Merge pull request #61 from Permissionless-Software-Foundation/dh-private-dm

feat(nostr): Added NIP04 private messaging

package-lock.json

@@ -13,7 +13,7 @@
         "@fortawesome/free-regular-svg-icons": "6.7.2",
         "@fortawesome/free-solid-svg-icons": "6.7.2",
         "@fortawesome/react-fontawesome": "0.2.2",
-        "@noble/hashes": "^1.8.0",
+        "@noble/hashes": "1.8.0",
         "axios": "0.27.2",
         "bch-dex-lib": "2.2.0",
         "bch-message-lib": "2.2.1",

package.json

@@ -7,7 +7,7 @@
     "@fortawesome/free-regular-svg-icons": "6.7.2",
     "@fortawesome/free-solid-svg-icons": "6.7.2",
     "@fortawesome/react-fontawesome": "0.2.2",
-    "@noble/hashes": "^1.8.0",
+    "@noble/hashes": "1.8.0",
     "axios": "0.27.2",
     "bch-dex-lib": "2.2.0",
     "bch-message-lib": "2.2.1",

src/components/app-body/index.js

@@ -29,6 +29,7 @@ import Feeds from './nostr/feeds/index.js'
 import ContentCreators from './nostr/content-creators/index.js'
 import UserDataReview from './user-data-review'
 import Offers from './offers'
+import NostrChat from './nostr-chat'
 function AppBody (props) {
   // Dependency injection through props
   const appData = props.appData
@@ -54,6 +55,7 @@ function AppBody (props) {
         <Route path='/content-creators' element={<ContentCreators appData={appData} />} />
         <Route path='/user-data/:tokenId' element={<UserDataReview appData={appData} />} />
         <Route path='/offers' element={<Offers appData={appData} />} />
+        <Route path='/nostr-chat' element={<NostrChat appData={appData} />} />
       </Routes>
       {/** Show in all paths except the servers view */}
       {/* {appData.currentPath !== '/servers' && <SelectServerButton linkTo='/servers' appData={appData} />} */}

src/components/app-body/nostr-chat/channel-item.js

@@ -0,0 +1,105 @@
+/*
+  Component for displaying channel item
+*/
+
+// Global npm libraries
+import React, { useCallback, useEffect, useState } from 'react'
+import { Spinner } from 'react-bootstrap'
+
+export default function ChannelItem (props) {
+  const { channel, selectedChannel, onChangeChannel, channelsData } = props
+  const [chInfo, setChInfo] = useState()
+
+  const getShortName = useCallback((str) => {
+    return str.slice(0, 8) + '...' + str.slice(-5)
+  }, [])
+
+  useEffect(() => {
+    if (!chInfo && channelsData[channel]) {
+      setChInfo(channelsData[channel])
+    }
+  }, [chInfo, channelsData, channel])
+
+  const handleClick = () => {
+    if (onChangeChannel) {
+      onChangeChannel(channel)
+    }
+  }
+
+  return (
+    <div
+      className={`d-flex align-items-center p-2 rounded-3 mb-2 cursor-pointer ${selectedChannel === channel ? 'bg-primary text-white' : ''}`}
+      style={{
+        cursor: 'pointer',
+        transition: 'all 0.2s ease',
+        backgroundColor: selectedChannel === channel ? '#0d6efd' : 'transparent',
+        border: '1px solid transparent'
+      }}
+      onClick={handleClick}
+      onMouseEnter={(e) => {
+        if (selectedChannel !== channel) {
+          e.currentTarget.style.backgroundColor = '#e9ecef'
+          e.currentTarget.style.borderColor = '#dee2e6'
+        }
+      }}
+      onMouseLeave={(e) => {
+        if (selectedChannel !== channel) {
+          e.currentTarget.style.backgroundColor = 'transparent'
+          e.currentTarget.style.borderColor = 'transparent'
+        }
+      }}
+    >
+      {/* Channel Avatar/Icon */}
+      <div className='me-3 flex-shrink-0 d-flex align-items-center'>
+        {chInfo?.picture
+          ? (
+            <img
+              src={chInfo.picture}
+              alt={chInfo.name || 'Channel'}
+              className='rounded-circle'
+              style={{ width: '32px', height: '32px' }}
+            />
+            )
+          : (
+            <div
+              className='rounded-circle d-flex align-items-center justify-content-center'
+              style={{
+                width: '32px',
+                height: '32px',
+                backgroundColor: '#e9ecef',
+                color: '#6c757d',
+                fontSize: '14px'
+              }}
+            >
+              #
+            </div>
+            )}
+      </div>
+
+      {/* Channel Info */}
+      <div className='flex-grow-1 min-w-0'>
+        <div
+          className={`${selectedChannel === channel ? 'text-white' : 'text-dark'} fw-medium`}
+          style={{ fontSize: '14px' }}
+        >
+          {chInfo?.name || getShortName(channel)}
+        </div>
+        {!chInfo?.name && (
+          <div
+            className={`small ${selectedChannel === channel ? 'text-white-50' : 'text-muted'}`}
+            style={{ fontSize: '12px' }}
+          >
+            Loading channel...
+          </div>
+        )}
+      </div>
+
+      {/* Loading indicator */}
+      {!chInfo?.name && (
+        <div className='ms-2'>
+          <Spinner animation='border' size='sm' />
+        </div>
+      )}
+    </div>
+  )
+}

src/components/app-body/nostr-chat/channel-list.js

@@ -0,0 +1,29 @@
+/*
+  Component for displaying the list of available channels
+*/
+
+// Global npm libraries
+import React from 'react'
+import { ListGroup } from 'react-bootstrap'
+import ChannelItem from './channel-item'
+function ChannelList (props) {
+  const { groupChannels, selectedChannel } = props
+
+  if (!groupChannels || groupChannels.length === 0) {
+    return (
+      <div className='text-muted small' style={{ fontStyle: 'italic' }}>
+        No channels available
+      </div>
+    )
+  }
+
+  return (
+    <ListGroup variant='flush' className='bg-transparent'>
+      {groupChannels.map((channel, i) => (
+        <ChannelItem key={`channel${i}`} channel={channel} selectedChannel={selectedChannel} {...props} />
+      ))}
+    </ListGroup>
+  )
+}
+
+export default ChannelList

