async previewList() {

    //Get Conversations and sort by date
    var conversations = await ConversationDB.find({}).sort({date: 'desc'});

    //Get First Message of each Conversation and append to each conversation
    var mostRecentMessageIds = []

    conversations.forEach((conversation) => {
      var messageId = conversation.Messages[conversation.Messages.length - 1]
      mostRecentMessageIds.push(messageId);
    })

    var firstMessages = await messageModel.getMessagesByIds(mostRecentMessageIds);
    var newConversations = []

    firstMessages.forEach((message, i) => {
      var newConvo = {
        firstMessage: '',
        convo: ''
      }

      newConvo.firstMessage = firstMessages[i].Body;
      newConvo.convo = conversations[i];
      newConversations.push(newConvo);
    })

    var data = {
      data: newConversations
    }

    return data;
  }

 async createConversation(roomId: string, AFingerprint: string, BFingerprint: string) {
   return await ConversationDB.findOneAndUpdate(
     {
       'RoomId': roomId
     },{
       safe: true,
       new: true,
       upsert: true
     });
 }

 async updateConversation(roomId: string, message: string) {
   return await ConversationDB
     .findOneAndUpdate({
       'RoomId': roomId
     }, {
       'Date': Date.now(),
       '$push': { 'Messages': message }
     }, {
       safe: true, upsert: true, new: true
     });
 }

 async all() {
   return await ConversationDB.find();
 }