NAME¶
SOAP::Lite - Perl's Web Services Toolkit
DESCRIPTION¶
SOAP::Lite is a collection of Perl modules which provides a simple and
lightweight interface to the Simple Object Access Protocol (SOAP) both on
client and server side.
PERL VERSION WARNING¶
As of version SOAP::Lite version 1.05, no perl versions before 5.8 will be
supported.
SOAP::Lite 0.71 will be the last version of SOAP::Lite running on perl 5.005
Future versions of SOAP::Lite will require at least perl 5.6.0
If you have not had the time to upgrade your perl, you should consider this now.
OVERVIEW OF CLASSES AND PACKAGES¶
- lib/SOAP/Lite.pm
- SOAP::Lite - Main class provides all logic
SOAP::Transport - Transport backend
SOAP::Data - Data objects
SOAP::Header - Header Data Objects
SOAP::Serializer - Serializes data structures to SOAP messages
SOAP::Deserializer - Deserializes SOAP messages into SOAP::SOM objects
SOAP::SOM - SOAP Message objects
SOAP::Constants - Provides access to common constants and defaults
SOAP::Trace - Tracing facilities
SOAP::Schema - Provides access and stub(s) for schema(s)
SOAP::Schema::WSDL - WSDL implementation for SOAP::Schema
SOAP::Server - Handles requests on server side
SOAP::Server::Object - Handles objects-by-reference
SOAP::Fault - Provides support for Faults on server side
SOAP::Utils - A set of private and public utility subroutines
- lib/SOAP/Packager.pm
- SOAP::Packager - Provides an abstract class for implementing custom
packagers.
SOAP::Packager::MIME - Provides MIME support to SOAP::Lite
SOAP::Packager::DIME - Provides DIME support to SOAP::Lite
- lib/SOAP/Transport/HTTP.pm
- SOAP::Transport::HTTP::Client - Client interface to HTTP transport
SOAP::Transport::HTTP::Server - Server interface to HTTP transport
SOAP::Transport::HTTP::CGI - CGI implementation of server interface
SOAP::Transport::HTTP::Daemon - Daemon implementation of server interface
SOAP::Transport::HTTP::Apache - mod_perl implementation of server
interface
- lib/SOAP/Transport/POP3.pm
- SOAP::Transport::POP3::Server - Server interface to POP3 protocol
- lib/SOAP/Transport/MAILTO.pm
- SOAP::Transport::MAILTO::Client - Client interface to SMTP/sendmail
- lib/SOAP/Transport/LOCAL.pm
- SOAP::Transport::LOCAL::Client - Client interface to local transport
- lib/SOAP/Transport/TCP.pm
- SOAP::Transport::TCP::Server - Server interface to TCP protocol
SOAP::Transport::TCP::Client - Client interface to TCP protocol
- lib/SOAP/Transport/IO.pm
- SOAP::Transport::IO::Server - Server interface to IO transport
METHODS¶
All accessor methods return the current value when called with no arguments,
while returning the object reference itself when called with a new value. This
allows the set-attribute calls to be chained together.
- new(optional key/value pairs)
-
$client = SOAP::Lite->new(proxy => $endpoint)
Constructor. Many of the accessor methods defined here may be initialized at
creation by providing their name as a key, followed by the desired value.
The example provides the value for the proxy element of the client.
- transport(optional transport object)
-
$transp = $client->transport( );
Gets or sets the transport object used for sending/receiving SOAP messages.
See SOAP::Transport for details.
- serializer(optional serializer object)
-
$serial = $client->serializer( )
Gets or sets the serializer object used for creating XML messages.
See SOAP::Serializer for details.
- packager(optional packager object)
-
$packager = $client->packager( )
Provides access to the "SOAP::Packager" object that the client
uses to manage the use of attachments. The default packager is a MIME
packager, but unless you specify parts to send, no MIME formatting will be
done.
See also: SOAP::Packager.
- proxy(endpoint, optional extra arguments)
-
$client->proxy('http://soap.xml.info/ endPoint');
The proxy is the server or endpoint to which the client is going to connect.
This method allows the setting of the endpoint, along with any extra
information that the transport object may need when communicating the
request.
This method is actually an alias to the proxy method of SOAP::Transport. It
is the same as typing:
$client->transport( )->proxy(...arguments);
Extra parameters can be passed to proxy() - see below.
- compress_threshold
- See COMPRESSION in HTTP::Transport.
- All initialization options from the underlying transport layer
- The options for HTTP(S) are the same as for LWP::UserAgent's new()
method.
A common option is to create a instance of HTTP::Cookies and pass it as
cookie_jar option:
my $cookie_jar = HTTP::Cookies->new()
$client->proxy('http://www.example.org/webservice',
cookie_jar => $cookie_jar,
);
For example, if you wish to set the HTTP timeout for a SOAP::Lite client to 5
seconds, use the following code:
my $soap = SOAP::Lite
->uri($uri)
->proxy($proxyUrl, timeout => 5 );
See LWP::UserAgent.
- endpoint(optional new endpoint address)
-
$client->endpoint('http://soap.xml.info/ newPoint')
It may be preferable to set a new endpoint without the additional work of
examining the new address for protocol information and checking to ensure
the support code is loaded and available. This method allows the caller to
change the endpoint that the client is currently set to connect to,
without reloading the relevant transport code. Note that the proxy method
must have been called before this method is used.
- service(service URL)
-
$client->service('http://svc.perl.org/Svc.wsdl');
"SOAP::Lite" offers some support for creating method stubs from
service descriptions. At present, only WSDL support is in place. This
method loads the specified WSDL schema and uses it as the basis for
generating stubs.
- outputxml(boolean)
-
$client->outputxml('true');
When set to a true value, the raw XML is returned by the call to a remote
method.
The default is to return the a SOAP::SOM object (false).
- autotype(boolean)
-
$client->autotype(0);
This method is a shortcut for:
$client->serializer->autotype(boolean);
By default, the serializer tries to automatically deduce types for the data
being sent in a message. Setting a false value with this method disables
the behavior.
- readable(boolean)
-
$client->readable(1);
This method is a shortcut for:
$client->serializer->readable(boolean);
When this is used to set a true value for this property, the generated XML
sent to the endpoint has extra characters (spaces and new lines) added in
to make the XML itself more readable to human eyes (presumably for
debugging). The default is to not send any additional characters.
