2009/3/31 Keith Laaks <keithl@voxtelecom.co.za>

Hi,

Here is what I am trying to accomplish:

//--- completecall.js trigged via api_hangup_hook ----

use("CURL");

const loglevel='notice';

var uuid = request.getHeader("Core-UUID");

var billmsec = request.getHeader("billmsec");

var urlrequest = "UUID=" + uuid + "&billmsec=" + billmsec;

function reply_callback(string, arg) {

string = string.substring(string.search("API")+3);

string = string.substring(0,string.search("<"));

var splits = string.split("~");

var i = 0;

var length = splits.length;

for (i=0; i < length; i++) {

    var fv=splits[i].split("=");

    console_log(loglevel, "setting: " + fv[0] + " = " + fv[1] + "\n");

    //session.setVariable(fv[0],fv[1]); // Cant use set here as the session is dead by now - the call has been terminated

}

return true;

}

var curl = new CURL();

console_log(loglevel,"-- completecall.js ->" + url + "?" + urlrequest + "\n");

var env = request.dumpENV("text"); // debug

console_log("ENV:\n", env + "\n"); // debug

curl.run("POST", "http://127.0.0.1:10502/rate", urlrequest, reply_callback, "CBrate\n");

//returns string like <sometag>APIcharge=10.20</sometag>

exit();

So the trick is that I am accessing an external system via CURL where the call rate is calculated and returned (based on the call duration and uuid).

Now I need to use a ‘setVariable’ to get it back as one of the parameters that the cdr module can write out for me.

Note that in the above, the external system will return ‘charge=value’.

I need to set the variable ‘charge’ to the value in ‘value’.

Then using the config below, ‘charge’ can be written out as one of the cdr fields.

<configuration name="cdr_csv.conf" description="CDR CSV Format">

<settings>

    

    

    <param name="default-template" value="def"/>

    

    <param name="debug" value="true"/>

    <param name="rotate-on-hup" value="true"/>

    

    <param name="legs" value="a"/>

</settings>

<templates>

    <template name="def">"${accountcode}","${billsec}","${charge}","${sip_req_user}","${hangup_cause}","${uuid}","${bleg_uuid}"</template>

</templates>

</configuration>

Best Regards

Keith

From: Anthony Minessale [mailto:anthony.minessale@gmail.com]
Sent: 31 March 2009 00:13
To: freeswitch-users@lists.freeswitch.org
Subject: Re: [Freeswitch-users] Javascript, Hanguphooks,CDRs and User Variables.

in your script called via api_hangup_hook:

var env = request.dumpENV("text");

consoleLog("info", env);

all those vars are there for you, you can get the individually with
var hval = request.getHeader("some_header");

2009/3/30 Keith Laaks <keithl@voxtelecom.co.za>

Hi,

I have an application where my Javascript hanguphook code calculates a value (e.g. the cost of the call which can only be calculated post hangup) and I need to have that value appear as a field in the cdrs.

As the ‘session’ object is no longer available for javascript logic post hangup, I can’t figure out how to ‘set’ a user variable post hangup, such that it can be written to the cdr when the state changes from CS_HANGUP -> CS_REPORTING. Maybe it’s just not possible……? It would be a pity to have to resort to writing out cdrs from the javascript itself and duplicating what fs does so well already.

Any advice / suggestions would be appreciated.

Best Regards

Keith

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