src/components/app-body/nostr-chat/chat-header.js

@@ -0,0 +1,53 @@
+/*
+  Component for the chat header displaying chat info
+*/
+
+// Global npm libraries
+import React, { useState, useCallback, useEffect } from 'react'
+import { Spinner } from 'react-bootstrap'
+function ChatHeader (props) {
+  const { selectedChannel, channelsData, selectedChannelIsDm, profiles } = props
+  const [chInfo, setChInfo] = useState() // channel data
+  const getShortName = useCallback((str) => {
+    if (str.length < 20) return str
+    return str.slice(0, 4) + '...' + str.slice(-4)
+  }, [])
+
+  // Restore ch info
+  useEffect(() => {
+    setChInfo(null)
+  }, [selectedChannel])
+
+  // get channel info
+  useEffect(() => {
+    // Public channel
+    if (!chInfo && !selectedChannelIsDm && channelsData[selectedChannel]) {
+      setChInfo(channelsData[selectedChannel])
+    }
+    // Dm Channel
+    if (!chInfo && selectedChannelIsDm && profiles[selectedChannel]) {
+      setChInfo(profiles[selectedChannel])
+    }
+  }, [chInfo, channelsData, selectedChannel, profiles, selectedChannelIsDm])
+  return (
+    <div className='p-3 d-flex justify-content-between align-items-center' style={{ backgroundColor: '#ffffff' }}>
+      {chInfo &&
+        <div className='d-flex justify-content-center align-items-center'>
+          {chInfo.picture && <img src={chInfo.picture} alt={chInfo.name} style={{ width: '50px', marginRight: '10px', borderRadius: '50%' }} />}
+          <div className='flex-grow-1'>
+            <h5 className='mb-1 text-dark'>{getShortName(chInfo?.name || selectedChannel)}</h5>
+            <small className='text-muted'>{chInfo?.about || ''}</small>
+          </div>
+
+        </div>}
+
+      {!chInfo &&
+        <div className='flex-grow-1 ps-4'>
+          <Spinner animation='border' size='sm' />
+
+        </div>}
+    </div>
+  )
+}
+
+export default ChatHeader

src/components/app-body/nostr-chat/chat-main.js

@@ -0,0 +1,48 @@
+/*
+  Component for the main chat area
+*/
+
+// Global npm libraries
+import React from 'react'
+
+// Local libraries
+import ChatHeader from './chat-header'
+import MessageList from './message-list'
+import MessageInput from './message-input'
+
+function ChatMain (props) {
+  const { selectedChannel, messages } = props
+
+  return (
+    <>
+      {!selectedChannel && (
+        <div className='h-100 d-flex align-items-center justify-content-center' style={{ backgroundColor: '#f8f9fa' }}>
+          <div className='text-center text-muted'>
+            <h4>Select a channel to start chatting</h4>
+          </div>
+        </div>
+      )}
+
+      {selectedChannel && (
+        <div className='h-100 d-flex flex-column' style={{ backgroundColor: '#f8f9fa' }}>
+          {/* Chat Header */}
+          <div>
+            <ChatHeader selectedChannel={selectedChannel} {...props} />
+          </div>
+
+          {/* Messages Area */}
+          <div className='flex-grow-1 overflow-auto'>
+            <MessageList messages={messages} {...props} />
+          </div>
+
+          {/* Message Input */}
+          <div className='border-top border-tertiary'>
+            <MessageInput {...props} />
+          </div>
+        </div>
+      )}
+    </>
+  )
+}
+
+export default ChatMain

src/components/app-body/nostr-chat/chat-sidebar.js

@@ -0,0 +1,48 @@
+/*
+  Component for the chat sidebar channels
+*/
+
+// Global npm libraries
+import React from 'react'
+
+// Local libraries
+import ChannelList from './channel-list'
+import DMList from './dm-list'
+
+function ChatSidebar (props) {
+  const { dmChannels, profiles } = props
+
+  return (
+    <div className='h-100 d-flex flex-column' style={{ backgroundColor: '#ffffff', borderRight: '1px solid #e9ecef' }}>
+      {/* Channels Section */}
+      <div className='flex-grow-1 d-flex flex-column'>
+        <div className='p-4 flex-grow-1'>
+          <div className='d-flex justify-content-between align-items-center mb-3'>
+            <h5 className='mb-0 text-dark fw-semibold' style={{ fontSize: '16px', letterSpacing: '0.5px' }}>
+              Channels
+            </h5>
+          </div>
+          <ChannelList
+            {...props}
+          />
+
+          {/* DMs Section */}
+          <div className='mt-4 pt-4 border-top'>
+            <div className='d-flex justify-content-between align-items-center mb-3'>
+              <h5 className='mb-0 text-dark fw-semibold' style={{ fontSize: '16px', letterSpacing: '0.5px' }}>
+                DMs
+              </h5>
+            </div>
+            <DMList
+              dms={dmChannels}
+              profiles={profiles}
+              {...props}
+            />
+          </div>
+        </div>
+      </div>
+    </div>
+  )
+}
+
+export default ChatSidebar

src/components/app-body/nostr-chat/date-separator.js

@@ -0,0 +1,49 @@
+/*
+  Component for displaying date separators between message groups.
+*/
+
+// Global npm libraries
+import React from 'react'
+
+function DateSeparator (props) {
+  const { date } = props
+
+  // Format date for display
+  const formatDate = (dateString) => {
+    const date = new Date(dateString)
+    const today = new Date()
+    const yesterday = new Date(today)
+    yesterday.setDate(yesterday.getDate() - 1)
+
+    if (date.toDateString() === today.toDateString()) {
+      return 'Today'
+    } else if (date.toDateString() === yesterday.toDateString()) {
+      return 'Yesterday'
+    } else {
+      return date.toLocaleDateString('en-US', {
+        weekday: 'long',
+        year: 'numeric',
+        month: 'long',
+        day: 'numeric'
+      })
+    }
+  }
+
+  return (
+    <div className='text-center my-4'>
+      <div
+        className='d-inline-block px-3 py-1 rounded-pill'
+        style={{
+          backgroundColor: '#e9ecef',
+          color: '#6c757d',
+          fontSize: '12px',
+          fontWeight: '500'
+        }}
+      >
+        {formatDate(date)}
+      </div>
+    </div>
+  )
+}
+
+export default DateSeparator