- default_ns($uri)
- Sets the default namespace for the request to the specified uri. This
overrides any previous namespace declaration that may have been set using
a previous call to "ns()" or "default_ns()". Setting
the default namespace causes elements to be serialized without a namespace
prefix, like this:
<soap:Envelope>
<soap:Body>
<myMethod xmlns="http://www.someuri.com">
<foo />
</myMethod>
</soap:Body>
</soap:Envelope>
Some .NET web services have been reported to require this XML namespace
idiom.
- ns($uri,$prefix=undef)
- Sets the namespace uri and optionally the namespace prefix for the request
to the specified values. This overrides any previous namespace declaration
that may have been set using a previous call to "ns()" or
"default_ns()".
If a prefix is not specified, one will be generated for you automatically.
Setting the namespace causes elements to be serialized with a declared
namespace prefix, like this:
<soap:Envelope>
<soap:Body>
<my:myMethod xmlns:my="http://www.someuri.com">
<my:foo />
</my:myMethod>
</soap:Body>
</soap:Envelope>
- use_prefix(boolean)
- Deprecated. Use the "ns()" and "default_ns" methods
described above.
Shortcut for "serializer->use_prefix()". This lets you turn
on/off the use of a namespace prefix for the children of the
/Envelope/Body element. Default is 'true'.
When use_prefix is set to 'true', serialized XML will look like this:
<SOAP-ENV:Envelope ...attributes skipped>
<SOAP-ENV:Body>
<namesp1:mymethod xmlns:namesp1="urn:MyURI" />
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
When use_prefix is set to 'false', serialized XML will look like this:
<SOAP-ENV:Envelope ...attributes skipped>
<SOAP-ENV:Body>
<mymethod xmlns="urn:MyURI" />
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
Some .NET web services have been reported to require this XML namespace
idiom.
- soapversion(optional value)
-
$client->soapversion('1.2');
If no parameter is given, returns the current version of SOAP that is being
used by the client object to encode requests. If a parameter is given, the
method attempts to set that as the version of SOAP being used.
The value should be either 1.1 or 1.2.
- envprefix(QName)
-
$client->envprefix('env');
This method is a shortcut for:
$client->serializer->envprefix(QName);
Gets or sets the namespace prefix for the SOAP namespace. The default is
SOAP.
The prefix itself has no meaning, but applications may wish to chose one
explicitly to denote different versions of SOAP or the like.
- encprefix(QName)
-
$client->encprefix('enc');
This method is a shortcut for:
$client->serializer->encprefix(QName);
Gets or sets the namespace prefix for the encoding rules namespace. The
default value is SOAP-ENC.
While it may seem to be an unnecessary operation to set a value that isn't
relevant to the message, such as the namespace labels for the envelope and
encoding URNs, the ability to set these labels explicitly can prove to be a
great aid in distinguishing and debugging messages on the server side of
operations.
- encoding(encoding URN)
-
$client->encoding($soap_12_encoding_URN);
This method is a shortcut for:
$client->serializer->encoding(args);
Where the earlier method dealt with the label used for the attributes
related to the SOAP encoding scheme, this method actually sets the URN to
be specified as the encoding scheme for the message. The default is to
specify the encoding for SOAP 1.1, so this is handy for applications that
need to encode according to SOAP 1.2 rules.
- typelookup
-
$client->typelookup;
This method is a shortcut for:
$client->serializer->typelookup;
Gives the application access to the type-lookup table from the serializer
object. See the section on SOAP::Serializer.
- uri(service specifier)
- Deprecated - the "uri" subroutine is deprecated in order to
provide a more intuitive naming scheme for subroutines that set
namespaces. In the future, you will be required to use either the
"ns()" or "default_ns()" subroutines instead of
"uri()".
$client->uri($service_uri);
This method is a shortcut for:
$client->serializer->uri(service);
The URI associated with this accessor on a client object is the
service-specifier for the request, often encoded for HTTP-based requests
as the SOAPAction header. While the names may seem confusing, this method
doesn't specify the endpoint itself. In most circumstances, the
"uri" refers to the namespace used for the request.
Often times, the value may look like a valid URL. Despite this, it doesn't
have to point to an existing resource (and often doesn't). This method
sets and retrieves this value from the object. Note that no transport code
is triggered by this because it has no direct effect on the transport of
the object.
- multirefinplace(boolean)
-
$client->multirefinplace(1);
This method is a shortcut for:
$client->serializer->multirefinplace(boolean);
Controls how the serializer handles values that have multiple references to
them. Recall from previous SOAP chapters that a value may be tagged with
an identifier, then referred to in several places. When this is the case
for a value, the serializer defaults to putting the data element towards
the top of the message, right after the opening tag of the
method-specification. It is serialized as a standalone entity with an ID
that is then referenced at the relevant places later on. If this method is
used to set a true value, the behavior is different. When the
multirefinplace attribute is true, the data is serialized at the first
place that references it, rather than as a separate element higher up in
the body. This is more compact but may be harder to read or trace in a
debugging environment.
- parts( ARRAY )
- Used to specify an array of MIME::Entity's to be attached to the
transmitted SOAP message. Attachments that are returned in a response can
be accessed by "SOAP::SOM::parts()".
- self
-
$ref = SOAP::Lite->self;
Returns an object reference to the default global object the
"SOAP::Lite" package maintains. This is the object that
processes many of the arguments when provided on the use line.
The following method isn't an accessor style of method but neither does it fit
with the group that immediately follows it:
- call(arguments)
-
$client->call($method => @arguments);
As has been illustrated in previous chapters, the "SOAP::Lite"
client objects can manage remote calls with auto-dispatching using some of
Perl's more elaborate features. call is used when the application wants a
greater degree of control over the details of the call itself. The method
may be built up from a SOAP::Data object, so as to allow full control over
the namespace associated with the tag, as well as other attributes like
encoding. This is also important for calling methods that contain
characters not allowable in Perl function names, such as A.B.C.
The next four methods used in the "SOAP::Lite" class are geared
towards handling the types of events than can occur during the message
lifecycle. Each of these sets up a callback for the event in question:
- on_action(callback)
-
$client->on_action(sub { qq("$_[0]") });
Triggered when the transport object sets up the SOAPAction header for an
HTTP-based call. The default is to set the header to the string,
uri#method, in which URI is the value set by the uri method described
earlier, and method is the name of the method being called. When called,
the routine referenced (or the closure, if specified as in the example) is
given two arguments, uri and method, in that order.
.NET web services usually expect "/" as separator for
"uri" and "method". To change SOAP::Lite's behaviour
to use uri/method as SOAPAction header, use the following code:
$client->on_action( sub { join '/', @_ } );
=item on_fault(callback)
$client->on_fault(sub { popup_dialog($_[1]) });
Triggered when a method call results in a fault response from the server.
