Web Service Basics and NWS Setup

Web Service Architecture
Prem Krishna Chettri

Table of Contents
 What’s Web Service?
 Why Web Service?
 Architecture Overview
 XML
 SOAP
 WSDL
 NetSuite Web Service

What’s Is Web Service?
 Web services are application programming interfaces
(API) or Web APIs that are accessed via some
protocols like HTTP.
 “Software application identified by a URI, whose
interfaces and bindings are capable of being
defined, described, and discovered as XML artifacts”
– W3C Web Services Architecture
Requirements, Oct. 2002

Why Web Services?
 Allow companies to reduce the cost of doing e-
business, to deploy solutions faster
 Need a common program-to-program communications
model
 Allow heterogeneous applications to be integrated
more rapidly, easily and less expensively
 Facilitate deploying and providing access to business
functions over the Web

XML
 XML Inherited from SGML which is a markup
language like HTML.
 XML stands for Extensible Markup Language
because we can Extend its capability.
 XML uses parser to decode the file content.
Example :-
 <?xml version="1.0"?>
 <note>
 <to>Receiver</to>
 <from>Sender </from>
 <heading>Reminder</heading>
 <body>Message Body!</body>
 </note>

SOAP: Simple Object
Access Protocol
 What is SOAP?
 SOAP is a communication protocol
 SOAP is for communication between applications
 SOAP is a format for sending messages
 SOAP is designed to communicate via Internet
 SOAP is platform independent
 SOAP is language independent
 SOAP is based on XML
 SOAP is simple and extensible
 SOAP will be developed as a W3C standard

SOAP Message Structure
 Request and Response messages
 Request invokes a method on a remote
object
 Response returns result of running the
method
 SOAP specification defines an
“envelop”
 “envelop” wraps the message itself
 Message is a different vocabulary
 Namespace prefix is used to distinguish
the two parts
Application-specific
message vocabulary
SOAP Envelop
vocabulary

SOAP Request Message
<?xml version="1.0"?>
<soap:Envelope
xmlns:soap="http://www.w3.org/2001/12/soap-envelope"
soap:encodingStyle="http://www.w3.org/2001/12/soap-encoding">
<soap:Body xmlns:m="http://www.stock.org/stock">
</soap:Body>
</soap:Envelope>
<m:GetStockPrice>
<m:StockName>IBM</m:StockName>
</m:GetStockPrice>
SOAP Envelope
Message
SOAP Envelope
Namespace
Message
Namespace

SOAP Response Message
<?xml version="1.0"?>
<soap:Envelope
xmlns:soap="http://www.w3.org/2001/12/soap-envelope"
soap:encodingStyle="http://www.w3.org/2001/12/soap-encoding">
<soap:Body xmlns:m="http://www.stock.org/stock">
</soap:Body>
</soap:Envelope>
<m:GetStockPriceResponse>
<m:Price>34.5</m:Price>
</m:GetStockPriceResponse>
SOAP Envelope
Message
Result
returned in
Body

Web Services Description Language
 What is WSDL?
 WSDL is written in XML
 WSDL is an XML document
 WSDL is used to describe Web services
 WSDL is also used to locate Web services
 WSDL is not yet a W3C standard
 Operational information about the service
 Location of the service
 Service interface
 Implementation details for the service interface

WSDL Document Structure (1/2)
 <portType> element
 Defines a web service, the operations that can be
performed, and the messages that are involved
 <message> element
 Defines the data elements of an operation
 consists of one or more parts.
 The parts can be compared to the parameters of a
function call in a traditional programming language

WSDL Document Structure (2/2)
 <types> element
 Defines the data type that are used by the web
service
 For maximum platform neutrality, WSDL uses XML
Schema syntax to define data types
 <binding> element
 Defines the message format and communication
protocols used by the web service

NetSuite WSDL
 <defination xmlns:..>
 <types>
 <xsd:schema xmlns:xsd=“http://www.w3.org/2001/XMLSchema”>
 <xsd:import namespace=“ “ schemaLocation=“ ”>
 <xsd:import namespace=“ “ schemaLocation=“ ”>
 ……….
 </xsd:schema>
 </types>
 <message name=“ ”>
 <part name =“ “ element =“ ”>
 </message>
 <portType name=“NetSuitePortType”>
 <operation name=“Login”>
 <input name = “ login Request” message=“tns:loginRequest”>
 <outpur name=“loginResponse” message=“tns:loginResponse”>
 </operation>
 </portType>

WSDL Continuation
 <binding name="NetSuiteBinding" type="tns:NetSuitePortType">
 <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
 <operation name="login">
 <soap:operation soapAction="login"/>
 <input name="loginRequest">
 <soap:header message="tns:headers" part="applicationInfo" use="literal"/>
 <soap:header message="tns:headers" part="partnerInfo" use="literal"/>
 <soap:body use="literal"/>
 </input>
 <output name="loginResponse">
 <soap:body use="literal"/>
 </output>
 <fault name="InsufficientPermissionFault">
 <soap:fault name="InsufficientPermissionFault" use="literal"/>
 </fault>
 </operation>
 </binding>
 <service name="NetSuiteService">
 <port name="NetSuitePort" binding="tns:NetSuiteBinding">
 <soap:address location="https://webservices.netsuite.com/services/NetSuitePort_2012_2"/>
 </port>
 </service>
 </definitions>

XML Schema Definition (XSD)
 An XML schema describes the structure of an
XML document.
NetSuite XSD’s:-
1>core.xsd,
2>messages.xsd,
3>faults.xsd,
4>common.xsd etc.

Web Service Model (2/3)
 Roles in Web Service architecture
 Service provider
 Owner of the service
 Platform that hosts access to the service
 Service requestor
 Business that requires certain functions to be satisfied
 Application looking for and invoking an interaction with a
service
 Service registry
 Searchable registry of service descriptions where service
providers publish their service descriptions

Web Service Model (3/3)
 Operations in a Web Service Architecture
 Publish
 Service descriptions need to be published in order for
service requestor to find them
 Find
 Service requestor retrieves a service description directly
or queries the service registry for the service required
 Bind
 Service requestor invokes or initiates an interaction with
the service at runtime

NetSuite WebServices
 General Setup (UI) :-
 To enable the Web services feature:
1. As administrator, click Setup > Company > Enable Features.
2. Click the SuiteCloud tab.
3. Select the Web Services check box.
4. Click Save.
 Enable Show Internal ID from :-
1. Home > Set Preferences.
2. Click the General Tab.
3. check the Show Internal IDs box.

NetSuite IDE Setup
 Project Setup :-
1> Install the IDE ( Visual Studio or Eclipse).
2> Create a New Project.
3> Add Web Reference. Using Below given URL’s
 WSDL URL :-
https://webservices.netsuite.com/wsdl/v2012_2_0/netsuite.wsdl
 SOAP URL :-
https://webservices.netsuite.com/services/NetSuitePort_2012_2
Note :- Use dynamic method to get the correct service url’s by getDataCenterUrls() api.
 WebService Listener :-
https://webservice.na1.netsuite.com
 Schema Browser (For Reference):-
https://system.netsuite.com/help/helpcenter/en_US/SchemaBrowser/indexv2012_2_0.html

Web Services Class and API’s
 “NetSuiteService” Class is a primary Class
exposed by NetsuiteWeb Interface.
 It has exposed Events and API’s
Example :- add, delete, update, initialize
get, search etc.

Web Service Basics and NWS Setup

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