src/components/app-body/nostr-chat/dm-item.js

@@ -0,0 +1,127 @@
+/*
+  Component for displaying direct message item
+*/
+
+// Global npm libraries
+import React, { useCallback, useEffect, useState } from 'react'
+import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
+import { faUser } from '@fortawesome/free-solid-svg-icons'
+
+export default function DMItem (props) {
+  const { dm, profiles, selectedChannel, onChangeChannel } = props
+  const { pubKey } = dm
+
+  const [profile, setProfile] = useState(profiles[pubKey])
+  const isSelected = selectedChannel === pubKey
+
+  useEffect(() => {
+    const profile = profiles[pubKey]
+
+    if (profile) {
+      setProfile(profile)
+    }
+  }, [profiles, pubKey])
+
+  const getShortName = useCallback((str) => {
+    if (!str || !str.startsWith('npub')) return str
+
+    const prefix = 'npub'
+    const first4 = str.slice(prefix.length, prefix.length + 4)
+    const last4 = str.slice(-4)
+
+    return `${prefix}:${first4}...${last4}`
+  }, [])
+
+  const handleClick = () => {
+    if (onChangeChannel) {
+      onChangeChannel(pubKey)
+    }
+  }
+
+  return (
+    <div
+      className={`d-flex align-items-center p-2 rounded-3 mb-2 cursor-pointer ${isSelected ? 'bg-primary text-white' : ''}`}
+      style={{
+        cursor: 'pointer',
+        transition: 'all 0.2s ease',
+        backgroundColor: isSelected ? '#0d6efd' : 'transparent',
+        border: '1px solid transparent'
+      }}
+      onClick={handleClick}
+      onMouseEnter={(e) => {
+        if (!isSelected) {
+          e.currentTarget.style.backgroundColor = '#e9ecef'
+          e.currentTarget.style.borderColor = '#dee2e6'
+        }
+      }}
+      onMouseLeave={(e) => {
+        if (!isSelected) {
+          e.currentTarget.style.backgroundColor = 'transparent'
+          e.currentTarget.style.borderColor = 'transparent'
+        }
+      }}
+    >
+      {/* User Avatar */}
+      <div className='me-3 flex-shrink-0 d-flex align-items-center'>
+        {profile?.picture
+          ? (
+            <img
+              src={profile.picture}
+              alt={`${profile.name || 'User'} Avatar`}
+              className='rounded-circle'
+              style={{ width: '32px', height: '32px' }}
+              onError={(e) => {
+                e.target.style.display = 'none'
+                e.target.nextSibling.style.display = 'flex'
+              }}
+            />
+            )
+          : <FontAwesomeIcon
+              icon={faUser}
+              className='rounded-circle d-flex align-items-center justify-content-center'
+              style={{
+                width: '32px',
+                height: '32px',
+                backgroundColor: profile?.picture ? 'transparent' : '#e9ecef',
+                color: profile?.picture ? 'transparent' : '#6c757d',
+                fontSize: '14px',
+                display: profile?.picture ? 'none' : 'flex'
+              }}
+            />}
+      </div>
+
+      {/* User Info */}
+      <div className='flex-grow-1 min-w-0'>
+        <div
+          className={`${isSelected ? 'text-white' : 'text-dark'} ${dm.unreadCount > 0 ? 'fw-bold' : 'fw-medium'}`}
+          style={{ fontSize: '14px' }}
+        >
+          {getShortName(profile?.name) || 'Unknown User'}
+        </div>
+        {/*         <div
+          className={`small ${isSelected ? 'text-white-50' : 'text-muted'} ${dm.unreadCount > 0 ? 'fw-bold' : ''}`}
+          style={{ fontSize: '12px' }}
+        >
+          No messages yet
+        </div> */}
+      </div>
+
+      {/* Unread indicator */}
+      {/* {dm.unreadCount > 0 && (
+        <div className='ms-2'>
+          <span
+            className='badge rounded-pill'
+            style={{
+              backgroundColor: isSelected ? '#ffffff' : '#dc3545',
+              color: isSelected ? '#0d6efd' : '#ffffff',
+              fontSize: '10px',
+              minWidth: '18px'
+            }}
+          >
+            {dm.unreadCount > 99 ? '99+' : dm.unreadCount}
+          </span>
+        </div>
+      )} */}
+    </div>
+  )
+}

src/components/app-body/nostr-chat/dm-list.js

@@ -0,0 +1,50 @@
+/*
+  Component for displaying a list of direct messages
+*/
+
+// Global npm libraries
+import React from 'react'
+import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
+import { faUser } from '@fortawesome/free-solid-svg-icons'
+import DMItem from './dm-item'
+import { Spinner } from 'react-bootstrap'
+
+function DMList (props) {
+  const { dmChannels, profiles, selectedChannel, onChangeChannel, dmListLoaded } = props
+
+  if (dmChannels.length === 0 && dmListLoaded) {
+    return (
+      <div className='text-center p-3'>
+        <div className='text-muted mb-2'>
+          <FontAwesomeIcon icon={faUser} style={{ fontSize: '24px', opacity: 0.5 }} />
+        </div>
+        <div className='text-muted small'>No direct messages yet</div>
+        <div className='text-muted small' style={{ fontSize: '11px' }}>
+          Start a conversation to see it here
+        </div>
+      </div>
+    )
+  }
+
+  return (
+    <div className='dm-list'>
+      {dmChannels.map((pubKey) => (
+        <DMItem
+          key={pubKey}
+          dm={{ pubKey }}
+          profiles={profiles}
+          selectedChannel={selectedChannel}
+          onChangeChannel={onChangeChannel}
+          {...props}
+        />
+      ))}
+      {!dmListLoaded && (
+        <div className='text-center'>
+          <Spinner animation='border' />
+        </div>
+      )}
+    </div>
+  )
+}
+
+export default DMList

