1. Implementation of Web Services in Perl by Litis Abraham & Gomathy Sankara CS522 Fall 2001 Semester Project
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Web Services in Perl

2. Web Services Bind applications together over the Internet Utilize
Internet infrastructure
XML
Common standards by infrastructure provider
Rely upon
SOAP – Simple Object Access Protocol
WSDL – Web Services Description Language
UDDI – Universal Discovery, Description and Integration
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Web Services in Perl

3. source - http://www.webservices.org/
   
                                                                                                                                                        
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Web Services in Perl

4. SOAP Server
package World; sub new { bless {}, shift; }; sub HelloWorld { my ($self) return "Hello World\n"; }; 1;
use SOAP::Transport::HTTP; use World; SOAP::Transport::   -> dispatch_to('World')   -> handle;
SOAP Client
use SOAP::Lite; my $s = SOAP::Lite    ->uri('World')    ->proxy('
mycompany.com/soap/soapserver.cgi')    ->HelloWorld(); print $s->result();
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Web Services in Perl

5. SOAP Request XML Document that consists of an envelope, header & body
<?xml version="1.0" encoding="UTF-8"?> <SOAP-ENV:Envelope xmlns:SOAP-ENC=" SOAP-ENV:encodingStyle=" xmlns:xsi=" xmlns:SOAP-ENV=" xmlns:xsd=" <SOAP-ENV:Body> <namesp1:HelloWorld xmlns:namesp1="World"/> </SOAP-ENV:Body> </SOAP-ENV:Envelope>
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Web Services in Perl

6. Conclusion Web Services Perl
Foundation for a paradigm shift in the internet
Integration of applications regardless of languages or platforms
Perl
Best suited for building internet applications
Ideal for text extraction using regular expressions
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Web Services in Perl

7. References
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Web Services in Perl