callRemote

['LinKin]

Hello,

I've this code:

 addCommandHandler("getip", 
function() 
     local theIP = getServerIp() 
     outputChatBox(theIP) 
end) 
  
function getServerIp() 
    callRemote("http://www.nub.hj.cx/getServerIp.php", 
    function(value) 
        if (value ~= "ERROR") then 
        outputChatBox("Returning value...") 
            return value 
        end 
    end) 
    outputChatBox("Returning False...") 
    return false 
end 
  

And the problem is:

Error: attempt to concatenate local 'theIP' (a boolean value) Ln: 4

That's beacause when I call the function getServerIp() the result is NOT immediate, so, it will return false at first, and then after a very short period of time, it will return the value (the IP)

So the question is, how can I make getServerIp() function to wait untill the result is ready?

I tried to add connectionAttempts argument in callRemote but it didn't work. I was getting the same error.

[TAPL]

You don't need to call the function each time you want the ip, because your server ip won't change anyway.

[Chronic]

One way you could do it is

if type ( theIP ) == "boolean" then 
setTimer (...)  

or something like that.. Good luck

['LinKin]

1st reply had nothing to do with what I asked.

I'll try to use a while cycle..

while theIP == false do

hm, I'll try.

Thanks Chronic

[Chronic]

1st reply had nothing to do with what I asked.

I'll try to use a while cycle..

while theIP == false do

hm, I'll try.

Thanks Chronic

Oh wow I didn't even think of that

and no problem

['LinKin]

Ok, tried with while cycle, but it freezes the server... uh no..

I got a good solution now.

Just call a function when the result is ready:

function getServerIp()

callRemote("http://www.nub.hj.cx/getServerIp.php",

function(value)

if (value ~= "ERROR") then

outputChatBox(type(value).." IP: "..value)

resultReady() -- Here's the function

return value

end

end)

outputChatBox("Returning False...")

return false

end

[xXMADEXx]

It's not returning anything, because it is trying to output theIP before it gets a response from getServerIp.

You should do what TAPL said, and just define theIP at the top of the script, because it isn't going to change.

addEventHandler ( "onResourceStart", resourceRoot, function ( ) 
    theIP = getServerIp() 
end ) 
  
addCommandHandler("getip", function() 
    outputChatBox(theIP) 
end ) 
  
function getServerIp() 
    callRemote("http://www.nub.hj.cx/getServerIp.php", function(value) 
        if (value ~= "ERROR") then 
            outputChatBox("Returning value...") 
            return value 
        end 
    end ) 
    outputChatBox("Returning False...") 
    return false 
end