src/components/app-body/nostr-chat/index.js

@@ -0,0 +1,389 @@
+/*
+  Component for Nostr Chat functionality
+*/
+
+// Global npm libraries
+import React, { useCallback, useEffect, useState, useRef } from 'react'
+import { Container, Row, Col } from 'react-bootstrap'
+import { RelayPool } from 'nostr'
+
+// Local libraries
+import ChatSidebar from './chat-sidebar'
+import ChatMain from './chat-main'
+import config from '../../../config'
+
+function NostrChat (props) {
+  const { appData } = props
+  const { nostrQueries, bchWalletState } = appData
+  const [messages, setMessages] = useState([])
+  const [loadedMessages, setLoadedMessages] = useState(false)
+  const [profiles, setProfiles] = useState({})
+  const [channelsData, setChannelsData] = useState({})
+  const [channelsLoaded, setChannelsLoaded] = useState(false)
+  const [groupChannels] = useState(config.chatsId)
+  const [dmChannels, setDmChannels] = useState([])
+  const [dmListLoaded, setDmListLoaded] = useState(false)
+
+  const [selectedChannel, setSelectedChannel] = useState(config.chatsId[0])
+  const [selectedChannelIsDm, setSelectedChannelIsDm] = useState(false)
+
+  const profilesRef = useRef({})
+  const dmChannelsRef = useRef([])
+
+  // Handle read messages
+  const onMsgRead = useCallback(async (ev) => {
+    try {
+      // console.log('onMsgRead() msg: ', msg)
+
+      // Update messages list
+      setMessages(current => {
+        // ignore existing messages
+        const exist = current.find(val => val.id === ev.id)
+        if (exist) return current
+
+        const newMsgs = [...current]
+        newMsgs.push(ev)
+
+        // Sort messages by timestamp
+        newMsgs.sort((a, b) => b.created_at - a.created_at)
+        return newMsgs.reverse()
+      })
+
+      // Fetch message owner profile
+      const pubKey = ev.pubkey
+      const existProfile = profilesRef.current[ev.pubkey]
+      if (existProfile) {
+        return
+      }
+      const npub = await appData.nostrQueries.hexToNpub(pubKey)
+
+      console.log(`Trying to get ${pubKey} profile.`)
+
+      const defaultProfile = { name: npub } // default profile
+      profilesRef.current[pubKey] = defaultProfile // update ref , to prevent fetch this profile again.
+      // Fetch profile
+      const nostrProfile = await appData.nostrQueries.getProfile(pubKey)
+
+      const profile = nostrProfile || defaultProfile
+      // add public key formats to profile object
+      profile.pubKey = pubKey
+      profile.npub = npub
+      // Update profiles state
+      setProfiles(currentProfiles => {
+        const newProfiles = { ...currentProfiles }
+        newProfiles[pubKey] = profile
+        profilesRef.current = newProfiles
+        return newProfiles
+      })
+    } catch (error) {
+      console.warn(error)
+    }
+  }, [appData, profilesRef])
+
+  const decryptMsg = useCallback(async ({ ev, pubKey }) => {
+    try {
+      const encryptedMsg = ev.content
+      const senderPubKey = pubKey
+
+      const { nostrKeyPair } = appData.bchWalletState
+      const { nostrQueries } = appData
+      const decryptData = {
+        receiverPrivKey: nostrKeyPair.privHex,
+        senderPubKey,
+        encryptedMsg
+      }
+
+      const decrptedMsg = await nostrQueries.decryptMsg(decryptData)
+
+      ev.content = decrptedMsg
+      onMsgRead(ev)
+    } catch (error) {
+      console.warn(error)
+    }
+  }, [appData, onMsgRead])
+
+  // Handle nostr pool for group channels
+  useEffect(() => {
+    // fetch messages when channel selected and channel metadata are loaded
+    if (!selectedChannel || !channelsLoaded || selectedChannelIsDm) return
+
+    // Load messages for group channel
+    const relays = nostrQueries.relays
+    if (relays.length === 0) {
+      return
+    }
+
+    const pool = RelayPool(relays)
+
+    // const pool = RelayPool([config.nostrRelay])
+    pool.on('open', relay => {
+      relay.subscribe('REQ', { limit: 10, kinds: [42], '#e': [selectedChannel] })
+    })
+
+    pool.on('eose', relay => {
+      if (!selectedChannelIsDm) {
+        setLoadedMessages(true)
+      }
+    })
+
+    pool.on('event', (relay, subId, ev) => {
+      console.log('post retrieved from ', relay.url, ev.content)
+      onMsgRead(ev)
+    })
+
+    return () => {
+      // Close pool on component unmount or selected channel changes
+      console.log('Close existing pool for group channel')
+      pool.close()
+    }
+  }, [onMsgRead, selectedChannel, selectedChannelIsDm, nostrQueries, channelsLoaded])
+
+  // Handle nostr pool for dm channels
+  useEffect(() => {
+    // fetch messages when channel selected and channel metadata are loaded
+    console.log('selectedChannel', selectedChannel)
+    console.log('selectedChannelIsDm', selectedChannelIsDm)
+
+    if (!selectedChannel || !selectedChannelIsDm) return
+    const { nostrKeyPair } = bchWalletState
+    const dmPubKey = selectedChannel
+    console.log('dmPubKey', selectedChannel)
+
+    // Load messages for group channel
+    const relays = nostrQueries.relays
+    if (relays.length === 0) {
+      return
+    }
+
+    const pool = RelayPool(relays)
+
+    // const pool = RelayPool([config.nostrRelay])
+    pool.on('open', relay => {
+      relay.subscribe('REQ', [
+        { limit: 10, kinds: [4], '#p': [nostrKeyPair.pubHex], authors: [dmPubKey] }, // received messages
+        { limit: 10, kinds: [4], '#p': [dmPubKey], authors: [nostrKeyPair.pubHex] } // sent messages
+      ])
+    })
+
+    pool.on('eose', relay => {
+      if (selectedChannelIsDm) {
+        setLoadedMessages(true)
+      }
+    })
+
+    pool.on('event', (relay, subId, ev) => {
+      console.log('post retrieved from ', relay.url, ev.content)
+      // decrpt message
+      if (ev.pubkey === nostrKeyPair.pubHex) {
+        // Sent messages
+        decryptMsg({ ev, pubKey: dmPubKey })
+      } else {
+        // Received messages
+        decryptMsg({ ev, pubKey: ev.pubkey })
+      }
+    })
+
+    return () => {
+      // Close pool on component unmount or selected channel changes
+      console.log('Close existing pool for private channel')
+      pool.close()
+    }
+  }, [onMsgRead, selectedChannel, selectedChannelIsDm, nostrQueries, bchWalletState, decryptMsg])
+
+  const handleIncomingDms = useCallback(async (pubKey) => {
+    try {
+      if (!dmListLoaded) return