When it is called, the argument list is first the client object itself,
followed by the object that encapsulates the fault. In the example, the
fault object is passed (without the client object) to a hypothetical GUI
function that presents an error dialog with the text of fault extracted
from the object (which is covered shortly under the SOAP::SOM
methods).
- on_nonserialized(callback)
-
$client->on_nonserialized(sub { die "$_[0]?!?" });
Occasionally, the serializer may be given data it can't turn into SOAP-savvy
XML; for example, if a program bug results in a code reference or
something similar being passed in as a parameter to method call. When that
happens, this callback is activated, with one argument. That argument is
the data item that could not be understood. It will be the only argument.
If the routine returns, the return value is pasted into the message as the
serialization. Generally, an error is in order, and this callback allows
for control over signaling that error.
- on_debug(callback)
-
$client->on_debug(sub { print @_ });
Deprecated. Use the global +debug and +trace facilities described in
SOAP::Trace
Note that this method will not work as expected: Instead of affecting the
debugging behaviour of the object called on, it will globally affect the
debugging behaviour for all objects of that class.
WRITING A SOAP CLIENT¶
This chapter guides you to writing a SOAP client by example.
The SOAP service to be accessed is a simple variation of the well-known hello
world program. It accepts two parameters, a name and a given name, and returns
"Hello $given_name $name".
We will use "Martin Kutter" as the name for the call, so all variants
will print the following message on success:
Hello Martin Kutter!
SOAP message styles¶
There are three common (and one less common) variants of SOAP messages.
These address the message style (positional parameters vs. specified message
documents) and encoding (as-is vs. typed).
The different message styles are:
- •
- rpc/encoded
Typed, positional parameters. Widely used in scripting languages. The type
of the arguments is included in the message. Arrays and the like may be
encoded using SOAP encoding rules (or others).
- •
- rpc/literal
As-is, positional parameters. The type of arguments is defined by some
pre-exchanged interface definition.
- •
- document/encoded
Specified message with typed elements. Rarely used.
- •
- document/literal
Specified message with as-is elements. The message specification and element
types are defined by some pre-exchanged interface definition.
As of 2008, document/literal has become the predominant SOAP message variant.
rpc/literal and rpc/encoded are still in use, mainly with scripting languages,
while document/encoded is hardly used at all.
You will see clients for the rpc/encoded and document/literal SOAP variants in
this section.
Example implementations¶
RPC/ENCODED
Rpc/encoded is most popular with scripting languages like perl, php and python
without the use of a WSDL. Usual method descriptions look like this:
Method: sayHello(string, string)
Parameters:
name: string
givenName: string
Such a description usually means that you can call a method named
"sayHello" with two positional parameters, "name" and
"givenName", which both are strings.
The message corresponding to this description looks somewhat like this:
<sayHello xmlns="urn:HelloWorld">
<s-gensym01 xsi:type="xsd:string">Kutter</s-gensym01>
<s-gensym02 xsi:type="xsd:string">Martin</s-gensym02>
</sayHello>
Any XML tag names may be used instead of the "s-gensym01" stuff -
parameters are positional, the tag names have no meaning.
A client producing such a call is implemented like this:
use SOAP::Lite;
my $soap = SOAP::Lite->new( proxy => 'http://localhost:81/soap-wsdl-test/helloworld.pl');
$soap->default_ns('urn:HelloWorld');
my $som = $soap->call('sayHello', 'Kutter', 'Martin');
die $som->faultstring if ($som->fault);
print $som->result, "\n";
You can of course use a one-liner, too...
Sometimes, rpc/encoded interfaces are described with WSDL definitions. A WSDL
accepting "named" parameters with rpc/encoded looks like this:
<definitions xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:s="http://www.w3.org/2001/XMLSchema"
xmlns:s0="urn:HelloWorld"
targetNamespace="urn:HelloWorld"
xmlns="http://schemas.xmlsoap.org/wsdl/">
<types>
<s:schema targetNamespace="urn:HelloWorld">
</s:schema>
</types>
<message name="sayHello">
<part name="name" type="s:string" />
<part name="givenName" type="s:string" />
</message>
<message name="sayHelloResponse">
<part name="sayHelloResult" type="s:string" />
</message>
<portType name="Service1Soap">
<operation name="sayHello">
<input message="s0:sayHello" />
<output message="s0:sayHelloResponse" />
</operation>
</portType>
<binding name="Service1Soap" type="s0:Service1Soap">
<soap:binding transport="http://schemas.xmlsoap.org/soap/http"
style="rpc" />
<operation name="sayHello">
<soap:operation soapAction="urn:HelloWorld#sayHello"/>
<input>
<soap:body use="encoded"
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"/>
</input>
<output>
<soap:body use="encoded"
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"/>
</output>
</operation>
</binding>
<service name="HelloWorld">
<port name="HelloWorldSoap" binding="s0:Service1Soap">
<soap:address location="http://localhost:81/soap-wsdl-test/helloworld.pl" />
</port>
</service>
</definitions>
The message corresponding to this schema looks like this:
<sayHello xmlns="urn:HelloWorld">
<name xsi:type="xsd:string">Kutter</name>
<givenName xsi:type="xsd:string">Martin</givenName>
</sayHello>
A web service client using this schema looks like this:
use SOAP::Lite;
my $soap = SOAP::Lite->service("file:say_hello_rpcenc.wsdl");
eval { my $result = $soap->sayHello('Kutter', 'Martin'); };
if ($@) {
die $@;
}
print $som->result();
You may of course also use the following one-liner:
perl -MSOAP::Lite -e 'print SOAP::Lite->service("file:say_hello_rpcenc.wsdl")\
->sayHello('Kutter', 'Martin'), "\n";'
A web service client (without a service description) looks like this.
