplied] = useState(false);
 
  // Checkbox state and handler
  const [isChecked, setIsChecked] = useState(false);
  const handleCheckboxChange = (event: React.ChangeEvent<HTMLInputElement>) => {
    setIsChecked(event.target.checked);
  };
 
  const handleCreateConversationWithTags = useCallback(async () => {
    if (!isChecked) {
      setIsTagApplied(false);
      return;
    }
 
    try {
      const response = await fetch(routes.server.chat.createConversationWithTags, {
        method: 'POST',
        headers: {
          Accept: 'application/json',
          'Content-Type': 'application/json',
        },
        body: JSON.stringify({ tags }),
      });
 
      if (response.ok) {
        const result = await response.json();
        console.log(result);
        setIsTagApplied(true);
      } else {
        setIsTagApplied(false);
      }
    } catch (error) {
      setIsTagApplied(false);
    } finally {
      console.log('end of fetch');
    }
 
  }, [tags, isChecked]);
 
  useEffect(() => {
    handleCreateConversationWithTags();
  }, [handleCreateConversationWithTags, isChecked]); // add isChecked as a dependency
 
  return (
    <AppLayout>
      {/* Checkbox component */}
      <Checkbox isChecked={isChecked} onChange={handleCheckboxChange}>
        Apply Tags
      </Checkbox>
      <Box w="100%" h="80vh">
        <Chat fluid={true} tags={isTagApplied ? tags : undefined} />
      </Box>
    </AppLayout>
  );
}
 
export default requireNextAuth({
  redirectIfAuthenticated: false,
  redirectTo: '/',
})(ChatPage);

The tags={isTagApplied ? tags : undefined} will filter the conversations based on the tags. If the Apply Tags checkbox is unchecked, the isTagApplied flag is false. The chat will show all conversations:

chat with tags conversation

On the contrary, if the Apply Tags checkbox is checked, which means the isTagApplied flag is false. The chat will be filtered to the applied tags:

chat with tags conversation applied

On further development, you can setTags to other values.

Route Mapping

To consume the assign API we need to mapping it. Open or create a file src\routes.ts and add /api/chat/assign-tags as createConversationWithTags. For example:

export const routes = Object.freeze({
  frontend: {
    home: {
      index: '/app',
    },
    users: {
      index: '/users',
    },
    chat: {
      index: '/chat',
    }
  },
  server: {
    chat: {
      createConversationWithTags: "/api/chat/assign-tags"
    }
  },
});

Overview Overview