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liyasker #1
Member since Jan 2006 · 6 posts
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Subject: there is any method avaliable to find user exists or not
I am using wildfire xmpp server and Agsxmpp dll
In my project i have one method

public void newuserRegisteration(username,password)
}any one call this Utility method and  they can register.

Before registeration i have to find wheather the user already exists or not?
can i search in xmpp server wheather the user already exists?
i need method like that..

private Boolean checkUserExists( string userName)


it should return true or false ( user exists or not)
it is posible through our agsxmpp library ?

help me
Alex #2
Member since Feb 2003 · 4245 posts · Location: Germany
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no there is nothing in XMPP to check if a user exists. This is by design and for security reasons.
But the register function will return an 409 error if the username is in use.

sample error packet:
<iq type='error' id='reg2'>
  <query xmlns='jabber:iq:register'>
  <error code='409' type='cancel'>
    <conflict xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'/>

Older server may return another error code. So just check them all.
You should get this error in OnRegisterError Handler.

let me know if this helps you.

Alexander Gnauck
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