use SOAP::Lite;
my $soap = SOAP::Lite->new( proxy => 'http://localhost:81/soap-wsdl-test/helloworld.pl');
$soap->default_ns('urn:HelloWorld');
my $som = $soap->call('sayHello',
SOAP::Data->name('name')->value('Kutter'),
SOAP::Data->name('givenName')->value('Martin')
);
die $som->faultstring if ($som->fault);
print $som->result, "\n";
RPC/LITERAL
SOAP web services using the document/literal message encoding are usually
described by some Web Service Definition. Our web service has the following
WSDL description:
<definitions xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:s="http://www.w3.org/2001/XMLSchema"
xmlns:s0="urn:HelloWorld"
targetNamespace="urn:HelloWorld"
xmlns="http://schemas.xmlsoap.org/wsdl/">
<types>
<s:schema targetNamespace="urn:HelloWorld">
<s:complexType name="sayHello">
<s:sequence>
<s:element minOccurs="0" maxOccurs="1" name="name"
type="s:string" />
<s:element minOccurs="0" maxOccurs="1" name="givenName"
type="s:string" nillable="1" />
</s:sequence>
</s:complexType>
<s:complexType name="sayHelloResponse">
<s:sequence>
<s:element minOccurs="0" maxOccurs="1" name="sayHelloResult"
type="s:string" />
</s:sequence>
</s:complexType>
</s:schema>
</types>
<message name="sayHello">
<part name="parameters" type="s0:sayHello" />
</message>
<message name="sayHelloResponse">
<part name="parameters" type="s0:sayHelloResponse" />
</message>
<portType name="Service1Soap">
<operation name="sayHello">
<input message="s0:sayHello" />
<output message="s0:sayHelloResponse" />
</operation>
</portType>
<binding name="Service1Soap" type="s0:Service1Soap">
<soap:binding transport="http://schemas.xmlsoap.org/soap/http"
style="rpc" />
<operation name="sayHello">
<soap:operation soapAction="urn:HelloWorld#sayHello"/>
<input>
<soap:body use="literal" namespace="urn:HelloWorld"/>
</input>
<output>
<soap:body use="literal" namespace="urn:HelloWorld"/>
</output>
</operation>
</binding>
<service name="HelloWorld">
<port name="HelloWorldSoap" binding="s0:Service1Soap">
<soap:address location="http://localhost:80//helloworld.pl" />
</port>
</service>
</definitions>
The XML message (inside the SOAP Envelope) look like this:
<ns0:sayHello xmlns:ns0="urn:HelloWorld">
<parameters>
<name>Kutter</name>
<givenName>Martin</givenName>
</parameters>
</ns0:sayHello>
<sayHelloResponse xmlns:ns0="urn:HelloWorld">
<parameters>
<sayHelloResult>Hello Martin Kutter!</sayHelloResult>
</parameters>
</sayHelloResponse>
This is the SOAP::Lite implementation for the web service client:
use SOAP::Lite +trace;
my $soap = SOAP::Lite->new( proxy => 'http://localhost:80/helloworld.pl');
$soap->on_action( sub { "urn:HelloWorld#sayHello" });
$soap->autotype(0)->readable(1);
$soap->default_ns('urn:HelloWorld');
my $som = $soap->call('sayHello', SOAP::Data->name('parameters')->value(
\SOAP::Data->value([
SOAP::Data->name('name')->value( 'Kutter' ),
SOAP::Data->name('givenName')->value('Martin'),
]))
);
die $som->fault->{ faultstring } if ($som->fault);
print $som->result, "\n";
DOCUMENT/LITERAL
SOAP web services using the document/literal message encoding are usually
described by some Web Service Definition. Our web service has the following
WSDL description:
<definitions xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:s="http://www.w3.org/2001/XMLSchema"
xmlns:s0="urn:HelloWorld"
targetNamespace="urn:HelloWorld"
xmlns="http://schemas.xmlsoap.org/wsdl/">
<types>
<s:schema targetNamespace="urn:HelloWorld">
<s:element name="sayHello">
<s:complexType>
<s:sequence>
<s:element minOccurs="0" maxOccurs="1" name="name" type="s:string" />
<s:element minOccurs="0" maxOccurs="1" name="givenName" type="s:string" nillable="1" />
</s:sequence>
</s:complexType>
</s:element>
<s:element name="sayHelloResponse">
<s:complexType>
<s:sequence>
<s:element minOccurs="0" maxOccurs="1" name="sayHelloResult" type="s:string" />
</s:sequence>
</s:complexType>
</s:element>
</types>
<message name="sayHelloSoapIn">
<part name="parameters" element="s0:sayHello" />
</message>
<message name="sayHelloSoapOut">
<part name="parameters" element="s0:sayHelloResponse" />
</message>
<portType name="Service1Soap">
<operation name="sayHello">
<input message="s0:sayHelloSoapIn" />
<output message="s0:sayHelloSoapOut" />
</operation>
</portType>
<binding name="Service1Soap" type="s0:Service1Soap">
<soap:binding transport="http://schemas.xmlsoap.org/soap/http"
style="document" />
<operation name="sayHello">
<soap:operation soapAction="urn:HelloWorld#sayHello"/>
<input>
<soap:body use="literal" />
</input>
<output>
<soap:body use="literal" />
</output>
</operation>
</binding>
<service name="HelloWorld">
<port name="HelloWorldSoap" binding="s0:Service1Soap">
<soap:address location="http://localhost:80//helloworld.pl" />
</port>
</service>
</definitions>
The XML message (inside the SOAP Envelope) look like this:
<sayHello xmlns="urn:HelloWorld">
<name>Kutter</name>
<givenName>Martin</givenName>
</sayHello>
<sayHelloResponse>
<sayHelloResult>Hello Martin Kutter!</sayHelloResult>
</sayHelloResponse>
You can call this web service with the following client code:
use SOAP::Lite;
my $soap = SOAP::Lite->new( proxy => 'http://localhost:80/helloworld.pl');
$soap->on_action( sub { "urn:HelloWorld#sayHello" });
$soap->autotype(0);
$soap->default_ns('urn:HelloWorld');
my $som = $soap->call("sayHello",
SOAP::Data->name('name')->value( 'Kutter' ),
SOAP::Data->name('givenName')->value('Martin'),
);
die $som->fault->{ faultstring } if ($som->fault);
print $som->result, "\n";
Differences between the implementations¶
You may have noticed that there's little difference between the rpc/encoded,
rpc/literal and the document/literal example's implementation. In fact, from
SOAP::Lite's point of view, the only differences between rpc/literal and
document/literal that parameters are always named.
In our example, the rpc/encoded variant already used named parameters (by using
two messages), so there's no difference at all.
You may have noticed the somewhat strange idiom for passing a list of named
parameters in the rpc/literal example:
my $som = $soap->call('sayHello', SOAP::Data->name('parameters')->value(
\SOAP::Data->value([
SOAP::Data->name('name')->value( 'Kutter' ),
SOAP::Data->name('givenName')->value('Martin'),
]))
);
While SOAP::Data provides full control over the XML generated, passing hash-like
structures require additional coding.
WRITING A SOAP SERVER¶
See SOAP::Server, or SOAP::Transport.