+      const exist = dmChannelsRef.current.find(val => val === pubKey)
+      if (exist) return
+
+      let profile = await nostrQueries.getProfile(pubKey)
+      const npub = nostrQueries.hexToNpub(pubKey)
+      if (!profile) profile = { name: npub }
+      // add public key formats to profile object
+      profile.pubKey = pubKey
+      profile.npub = npub
+      setProfiles(currentProfiles => {
+        const newProfiles = { ...currentProfiles }
+        newProfiles[pubKey] = profile
+        profilesRef.current = newProfiles
+        return newProfiles
+      })
+      setDmChannels(currentChs => {
+        const newChs = [...currentChs]
+        newChs.push(profile.pubKey)
+        dmChannelsRef.current = newChs
+        return newChs
+      })
+      setChannelsData(currentChs => {
+        const newChs = { ...currentChs }
+        newChs[profile.pubKey] = profile
+        return newChs
+      })
+    } catch (error) {
+      console.warn(error)
+    }
+  }, [nostrQueries, dmListLoaded])
+
+  // Keep live NPI04  for new dms
+  useEffect(() => {
+    if (!dmListLoaded || !channelsLoaded) return
+    const { bchWalletState } = appData
+    const { nostrKeyPair } = bchWalletState
+    const relays = nostrQueries.relays
+
+    const pool = RelayPool(relays)
+    // const pool = RelayPool([config.nostrRelay])
+    pool.on('open', relay => {
+      relay.subscribe('REQ', [
+        { limit: 0, kinds: [4], '#p': [nostrKeyPair.pubHex] } // received messages
+      ])
+    })
+
+    pool.on('event', (relay, subId, ev) => {
+      console.log('New message received', ev)
+      handleIncomingDms(ev.pubkey)
+    })
+
+    return () => {
+      // Close pool on component unmount or selected channel changes
+      console.log('Close existing pool for private channel')
+      pool.close()
+    }
+  }, [handleIncomingDms, appData, nostrQueries, dmListLoaded, channelsLoaded])
+
+  // Load Dm channels
+  useEffect(() => {
+    const loadCurrentDms = async () => {
+      const { nostrKeyPair } = bchWalletState
+      const dms = await appData.nostrQueries.getDms(nostrKeyPair.pubHex)
+      console.log('dm list', dms)
+
+      for (let i = 0; i < dms.length; i++) {
+        const pubKey = dms[i]
+        const npub = await appData.nostrQueries.hexToNpub(pubKey)
+
+        const defaultProfile = { name: npub } // default profile
+        profilesRef.current[pubKey] = defaultProfile // update ref , to prevent fetch this profile again.
+        // Fetch profile
+        const nostrProfile = await appData.nostrQueries.getProfile(pubKey)
+
+        const profile = nostrProfile || defaultProfile
+        // add public key formats to profile object
+        profile.pubKey = pubKey
+        profile.npub = npub
+        // Update profiles state
+        setProfiles(currentProfiles => {
+          const newProfiles = { ...currentProfiles }
+          newProfiles[pubKey] = profile
+          profilesRef.current = newProfiles
+          return newProfiles
+        })
+      }
+      setDmChannels(dms)
+      setDmListLoaded(true)
+      dmChannelsRef.current = dms
+    }
+
+    loadCurrentDms()
+  }, [bchWalletState, appData.nostrQueries])
+
+  // Load public channels data
+  useEffect(() => {
+    const loadChData = async () => {
+      const loadedChannels = []
+      for (let i = 0; i < groupChannels.length; i++) {
+        const ch = groupChannels[i]
+
+        const exist = loadedChannels.find((val) => { return val === ch })
+        if (exist) { continue }
+        // Fech profile.
+        let channelData = await appData.nostrQueries.getChannelInfo(ch)
+        console.log('channelData', channelData)
+        // Set short id as name
+        if (!channelData) channelData = { name: ch.slice(0, 8) + '...' + ch.slice(-5) }
+        loadedChannels.push(channelData)
+
+        // Update channels data state
+        setChannelsData(currentChs => {
+          const newChs = { ...currentChs }
+          newChs[ch] = channelData
+          return newChs
+        })
+        setChannelsLoaded(true)
+      }
+    }
+
+    // loadMessages()
+    loadChData()
+  }, [selectedChannel, appData, groupChannels])
+
+  const addPrivateMessage = async (profile) => {
+    try {
+      const exist = dmChannels.find(val => val === profile.pubKey)
+      setMessages([])
+      setLoadedMessages(false)
+      onChangeChannel(profile.pubKey)
+      if (exist) return
+      setDmChannels(currentChs => {
+        const newChs = [...currentChs]
+        newChs.push(profile.pubKey)
+        dmChannelsRef.current = newChs
+        return newChs
+      })
+      setChannelsData(currentChs => {
+        const newChs = { ...currentChs }
+        newChs[profile.pubKey] = profile
+        return newChs
+      })
+    } catch (error) {
+      console.warn(error)
+    }
+  }
+
+  // Reset states on change channel
+  const onChangeChannel = useCallback((ch) => {
+    if (selectedChannel === ch) return
+    setSelectedChannelIsDm(!!profiles[ch])
+    setMessages([])
+    setLoadedMessages(false)
+    setSelectedChannel(ch)
+  }, [selectedChannel, profiles])
+
+  return (
+    <>
+      <Container fluid className='h-100 p-0 mb-5 '>
+        <Row className='h-100 g-0'>
+          <Col xs={12} md={4} lg={3} className='h-100'>
+            <ChatSidebar
+              groupChannels={groupChannels}
+              dmChannels={dmChannels}
+              selectedChannel={selectedChannel}
+              selectedChannelIsDm={selectedChannelIsDm}
+              profiles={profiles}
+              channelsData={channelsData}
+              onChangeChannel={onChangeChannel}
+              dmListLoaded={dmListLoaded && channelsLoaded}
+              {...props}
+            />
+          </Col>
+          <Col xs={12} md={8} lg={9} className='h-100 pe-2'>
+            <ChatMain
+              loadedMessages={loadedMessages}
+              selectedChannel={selectedChannel}
+              selectedChannelIsDm={selectedChannelIsDm}
+              messages={messages}
+              profiles={profiles}
+              channelsData={channelsData}
+              dmListLoaded={dmListLoaded && channelsLoaded}
+              onChangeChannel={onChangeChannel}
+              addPrivateMessage={addPrivateMessage}
+              {...props}
+            />
+          </Col>
+        </Row>
+      </Container>
+    </>
+  )
+}
+
+export default NostrChat

