[OpenSIPS-Users] adding and reading a SIP header to a 302 Redirect

[Saint Michael]

I need to add a new SIP header to the response below.


if ($rm=="INVITE") {
    /* add the redirect destinations as branches */
    $branch = "sip:batman at gotham.com";
    $branch = $avp(my_custom_uri);
    /* sending a 3xx reply will automatically push all
     * existing branches as Contact URIs */
    send_reply("302","Moved Temporarily");
    exit;
}
the final result should be:

SIP/2.0 302 Moved Temporarily
Via: SIP/2.0/UDP 172.16.7.254:52169
;rport=52169;received=47.205.172.89;branch=z9hG4bK-524287-1---129f4244aaba9f04
Call-ID: 102650Mzg4NmFiNTQzOGY5NDJmNjM3OTYzNmE5MzNlZDIwZmI
From: "XXXXX" <sip:XXX4433019 at XXX.124.224.87>;tag=81a25c36
To: <sip:16317918378 at XXX
.124.224.87>;tag=9e198dc4-7ce8-433d-ae23-05b9bc14d55a
Identity:eyJhbGciOiJFUzI1NiIsInR5cCI6InBhc3Nwb3J0IiwicHB0Ijoic2hha2VuIiwieDV1IjoiaHR0cHM6Ly9jZXJ0LmV4YW1wbGUub3JnL3Bhc3Nwb3J0LmNlciJ9.eyJhdHRlc3QiOiJBIiwiZGVzdCI6eyJ0biI6WyI2MzE3OTE4Mzc4Il19LCJpYXQiOjE1OTA4MTEyMzgsIm9yaWciOnsidG4iOiI3Mjc0NDMzMDE5In0sIm9yaWdpZCI6IjEyM2U0NTY3LWU4OWItMTJkMy1hNDU2LTQyNjY1NTQ0MDAwMCJ9.AKViDWA3uonP6tt5cKBh0FUPY5zBuJnwZLQNTrp9LCWJ-vLY1Xx5i3_oXGh1ERL4tnD-KK5wsP3FdByDa_cjGw;info=<
https://cert.example.org/passport.cer>;alg=ES256;ppt=shaken
CSeq: 1 INVITE
Server: Asterisk PBX 16.10.0
Contact: <sip:16317918378>
Reason: Q.850;cause=0
Content-Length:  0

also if I get that packet at my end, how do I extract the Identity header
and apply it to the next INVITE?
Is this even doable?
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