FEATURES¶
ATTACHMENTS¶
"SOAP::Lite" features support for the SOAP with Attachments
specification. Currently, SOAP::Lite only supports MIME based attachments.
DIME based attachments are yet to be fully functional.
EXAMPLES
Client sending an attachment
"SOAP::Lite" clients can specify attachments to be sent along with a
request by using the "SOAP::Lite::parts()" method, which takes as an
argument an ARRAY of "MIME::Entity"'s.
use SOAP::Lite;
use MIME::Entity;
my $ent = build MIME::Entity
Type => "image/gif",
Encoding => "base64",
Path => "somefile.gif",
Filename => "saveme.gif",
Disposition => "attachment";
my $som = SOAP::Lite
->uri($SOME_NAMESPACE)
->parts([ $ent ])
->proxy($SOME_HOST)
->some_method(SOAP::Data->name("foo" => "bar"));
Client retrieving an attachment
A client accessing attachments that were returned in a response by using the
"SOAP::SOM::parts()" accessor.
use SOAP::Lite;
use MIME::Entity;
my $soap = SOAP::Lite
->uri($NS)
->proxy($HOST);
my $som = $soap->foo();
foreach my $part (${$som->parts}) {
print $part->stringify;
}
Server receiving an attachment
Servers, like clients, use the SOAP::SOM module to access attachments
transmitted to it.
package Attachment;
use SOAP::Lite;
use MIME::Entity;
use strict;
use vars qw(@ISA);
@ISA = qw(SOAP::Server::Parameters);
sub someMethod {
my $self = shift;
my $envelope = pop;
foreach my $part (@{$envelope->parts}) {
print "AttachmentService: attachment found! (".ref($part).")\n";
}
# do something
}
Server responding with an attachment
Servers wishing to return an attachment to the calling client need only return
"MIME::Entity" objects along with SOAP::Data elements, or any other
data intended for the response.
package Attachment;
use SOAP::Lite;
use MIME::Entity;
use strict;
use vars qw(@ISA);
@ISA = qw(SOAP::Server::Parameters);
sub someMethod {
my $self = shift;
my $envelope = pop;
my $ent = build MIME::Entity
'Id' => "<1234>",
'Type' => "text/xml",
'Path' => "some.xml",
'Filename' => "some.xml",
'Disposition' => "attachment";
return SOAP::Data->name("foo" => "blah blah blah"),$ent;
}
DEFAULT SETTINGS¶
Though this feature looks similar to autodispatch they have (almost) nothing in
common. This capability allows you specify default settings so that all
objects created after that will be initialized with the proper default
settings.
If you wish to provide common "proxy()" or "uri()" settings
for all "SOAP::Lite" objects in your application you may do:
use SOAP::Lite
proxy => 'http://localhost/cgi-bin/soap.cgi',
uri => 'http://my.own.com/My/Examples';
my $soap1 = new SOAP::Lite; # will get the same proxy()/uri() as above
print $soap1->getStateName(1)->result;
my $soap2 = SOAP::Lite->new; # same thing as above
print $soap2->getStateName(2)->result;
# or you may override any settings you want
my $soap3 = SOAP::Lite->proxy('http://localhost/');
print $soap3->getStateName(1)->result;
Any "SOAP::Lite" properties can be propagated this way. Changes
in object copies will not affect global settings and you may still change
global settings with "SOAP::Lite->self" call which returns
reference to global object. Provided parameter will update this object and you
can even set it to "undef":
SOAP::Lite->self(undef);
The "use SOAP::Lite" syntax also lets you specify default event
handlers for your code. If you have different SOAP objects and want to share
the same "on_action()" (or "on_fault()" for that matter)
handler. You can specify "on_action()" during initialization for
every object, but you may also do:
use SOAP::Lite
on_action => sub {sprintf '%s#%s', @_};
and this handler will be the default handler for all your SOAP objects. You can
override it if you specify a handler for a particular object. See
t/*.t
for example of
on_fault() handler.
Be warned, that since "use ..." is executed at compile time
all
"use" statements will be executed
before script execution
that can make unexpected results. Consider code:
use SOAP::Lite proxy => 'http://localhost/';
print SOAP::Lite->getStateName(1)->result;
use SOAP::Lite proxy => 'http://localhost/cgi-bin/soap.cgi';
print SOAP::Lite->getStateName(1)->result;
Both SOAP calls will go to '
http://localhost/cgi-bin/soap.cgi'. If you
want to execute "use" at run-time, put it in "eval":
eval "use SOAP::Lite proxy => 'http://localhost/cgi-bin/soap.cgi'; 1" or die;
Or alternatively,
SOAP::Lite->self->proxy('http://localhost/cgi-bin/soap.cgi');
SETTING MAXIMUM MESSAGE SIZE¶
One feature of "SOAP::Lite" is the ability to control the maximum size
of a message a SOAP::Lite server will be allowed to process. To control this
feature simply define $SOAP::Constants::MAX_CONTENT_SIZE in your code like so:
use SOAP::Transport::HTTP;
use MIME::Entity;
$SOAP::Constants::MAX_CONTENT_SIZE = 10000;
SOAP::Transport::HTTP::CGI
->dispatch_to('TemperatureService')
->handle;
IN/OUT, OUT PARAMETERS AND AUTOBINDING¶
"SOAP::Lite" gives you access to all parameters (both in/out and out)
and also does some additional work for you. Lets consider following example:
<mehodResponse>
<res1>name1</res1>
<res2>name2</res2>
<res3>name3</res3>
</mehodResponse>
In that case:
$result = $r->result; # gives you 'name1'
$paramout1 = $r->paramsout; # gives you 'name2', because of scalar context
$paramout1 = ($r->paramsout)[0]; # gives you 'name2' also
$paramout2 = ($r->paramsout)[1]; # gives you 'name3'
or
@paramsout = $r->paramsout; # gives you ARRAY of out parameters
$paramout1 = $paramsout[0]; # gives you 'res2', same as ($r->paramsout)[0]
$paramout2 = $paramsout[1]; # gives you 'res3', same as ($r->paramsout)[1]
Generally, if server returns "return (1,2,3)" you will get 1 as the
result and 2 and 3 as out parameters.
If the server returns "return [1,2,3]" you will get an ARRAY reference
from "result()" and "undef" from "paramsout()".
Results can be arbitrary complex: they can be an array references, they can be
objects, they can be anything and still be returned by "result()" .
If only one parameter is returned, "paramsout()" will return
"undef".
