How To get Chat History from XMPP for ejabberd

I am new to XMPP and ejabberd.

and I need to get chat history from ejabberd with XMPP.

I did Googling but didn't got satisfactory Answer.

Any link or idea will be great help.

Solution

According to the documentation here, you need to enable mod_mam in your configuration by adding mod_mam to the list of modules. You also need to specify some of the options as given in the documentation. For eg:

mod_mam: 
  default: roster
  request_activates_archiving: true
  assume_mam_usage: if_enabled

The default option is never, so you need to set the configuration accordingly.