src/components/app-body/nostr-chat/message-input.js

@@ -0,0 +1,190 @@
+/*
+  Component for the message input area
+*/
+
+// Global npm libraries
+import React, { useState, useEffect } from 'react'
+import { Form, Button, InputGroup } from 'react-bootstrap'
+import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
+import { faPaperPlane } from '@fortawesome/free-solid-svg-icons'
+import { finalizeEvent } from 'nostr-tools/pure'
+import { hexToBytes } from '@noble/hashes/utils' // already an installed dependency
+import { Relay } from 'nostr-tools/relay'
+
+function MessageInput (props) {
+  const { appData, selectedChannel, profiles } = props
+  const { bchWalletState, writeRelays, nostrQueries } = appData
+  const [isDm, setIsDm] = useState(false)
+  const [dmProfile, setDmProfile] = useState(false)
+  const [message, setMessage] = useState('')
+  const [onFetch, setOnFetch] = useState(false)
+
+  // Define input type between private or public
+  useEffect(() => {
+    const dmTo = profiles[selectedChannel]
+    setIsDm(!!dmTo)
+    setDmProfile(dmTo)
+  }, [selectedChannel, profiles])
+
+  const handleSubmitPrivate = async (e) => {
+    e.preventDefault()
+
+    try {
+      setOnFetch(true)
+      console.log('dm To : ', dmProfile)
+
+      const { nostrKeyPair } = bchWalletState
+      // Convert private key to binary
+      const privateKeyBin = hexToBytes(nostrKeyPair.privHex)
+
+      const encryptedMsg = await nostrQueries.encryptMsg({
+        senderPrivKey: nostrKeyPair.privHex,
+        receiverPubKey: dmProfile?.pubKey,
+        message
+      })
+
+      console.log('encryptedMsg', encryptedMsg)
+      // Generate a post.
+      const eventTemplate = {
+        kind: 4,
+        created_at: Math.floor(Date.now() / 1000),
+        tags: [['p', dmProfile.pubKey]],
+        content: encryptedMsg
+      }
+      console.log(`eventTemplate: ${JSON.stringify(eventTemplate, null, 2)}`)
+
+      // Sign the post
+      const signedEvent = finalizeEvent(eventTemplate, privateKeyBin)
+      console.log('signedEvent: ', signedEvent)
+
+      // Publish the post to each relay.
+      for (let i = 0; i < writeRelays.length; i++) {
+        const relayUrl = writeRelays[i]
+
+        try {
+          // Connect to a relay.
+          const relay = await Relay.connect(relayUrl)
+          console.log(`connected to ${relay.url}`)
+
+          // Publish the message to the relay.
+          const result = await relay.publish(signedEvent)
+          console.log('result: ', result)
+
+          // Close the connection to the relay.
+          relay.close()
+        } catch (err) {
+          console.warn(`Skipping publishing to ${relayUrl} due to error: ${err}`)
+        }
+      }
+      setMessage('')
+      setOnFetch(false)
+    } catch (error) {
+      console.warn(error)
+      setOnFetch(false)
+    }
+  }
+
+  // Post on nostr network
+  const handleSubmitPublic = async (e) => {
+    e.preventDefault()
+    try {
+      setOnFetch(true)
+
+      const { nostrKeyPair } = bchWalletState
+
+      // Convert private key to binary
+      const privateKeyBin = hexToBytes(nostrKeyPair.privHex)
+
+      // Relay list
+      // const psf = 'wss://nostr-relay.psfoundation.info'
+
+      // Generate a post.
+      const eventTemplate = {
+        kind: 42,
+        created_at: Math.floor(Date.now() / 1000),
+        tags: [['e', selectedChannel, 'root']],
+        content: message
+      }
+      console.log(`eventTemplate: ${JSON.stringify(eventTemplate, null, 2)}`)
+
+      // Sign the post
+      const signedEvent = finalizeEvent(eventTemplate, privateKeyBin)
+      console.log('signedEvent: ', signedEvent)
+
+      // Publish the post to each relay.
+      for (let i = 0; i < writeRelays.length; i++) {
+        const relayUrl = writeRelays[i]
+
+        try {
+          // Connect to a relay.
+          const relay = await Relay.connect(relayUrl)
+          console.log(`connected to ${relay.url}`)
+
+          // Publish the message to the relay.
+          const result = await relay.publish(signedEvent)
+          console.log('result: ', result)
+
+          // Close the connection to the relay.
+          relay.close()
+        } catch (err) {
+          console.warn(`Skipping publishing to ${relayUrl} due to error: ${err}`)
+        }
+      }
+      setMessage('')
+      setOnFetch(false)
+    } catch (error) {
+      console.warn(error)
+      setOnFetch(false)
+    }
+  }
+
+  const onChange = (e) => {
+    setMessage(e.target.value)
+  }
+  return (
+    <div className='p-3' style={{ backgroundColor: '#ffffff' }}>
+      <Form onSubmit={isDm ? handleSubmitPrivate : handleSubmitPublic}>
+        <InputGroup>
+          <Form.Control
+            as='textarea'
+            rows={3}
+            placeholder='Type a message...'
+            className='border-1 bg-transparent text-dark'
+            style={{
+              backgroundColor: '#f8f9fa',
+              border: '4px solid rgb(235, 232, 232)',
+              borderRadius: '12px',
+              padding: '12px 16px',
+              fontSize: '14px',
+              resize: 'none',
+              minHeight: '60px',
+              maxHeight: '120px'
+            }}
+            value={message}
+            onChange={onChange}
+            disabled={onFetch}
+          />
+
+          <Button
+            type='submit'
+            variant='link'
+            className='text-dark border-0 bg-transparent ms-2'
+            style={{
+              color: '#6c757d',
+              transition: 'color 0.2s ease',
+              alignSelf: 'flex-end',
+              marginBottom: '8px'
+            }}
+            title='Send message'
+            disabled={onFetch}
+
+          >
+            <FontAwesomeIcon icon={faPaperPlane} />
+          </Button>
+        </InputGroup>
+      </Form>
+    </div>
+  )
+}
+
+export default MessageInput

src/components/app-body/nostr-chat/message-item.js

@@ -0,0 +1,123 @@
+/*
+  Component for displaying a single chat message
+*/
+
+// Global npm libraries
+import React, { useEffect, useState } from 'react'
+import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
+import { faUser } from '@fortawesome/free-solid-svg-icons'
+import { Spinner } from 'react-bootstrap'
+import NostrFormat from '../../app-body/nostr/nostr-format'
+import ProfileMenu from './profile-menu'
+
+function MessageItem (props) {
+  const { message, profiles, selectedChannel } = props
+  const [profile, setProfile] = useState(null)
+
+  const [isDm, setIsDm] = useState(false)
+
+  // Define type between private or public
+  useEffect(() => {
+    const dmTo = profiles[selectedChannel]
+    setIsDm(!!dmTo)
+  }, [selectedChannel, profiles])
+
+  // Format timestamp
+  const formatTime = (timestamp) => {
+    return new Date(timestamp).toLocaleTimeString([], {
+      hour: '2-digit',
+      minute: '2-digit',
+      hour12: true
+    })
+  }
+
+  useEffect(() => {
+    if (profiles[message.pubkey]) {
+      setProfile(profiles[message.pubkey])
+    }
+  }, [profiles, message])
+
+  return (
+    <div className='mb-3 d-flex align-items-start'>
+      {/* Message Content */}
+      <div className='flex-grow-1'>
+        <div
+          className='text-dark p-3 rounded-3'
+          style={{
+            backgroundColor: '#ffffff',
+            border: '1px solid #e9ecef',
+            boxShadow: '0 1px 2px rgba(0, 0, 0, 0.05)',
+            maxWidth: '85%',
+            wordWrap: 'break-word'
+          }}
+        >
+          <div className='d-flex align-items-center mb-2'>
+            {/* Avatar */}
+            <div className='me-2 flex-shrink-0'>
+              {profile?.picture
+                ? (
+                  <ProfileMenu
+                    profile={profile}
+                    isDm={isDm}
+                    {...props}
+                  >
+                    <img
+                      src={profile.picture}
+                      alt={`${profile.name} Avatar`}
+                      className='rounded-circle'
+                      style={{ width: '24px', height: '24px' }}
+                      onError={(e) => {
+                        e.target.style.display = 'none'
+                        e.target.nextSibling.style.display = 'block'
+                      }}
+                    />
+                  </ProfileMenu>
+                  )
+                : (
+                  <ProfileMenu
+                    profile={profile}
+                    isDm={isDm}
+                    {...props}
+
+                  >
+                    <FontAwesomeIcon
+                      icon={faUser}
+                      className='rounded-circle d-flex align-items-center justify-content-center'
+                      style={{
+                        width: '24px',
+                        height: '24px',
+                        backgroundColor: '#e9ecef',
+                        color: '#6c757d',
+                        fontSize: '12px',
+                        display: message.avatar ? 'none' : 'flex'
+                      }}
+                    />
+                  </ProfileMenu>
+                  )}
+            </div>
+            {!profile && <span className='fw-bold text-dark me-2'>{message.pubkey}<Spinner animation='border' size='sm' /></span>}
+            {profile && profile.name && (
+              <ProfileMenu
+                profile={profile}
+                isDm={isDm}
+                {...props}
+              >
+                <span className='fw-bold text-dark me-2'>
+                  {profile.name}
+                </span>
+              </ProfileMenu>
+            )}
+
+            <small className='text-muted'>{formatTime(message.created_at * 1000)}</small>
+          </div>
+          <div style={{ lineHeight: '1.4', wordBreak: 'break-all' }}>
+            <NostrFormat content={message.content} />
+
+          </div>
+        </div>
+      </div>
+    </div>
+  )
+}
+
+export default MessageItem