Furthermore, if you have in your output parameters a parameter with the same
signature (name+type) as in the input parameters this parameter will be mapped
into your input automatically. For example:
Server Code:
sub mymethod {
shift; # object/class reference
my $param1 = shift;
my $param2 = SOAP::Data->name('myparam' => shift() * 2);
return $param1, $param2;
}
Client Code:
$a = 10;
$b = SOAP::Data->name('myparam' => 12);
$result = $soap->mymethod($a, $b);
After that, "$result == 10 and $b->value == 24"! Magic? Sort of.
Autobinding gives it to you. That will work with objects also with one
difference: you do not need to worry about the name and the type of object
parameter. Consider the "PingPong" example (
examples/My/PingPong.pm and
examples/pingpong.pl):
Server Code:
package My::PingPong;
sub new {
my $self = shift;
my $class = ref($self) || $self;
bless {_num=>shift} => $class;
}
sub next {
my $self = shift;
$self->{_num}++;
}
Client Code:
use SOAP::Lite +autodispatch =>
uri => 'urn:',
proxy => 'http://localhost/';
my $p = My::PingPong->new(10); # $p->{_num} is 10 now, real object returned
print $p->next, "\n"; # $p->{_num} is 11 now!, object autobinded
STATIC AND DYNAMIC SERVICE DEPLOYMENT¶
Let us scrutinize the deployment process. When designing your SOAP server you
can consider two kind of deployment:
static and
dynamic. For
both, static and dynamic, you should specify "MODULE",
"MODULE::method", "method" or "PATH/" when
creating "use"ing the SOAP::Lite module. The difference between
static and dynamic deployment is that in case of 'dynamic', any module which
is not present will be loaded on demand. See the "SECURITY" section
for detailed description.
When statically deploying a SOAP Server, you need to know all modules handling
SOAP requests before.
Dynamic deployment allows extending your SOAP Server's interface by just
installing another module into the dispatch_to path (see below).
STATIC DEPLOYMENT EXAMPLE
use SOAP::Transport::HTTP;
use My::Examples; # module is preloaded
SOAP::Transport::HTTP::CGI
# deployed module should be present here or client will get
# 'access denied'
-> dispatch_to('My::Examples')
-> handle;
For static deployment you should specify the MODULE name directly.
You should also use static binding when you have several different classes in
one file and want to make them available for SOAP calls.
DYNAMIC DEPLOYMENT EXAMPLE
use SOAP::Transport::HTTP;
# name is unknown, module will be loaded on demand
SOAP::Transport::HTTP::CGI
# deployed module should be present here or client will get 'access denied'
-> dispatch_to('/Your/Path/To/Deployed/Modules', 'My::Examples')
-> handle;
For dynamic deployment you can specify the name either directly (in that case it
will be "require"d without any restriction) or indirectly, with a
PATH. In that case, the ONLY path that will be available will be the PATH
given to the
dispatch_to() method). For information how to handle this
situation see "SECURITY" section.
SUMMARY
dispatch_to(
# dynamic dispatch that allows access to ALL modules in specified directory
PATH/TO/MODULES
# 1. specifies directory
# -- AND --
# 2. gives access to ALL modules in this directory without limits
# static dispatch that allows access to ALL methods in particular MODULE
MODULE
# 1. gives access to particular module (all available methods)
# PREREQUISITES:
# module should be loaded manually (for example with 'use ...')
# -- OR --
# you can still specify it in PATH/TO/MODULES
# static dispatch that allows access to particular method ONLY
MODULE::method
# same as MODULE, but gives access to ONLY particular method,
# so there is not much sense to use both MODULE and MODULE::method
# for the same MODULE
);
In addition to this "SOAP::Lite" also supports an experimental syntax
that allows you to bind a specific URL or SOAPAction to a CLASS/MODULE or
object.
For example:
dispatch_with({
URI => MODULE, # 'http://www.soaplite.com/' => 'My::Class',
SOAPAction => MODULE, # 'http://www.soaplite.com/method' => 'Another::Class',
URI => object, # 'http://www.soaplite.com/obj' => My::Class->new,
})
"URI" is checked before "SOAPAction". You may use both the
"dispatch_to()" and "dispatch_with()" methods in the same
server, but note that "dispatch_with()" has a higher order of
precedence. "dispatch_to()" will be checked only after
"URI" and "SOAPAction" has been checked.
See also: EXAMPLE APACHE::REGISTRY USAGE, "SECURITY"
COMPRESSION¶
"SOAP::Lite" provides you option to enable transparent compression
over the wire. Compression can be enabled by specifying a threshold value (in
the form of kilobytes) for compression on both the client and server sides:
Note: Compression currently only works for HTTP based servers and
clients.
Client Code
print SOAP::Lite
->uri('http://localhost/My/Parameters')
->proxy('http://localhost/', options => {compress_threshold => 10000})
->echo(1 x 10000)
->result;
Server Code
my $server = SOAP::Transport::HTTP::CGI
->dispatch_to('My::Parameters')
->options({compress_threshold => 10000})
->handle;
For more information see COMPRESSION in HTTP::Transport.
SECURITY¶
For security reasons, the existing path for Perl modules (@INC) will be disabled
once you have chosen dynamic deployment and specified your own
"PATH/". If you wish to access other modules in your included
package you have several options:
- 1.
- Switch to static linking:
use MODULE;
$server->dispatch_to('MODULE');
Which can also be useful when you want to import something specific from the
deployed modules:
use MODULE qw(import_list);
- 2.
- Change "use" to "require". The path is only
unavailable during the initialization phase. It is available once more
during execution. Therefore, if you utilize "require" somewhere
in your package, it will work.
- 3.
- Wrap "use" in an "eval" block:
eval 'use MODULE qw(import_list)'; die if $@;
- 4.
- Set your include path in your package and then specify "use".
Don't forget to put @INC in a "BEGIN{}" block or it won't work.
For example,
BEGIN { @INC = qw(my_directory); use MODULE }
INTEROPERABILITY¶
Microsoft .NET client with SOAP::Lite Server¶
In order to use a .NET client with a SOAP::Lite server, be sure you use fully
qualified names for your return values. For example:
return SOAP::Data->name('myname')
->type('string')
->uri($MY_NAMESPACE)
->value($output);
In addition see comment about default encoding in .NET Web Services below.
SOAP::Lite client with a .NET server¶
If experiencing problems when using a SOAP::Lite client to call a .NET Web
service, it is recommended you check, or adhere to all of the following
recommendations:
- Declare a proper soapAction in your call
- For example, use "on_action( sub {
'http://www.myuri.com/WebService.aspx#someMethod'; } )".
