Search for messages from a user - Chat

The following will search all channels a user is a member of for all messages with a text field that does not equal " ".
You may also want to add the $or operator to the query for attachments, giphys, etc

const searchUserMessages = async (userId) => {
  const messages = await chatClient.search(
    {
      members: { $in: [userId] },
    },
    { text: { $ne: " " } }
  );

  return messages;
};

To search for all messages from a user, just add this to an $and operator:

const searchUser = async (userId) => {
  const messages = await chatClient.search(
    {
      $and: [ { members: { $in: [userId] } }, { id:userId } ]
    },
    { text: { $ne: " " } }
  );

  return messages;
};

Note that not all Channel Type permissions require membership to send messages - such as Livestream

How to query all the messages, where user is mentioned?

const result = await chatClient.search(
  {
      type: 'messaging'
  },
  {
    'mentioned_users.id': {
      $contains: 'vishal' || '',
    }
  },
  {
      limit: 20,
      offset: 0,
  },
);

Search in all channels, where user is member

const result = await chatClient.search(
  {
      members: {
        $in: ['vishal' || null],
      },
  },
  {
    'mentioned_users.id': {
      $contains: 'vishal' || '',
    }
  },
  {
      limit: 20,
      offset: 0,
  },
);

Search a channel, for attachments

const result = await chatClient?.search(
  {
    cid: { $in: [channel.cid] },
  },
  { 'attachments.type': { $in: ['image', 'file'] } },
  {
    limit: 10,
    offset: offset.current,
  },
);

• Docs for message search