src/components/app-body/nostr-chat/message-list.js

@@ -0,0 +1,109 @@
+/*
+  Component for displaying the list of chat messages
+*/
+
+// Global npm libraries
+import React, { useEffect, useState, useCallback, useRef } from 'react'
+
+// Local libraries
+import MessageItem from './message-item'
+import DateSeparator from './date-separator'
+import { Spinner } from 'react-bootstrap'
+
+function MessageList (props) {
+  const { messages, loadedMessages } = props
+  const [groupedMessages, setGroupedMessages] = useState([])
+  const msgContainerRef = useRef()
+  // Group messages by date
+  const groupMessagesByDate = useCallback((messages) => {
+    const grouped = {}
+    messages.forEach((message, i) => {
+      const date = new Date(message.created_at * 1000).toDateString()
+      if (!grouped[date]) {
+        grouped[date] = []
+      }
+      grouped[date].push(message)
+    })
+
+    return grouped
+  }, [])
+
+  useEffect(() => {
+    const grouped = groupMessagesByDate(messages)
+
+    setGroupedMessages(grouped)
+
+    // Scroll to end of the message container.
+    // Wait few seconds before load render.
+    setTimeout(() => {
+      if (msgContainerRef.current) {
+        msgContainerRef.current.scrollTo({
+          top: msgContainerRef.current.scrollHeight - msgContainerRef.current.clientHeight,
+          behavior: 'smooth'
+        })
+        msgContainerRef.current = null // scroll one time
+      }
+    }, 1000)
+  }, [messages, groupMessagesByDate])
+
+  return (
+    <>
+      <style>
+        {`
+          .hide-scrollbar::-webkit-scrollbar {
+            width: 0 !important;
+            display: none !important;
+          }
+          .hide-scrollbar {
+            -ms-overflow-style: none !important;
+            scrollbar-width: none !important;
+          }
+        `}
+      </style>
+      <div
+        className='h-100 overflow-auto hide-scrollbar'
+        style={{
+          backgroundColor: '#f8f9fa',
+          height: 'calc(100vh - 200px)',
+          maxHeight: 'calc(100vh - 200px)'
+        }}
+      >
+        {loadedMessages && (!messages || messages.length === 0) && (
+          <div className='h-100 d-flex align-items-center justify-content-center ' style={{ minHeight: '50vh' }}>
+            <div className='text-center text-muted'>
+              <p>No messages yet. Start the conversation!</p>
+            </div>
+          </div>
+        )}
+
+        {loadedMessages && messages && messages.length > 0 && (
+          <div ref={msgContainerRef} className='p-3' style={{ overflowY: 'auto', maxHeight: '50vh' }}>
+            {Object.entries(groupedMessages).map(([date, dateMessages]) => (
+              <div key={date}>
+                <DateSeparator date={date} />
+                {dateMessages.map((message, index) => (
+                  <MessageItem
+                    key={`${message.id}-${index}`}
+                    message={message}
+                    totalMessages={messages.length}
+                    messageIndex={index}
+                    {...props}
+
+                  />
+                ))}
+              </div>
+            ))}
+          </div>
+        )}
+        {!loadedMessages &&
+          <div className='p-3' style={{ minHeight: '50vh', display: 'flex', justifyContent: 'center', alignItems: 'center' }}>
+            <Spinner animation='border' size='md' />
+
+          </div>}
+
+      </div>
+    </>
+  )
+}
+
+export default MessageList

src/components/app-body/nostr-chat/profile-menu.js

@@ -0,0 +1,66 @@
+/*
+  Component for displaying a profile menu
+*/
+
+// Global npm libraries
+import React from 'react'
+import Dropdown from 'react-bootstrap/Dropdown'
+import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
+import { faMessage, faUser } from '@fortawesome/free-solid-svg-icons'
+
+function ProfileMenu (props) {
+  const { profile, children, addPrivateMessage, isDm, dmListLoaded } = props
+
+  const handlePrivateMessage = () => {
+    addPrivateMessage(profile)
+  }
+
+  const handleUserProfile = () => {
+    const profileUrl = `${window.location.origin}/profile/${profile.npub}#single-view`
+    window.open(profileUrl, '_blank')
+  }
+
+  return (
+    <>
+      <style>
+        {`
+          .dropdown-toggle-no-arrow::after {
+            display: none !important;
+          }
+        `}
+      </style>
+
+      <Dropdown>
+        <Dropdown.Toggle
+          as='div'
+          className='d-inline-block dropdown-toggle-no-arrow'
+          style={{
+            cursor: 'pointer',
+            '--bs-btn-padding-x': '0',
+            '--bs-btn-padding-y': '0'
+          }}
+        >
+          {children}
+        </Dropdown.Toggle>
+
+        <Dropdown.Menu className='shadow-sm' style={{ minWidth: '180px' }}>
+          <Dropdown.Header className='text-muted fw-bold'>
+            Profile Options
+          </Dropdown.Header>
+          {!isDm && (
+            <Dropdown.Item onClick={handlePrivateMessage} disabled={!dmListLoaded}>
+              <FontAwesomeIcon icon={faMessage} className='me-2' />
+              Private Message
+            </Dropdown.Item>
+          )}
+          <Dropdown.Item onClick={handleUserProfile}>
+            <FontAwesomeIcon icon={faUser} className='me-2' />
+            User Profile
+          </Dropdown.Item>
+        </Dropdown.Menu>
+      </Dropdown>
+    </>
+  )
+}
+
+export default ProfileMenu

src/components/nav-menu/index.js

@@ -88,6 +88,13 @@ function NavMenu (props) {
               >
                 Content Creators
               </NavLink>
+              <NavLink
+                className={currentPath === '/nostr-chat' ? 'nav-link-active' : 'nav-link-inactive'}
+                to='/nostr-chat'
+                onClick={handleClickEvent}
+              >
+                Nostr Chat
+              </NavLink>
 