- Disable charset definition in Content-type header
- Some users have said that Microsoft .NET prefers the value of the
Content-type header to be a mimetype exclusively, but SOAP::Lite specifies
a character set in addition to the mimetype. This results in an error
similar to:
Server found request content type to be 'text/xml; charset=utf-8',
but expected 'text/xml'
To turn off this behavior specify use the following code:
use SOAP::Lite;
$SOAP::Constants::DO_NOT_USE_CHARSET = 1;
# The rest of your code
- Use fully qualified name for method parameters
- For example, the following code is preferred:
SOAP::Data->name(Query => 'biztalk')
->uri('http://tempuri.org/')
As opposed to:
SOAP::Data->name('Query' => 'biztalk')
- Place method in default namespace
- For example, the following code is preferred:
my $method = SOAP::Data->name('add')
->attr({xmlns => 'http://tempuri.org/'});
my @rc = $soap->call($method => @parms)->result;
As opposed to:
my @rc = $soap->call(add => @parms)->result;
# -- OR --
my @rc = $soap->add(@parms)->result;
- Disable use of explicit namespace prefixes
- Some user's have reported that .NET will simply not parse messages that
use namespace prefixes on anything but SOAP elements themselves. For
example, the following XML would not be parsed:
<SOAP-ENV:Envelope ...attributes skipped>
<SOAP-ENV:Body>
<namesp1:mymethod xmlns:namesp1="urn:MyURI" />
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
SOAP::Lite allows users to disable the use of explicit namespaces through
the "use_prefix()" method. For example, the following code:
$som = SOAP::Lite->uri('urn:MyURI')
->proxy($HOST)
->use_prefix(0)
->myMethod();
Will result in the following XML, which is more palatable by .NET:
<SOAP-ENV:Envelope ...attributes skipped>
<SOAP-ENV:Body>
<mymethod xmlns="urn:MyURI" />
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
- Modify your .NET server, if possible
- Stefan Pharies <stefanph@microsoft.com>:
SOAP::Lite uses the SOAP encoding (section 5 of the soap 1.1 spec), and the
default for .NET Web Services is to use a literal encoding. So elements in
the request are unqualified, but your service expects them to be
qualified. .Net Web Services has a way for you to change the expected
message format, which should allow you to get your interop working. At the
top of your class in the asmx, add this attribute (for Beta 1):
[SoapService(Style=SoapServiceStyle.RPC)]
Another source said it might be this attribute (for Beta 2):
[SoapRpcService]
Full Web Service text may look like:
<%@ WebService Language="C#" Class="Test" %>
using System;
using System.Web.Services;
using System.Xml.Serialization;
[SoapService(Style=SoapServiceStyle.RPC)]
public class Test : WebService {
[WebMethod]
public int add(int a, int b) {
return a + b;
}
}
Another example from Kirill Gavrylyuk <kirillg@microsoft.com>:
"You can insert [ SoapRpcService()] attribute either on your
class or on operation level".
<%@ WebService Language=CS class="DataType.StringTest"%>
namespace DataType {
using System;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.Web.Services.Description;
[SoapRpcService()]
public class StringTest: WebService {
[WebMethod]
[SoapRpcMethod()]
public string RetString(string x) {
return(x);
}
}
}
Example from Yann Christensen <yannc@microsoft.com>:
using System;
using System.Web.Services;
using System.Web.Services.Protocols;
namespace Currency {
[WebService(Namespace="http://www.yourdomain.com/example")]
[SoapRpcService]
public class Exchange {
[WebMethod]
public double getRate(String country, String country2) {
return 122.69;
}
}
}
Special thanks goes to the following people for providing the above description
and details on .NET interoperability issues:
Petr Janata <petr.janata@i.cz>,
Stefan Pharies <stefanph@microsoft.com>,
Brian Jepson <bjepson@jepstone.net>, and others
TROUBLESHOOTING¶
- SOAP::Lite serializes "18373" as an integer, but I want it to be
a string!
- SOAP::Lite guesses datatypes from the content provided, using a set of
common-sense rules. These rules are not 100% reliable, though they fit for
most data.
You may force the type by passing a SOAP::Data object with a type specified:
my $proxy = SOAP::Lite->proxy('http://www.example.org/soapservice');
my $som = $proxy->myMethod(
SOAP::Data->name('foo')->value(12345)->type('string')
);
You may also change the precedence of the type-guessing rules. Note that
this means fiddling with SOAP::Lite's internals - this may not work as
expected in future versions.
The example above forces everything to be encoded as string (this is because
the string test is normally last and always returns true):
my @list = qw(-1 45 foo bar 3838);
my $proxy = SOAP::Lite->uri($uri)->proxy($proxyUrl);
my $lookup = $proxy->serializer->typelookup;
$lookup->{string}->[0] = 0;
$proxy->serializer->typelookup($lookup);
$proxy->myMethod(\@list);
See SOAP::Serializer for more details.
- "+autodispatch" doesn't work in Perl 5.8
- There is a bug in Perl 5.8's "UNIVERSAL::AUTOLOAD" functionality
that prevents the "+autodispatch" functionality from working
properly. The workaround is to use "dispatch_from" instead.
Where you might normally do something like this:
use Some::Module;
use SOAP::Lite +autodispatch =>
uri => 'urn:Foo'
proxy => 'http://...';
You would do something like this:
use SOAP::Lite dispatch_from(Some::Module) =>
uri => 'urn:Foo'
proxy => 'http://...';
- Problems using SOAP::Lite's COM Interface
- Can't call method "server" on undefined value
- You probably did not register Lite.dll using "regsvr32
Lite.dll"
- Failed to load PerlCtrl Runtime
- It is likely that you have install Perl in two different locations and the
location of ActiveState's Perl is not the first instance of Perl specified
in your PATH. To rectify, rename the directory in which the
non-ActiveState Perl is installed, or be sure the path to ActiveState's
Perl is specified prior to any other instance of Perl in your PATH.
- Dynamic libraries are not found
- If you are using the Apache web server, and you are seeing something like
the following in your webserver log file:
Can't load '/usr/local/lib/perl5/site_perl/.../XML/Parser/Expat/Expat.so'
for module XML::Parser::Expat: dynamic linker: /usr/local/bin/perl:
libexpat.so.0 is NEEDED, but object does not exist at
/usr/local/lib/perl5/.../DynaLoader.pm line 200.
Then try placing the following into your httpd.conf file and see if
it fixes your problem.
