soap::lite question

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greetings and merry Christmas to all,
I'm using SOAP::Lite in a perl app on a windows server running perl 5.10.0,=
to connect to a web service. it mostly works fine except i sometimes am ge=
tting a 400 Bad Request error sent back by the web service. I'm not too fam=
iliar with the use of SOAP, and my question involves the following snippet:

my $soap =3D SOAP::Lite
-> uri('https://services.websiteurl.com/')
-> on_action( sub { join '/', 'https://services.websiteurl.com', $_[1] =
} )
-> proxy('https://services.websiteurl.com/ReferralServices/Warm xfer.asm=
x');

my $method =3D SOAP::Data->name('service_name')
->attr({xmlns =3D> 'https://services.websiteurl.com/'});

note the $_[1] reference in the ON_ACTION line. I can't figure out what the=
value of $_[1] is or when it's being resolved to determine its value. it a=
ppears to have no value immediately preceding the snippet above, nor does i=
t have a value immediately preceding this line of code later in the program=
:
eval { $result =3D $soap->call($method =3D> @params=
) };

please let me know if you know how I can determine the value of $_[1]. much=
thanks.

John DePasquale
IT Manager
Law Offices of James Sokolove
1340 Centre Street - Suite 102
Newton, MA 02459
Direct line: 617-467-6932
Fax: 617-964-4336
This email is intended solely for the use of the individual to whom it is a=
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>

name=3D"place"/>
name=3D"PostalCode"/>
name=3D"State"/>
name=3D"City"/>
name=3D"Street"/>
name=3D"address"/>
name=3D"PersonName"/>