               <hr />
 

src/config/index.js

@@ -23,6 +23,9 @@ const config = {
     'wss://nostr-relay.psfoundation.info',
     'wss://nos.lol',
     'wss://relay.damus.io'
+  ],
+  chatsId: [
+    '32b0ebc01c984008977fbe476e064946990df75525331b24b37bbba5e89f4039'
   ]
 
 }

src/services/nostr-queries.js

@@ -4,10 +4,15 @@
  */
 import { RelayPool } from 'nostr'
 import * as nip19 from 'nostr-tools/nip19'
+import { nip04 } from 'nostr-tools'
+import { hexToBytes } from '@noble/hashes/utils' // already an installed dependency
 
 export default class NostrQueries {
   constructor ({ relays }) {
     this.relays = relays || []
+
+    this.loadedProfiles = {}
+    this.loadedChannelsInfo = {}
   }
 
   setRelays (relays) {
@@ -20,6 +25,10 @@ export default class NostrQueries {
     return pubHex
   }
 
+  hexToNpub (hex) {
+    return nip19.npubEncode(hex)
+  }
+
   // Load profile from nostr relays
   // It uses multiple relays. It will exit after the first successful retrieval
   // from any relay. If one relay fails, it will move on to the next one.
@@ -28,6 +37,12 @@ export default class NostrQueries {
       if (this.relays.length === 0) {
         return false
       }
+      const existingProfile = this.loadedProfiles[pubHex]
+      if (existingProfile) {
+        console.log(`Returning profile from cache :  ${existingProfile.name}`)
+        return existingProfile
+      }
+
       for (let i = 0; i < this.relays.length; i++) {
         const profile = await new Promise((resolve) => {
           const relay = this.relays[i]
@@ -54,12 +69,14 @@ export default class NostrQueries {
             relay.close()
           })
           pool.on('error', (relay) => {
+            console.log(`Error fetching ${pubHex} profile. relay connection error :${relay.url} `)
             relay.close()
             resolve(false)
           })
         })
         // Stop looking for profile if found
         if (profile) {
+          this.loadedProfiles[pubHex] = profile // Store profile
           return profile
         }
       }
@@ -302,4 +319,144 @@ export default class NostrQueries {
       console.warn(error)
     }
   }
+
+  async getChannelInfo (channelId) {
+    try {
+      if (this.relays.length === 0) {
+        return false
+      }
+      const existingChInfo = this.loadedChannelsInfo[channelId]
+      if (existingChInfo) {
+        console.log(`Returning ch info from cache :  ${existingChInfo.name}`)
+        return existingChInfo
+      }
+      for (let i = 0; i < this.relays.length; i++) {
+        const info = await new Promise((resolve) => {
+          const relay = this.relays[i]
+          // const pool = RelayPool(config.nostrRelays)
+          const pool = RelayPool([relay])
+          pool.on('open', relay => {
+            relay.subscribe('REQ', { limit: 1, kinds: [41], '#e': [channelId] })
+          })
+
+          pool.on('eose', relay => {
+            relay.close()
+            resolve(false)
+          })
+
+          pool.on('event', (relay, subId, ev) => {
+            try {
+              const chInfo = JSON.parse(ev.content)
+              resolve(chInfo)
+            } catch (error) {
+              resolve(false)
+            }
+            relay.close()
+          })
+          pool.on('error', (relay) => {
+            relay.close()
+            resolve(false)
+          })
+        })
+        // Stop looking for profile if found
+        if (info) {
+          this.loadedChannelsInfo[channelId] = info
+          return info
+        }
+      }
+    } catch (error) {
+      console.warn(error)
+    }
+  }
+
+  // Get associated pub keys from kind 04 inbox
+  async getDms (pubKey) {
+    try {
+      if (this.relays.length === 0) {
+        return []
+      }
+
+      let dms = await new Promise((resolve, reject) => {
+        let list = []
+        const closedRelays = []
+
+        const pool = RelayPool(this.relays)
+        // const pool = RelayPool([config.nostrRelay])
+        pool.on('open', relay => {
+          relay.subscribe('REQ', [
+            { limit: 100, kinds: [4], '#p': [pubKey] }, // received messages
+            { limit: 100, kinds: [4], authors: [pubKey] } // sent messages
+          ])
+        })
+
+        pool.on('eose', relay => {
+          relay.close()
+          if (!closedRelays.includes(relay)) {
+            closedRelays.push(relay)
+          }
+          // Resolve list if all relays are closed
+          if (closedRelays.length === this.relays.length) {
+            resolve(list)
+          }
+        })
+
+        pool.on('event', (relay, subId, ev) => {
+          console.log('post retrieved from ', relay.url, ev.sig)
+          if (ev.pubkey === pubKey) {
+            const pk = ev.tags[0][1]
+            list = [...list, pk]
+          } else {
+            list = [...list, ev.pubkey]
+          }
+        })
+        pool.on('error', (relay) => {
+          relay.close()
+          if (!closedRelays.includes(relay)) {
+            closedRelays.push(relay)
+          }
+          // Resolve list if all relays are closed
+          if (closedRelays.length === this.relays.length) {
+            resolve(list)
+          }
+        })
+      })
+
+      // Remove duplicated feeds
+      dms = dms.filter((val, i, list) => {
+        const existingIndex = list.findIndex(value => value === val)
+        return existingIndex === i
+      })
+
+      return dms
+    } catch (error) {
+      console.warn(error)
+    }
+  }
+
+  async encryptMsg (inObj = {}) {
+    try {
+      const { senderPrivKey, receiverPubKey, message } = inObj
+      const privateKeyBin = hexToBytes(senderPrivKey)
+      const encryptedMsg = await nip04.encrypt(privateKeyBin, receiverPubKey, message)
+      console.log('encryptedMsg', encryptedMsg)
+      return encryptedMsg
+    } catch (error) {
+      console.warn(error)
+      throw error
+    }
+  }
+
+  async decryptMsg (inObj = {}) {
+    try {
+      console.log(inObj)
+      const { receiverPrivKey, senderPubKey, encryptedMsg } = inObj
+      const privateKeyBin = hexToBytes(receiverPrivKey)
+      const decryptedMsg = await nip04.decrypt(privateKeyBin, senderPubKey, encryptedMsg)
+      console.log('decryptedMsg', decryptedMsg)
+      return decryptedMsg
+    } catch (error) {
+      console.warn(error)
+      throw error
+    }
+  }
 }