<IfModule mod_env.c>
PassEnv LD_LIBRARY_PATH
</IfModule>
- SOAP client reports "500 unexpected EOF before status line seen
- See "Apache is crashing with segfaults"
- Apache is crashing with segfaults
- Using "SOAP::Lite" (or XML::Parser::Expat) in combination with
mod_perl causes random segmentation faults in httpd processes. To fix, try
configuring Apache with the following:
RULE_EXPAT=no
If you are using Apache 1.3.20 and later, try configuring Apache with the
following option:
./configure --disable-rule=EXPAT
See http://archive.covalent.net/modperl/2000/04/0185.xml for more details
and lot of thanks to Robert Barta <rho@bigpond.net.au> for
explaining this weird behavior.
If this doesn't address the problem, you may wish to try
"-Uusemymalloc", or a similar option in order to instruct Perl
to use the system's own "malloc".
Thanks to Tim Bunce <Tim.Bunce@pobox.com>.
- CGI scripts do not work under Microsoft Internet Information Server
(IIS)
- CGI scripts may not work under IIS unless scripts use the ".pl"
extension, opposed to ".cgi".
- Java SAX parser unable to parse message composed by SOAP::Lite
- In some cases SOAP messages created by "SOAP::Lite" may not be
parsed properly by a SAX2/Java XML parser. This is due to a known bug in
"org.xml.sax.helpers.ParserAdapter". This bug manifests itself
when an attribute in an XML element occurs prior to the XML namespace
declaration on which it depends. However, according to the XML
specification, the order of these attributes is not significant.
http://www.megginson.com/SAX/index.html
Thanks to Steve Alpert (Steve_Alpert@idx.com) for pointing on it.
- Processing of XML encoded fragments
- "SOAP::Lite" is based on XML::Parser which is basically wrapper
around James Clark's expat parser. Expat's behavior for parsing XML
encoded string can affect processing messages that have lot of encoded
entities, like XML fragments, encoded as strings. Providing low-level
details, parser will call char() callback for every portion of
processed stream, but individually for every processed entity or newline.
It can lead to lot of calls and additional memory manager expenses even
for small messages. By contrast, XML messages which are encoded as
base64Binary, don't have this problem and difference in processing time
can be significant. For XML encoded string that has about 20 lines and 30
tags, number of call could be about 100 instead of one for the same string
encoded as base64Binary.
Since it is parser's feature there is NO fix for this behavior (let me know
if you find one), especially because you need to parse message you already
got (and you cannot control content of this message), however, if your are
in charge for both ends of processing you can switch encoding to base64 on
sender's side. It will definitely work with SOAP::Lite and it may
work with other toolkits/implementations also, but obviously I cannot
guarantee that.
If you want to encode specific string as base64, just do
"SOAP::Data->type(base64 => $string)" either on client or
on server side. If you want change behavior for specific instance of
SOAP::Lite, you may subclass "SOAP::Serializer", override
"as_string()" method that is responsible for string encoding
(take a look into "as_base64Binary()") and specify new
serializer class for your SOAP::Lite object with:
my $soap = new SOAP::Lite
serializer => My::Serializer->new,
..... other parameters
or on server side:
my $server = new SOAP::Transport::HTTP::Daemon # or any other server
serializer => My::Serializer->new,
..... other parameters
If you want to change this behavior for all instances of SOAP::Lite,
just substitute "as_string()" method with
"as_base64Binary()" somewhere in your code after
"use SOAP::Lite" and before actual processing/sending:
*SOAP::Serializer::as_string = \&SOAP::XMLSchema2001::Serializer::as_base64Binary;
Be warned that last two methods will affect all strings and convert
them into base64 encoded. It doesn't make any difference for SOAP::Lite,
but it may make a difference for other toolkits.
BUGS AND LIMITATIONS¶
- •
- No support for multidimensional, partially transmitted and sparse arrays
(however arrays of arrays are supported, as well as any other data
structures, and you can add your own implementation with SOAP::Data).
- •
- Limited support for WSDL schema.
- •
- XML::Parser::Lite relies on Unicode support in Perl and doesn't do entity
decoding.
- •
- Limited support for mustUnderstand and Actor attributes.
- MacOS
- Information about XML::Parser for MacPerl could be found here:
http://bumppo.net/lists/macperl-modules/1999/07/msg00047.html
Compiled XML::Parser for MacOS could be found here:
http://www.perl.com/CPAN-local/authors/id/A/AS/ASANDSTRM/XML-Parser-2.27-bin-1-MacOS.tgz
Transport Modules¶
SOAP::Lite allows one to add support for additional transport protocols, or
server handlers, via separate modules implementing the SOAP::Transport::*
interface. The following modules are available from CPAN:
- •
- SOAP-Transport-HTTP-Nginx
SOAP::Transport::HTTP::Nginx provides a transport module for nginx
(<http://nginx.net/>)
AVAILABILITY¶
You can download the latest version SOAP::Lite for Unix or SOAP::Lite for Win32
from the following sources:
* CPAN: http://search.cpan.org/search?dist=SOAP-Lite
You are welcome to send e-mail to the maintainers of SOAP::Lite with your
comments, suggestions, bug reports and complaints.
ACKNOWLEDGEMENTS¶
Special thanks to Randy J. Ray, author of
Programming Web Services with
Perl, who has contributed greatly to the documentation effort of
SOAP::Lite.
Special thanks to O'Reilly publishing which has graciously allowed SOAP::Lite to
republish and redistribute the SOAP::Lite reference manual found in Appendix B
of
Programming Web Services with Perl.
And special gratitude to all the developers who have contributed patches, ideas,
time, energy, and help in a million different forms to the development of this
software.
HACKING¶
Latest development takes place on GitHub.com. Come on by and fork it.
git@github.com:redhotpenguin/soaplite.git
Also see the HACKING file.
Actively recruiting maintainers for this module. Come and get it on!
REPORTING BUGS¶
Please use rt.cpan.org or github to report bugs. Pull requests are preferred.
COPYRIGHT¶
Copyright (C) 2000-2007 Paul Kulchenko. All rights reserved.
Copyright (C) 2007-2008 Martin Kutter
Copyright (C) 2013 Fred Moyer
LICENSE¶
This library is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.
This text and all associated documentation for this library is made available
under the Creative Commons Attribution-NoDerivs 2.0 license.
http://creativecommons.org/licenses/by-nd/2.0/
AUTHORS¶
Paul Kulchenko (paulclinger@yahoo.com)
Randy J. Ray (rjray@blackperl.com)
Byrne Reese (byrne@majordojo.com)
Martin Kutter (martin.kutter@fen-net.de)
Fred Moyer (fred@redhotpenguin.com)