Web services Hand_Out

www.ishatrainingsolutions.org
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Performance Testing for Web Services Using
LoadRunner

What are Web Services?
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If the Services are made available on WEB for Code
Consumption, then they are called Web Services.Web
Services
Web Services
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Are there any types of
Web Services?
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Web Services
SOAP REST
Simple Object Access Protocol Representation State Transfer
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WSInterface
Consumer
Application
.Net javajava
XML is the Technology independent format and that can be used here (Extensible Markup language)
WSXMLConsumer
Application
.Net
java
This XML is called WSDL
Web Service Definition Language
Understanding SOAP
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Logout()
Leave Application()
COmpayUpdates()
SalaryDetails()
------------
Java
Client Application
Login()
.Net
Web Service
When you exchange the information between the Client App and WS, it should be in the language neutral
format.
XML
SOA
P
Simple Object Access Protocol
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RESTful Web Services
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www.marko.com/getproducts/1
Resource Based URI’s
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Difference between RESTful Web Services and
SOAP Web Services
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Logout()
buy()
Logout()
------------
Client
Application
GetProducts()
Mark’s Webservice
XML
SOAP
Protocol
Andy’s Application
Protocol
Logout()
Purchase()
Logout()
------------
GetProducts()
XML/ JSON/ Plain
text
No Protocol
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RESTful WS
HTTP
Messages are transferred using HTTP.
Plain and simple – Not flab
In reality this is all you need to get the job
done. Or in other words, send the data from
Point A to Point B
Messages are transferred using HTTP.
Not As simple as REST. – You an see the
coach which is the extra flab
Coach is your guidelines or protocol and
presence of the contract which is the WSDL.
Added Security at the cost of performance
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SOAP WS

SOAP WS
A committee decides the rules and as a developer you follow the rules.
Even if single rule is not followed, then the web service you developed is not
SOAP
RESTful WS
No Rules. Developer has totally flexibility
Infact, you have terms like
a. Completely RESTful
b. Not fully RESTful
c. Not RESTful
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SOAP RESTful
Simple Object Access Protocol Representation State Transfer
Older of the two Modern
WSDL WADL (Very few developers use this).
REST uses URI for each resource that is used in
web service
SOAP Protocol REST is an architectural style that is used to
describe and define web services
XML JSON,HTML,XML, plain text
Performance wise little slow Fast / Lightweight
SOAP is more secure as it has its own
security and well defined standards– Banking,
Finance, Health Care
Not as secured by SOAP
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Creating Scripts for SOAP
Scripts needs to be created for doing the
Performance Testing
VuGen Component is used for creating these scripts
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Scripts can be created by one of the following ways
Using Web HTTP / HTML Protocol
Using Web Services Protocol
(
Using
web_custom_reque
st API / Function
By Recording Using Import
WSDL File
By
Recording
By
Importing
SOAP File
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Using Web HTTP / HTML Protocol
Using
web_custom_reque
st API / Function
By Recording
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Using web_url
Using web_submit_data
Using web_link
Using web_submit_form
A web request in http / html protocol can be created using …
Using web_custom_request
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Script Enhancements
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Transactions
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Transactions
• Transactions measures the system performance resulting from one or
more user actions
• Only means of measuring application response time and transaction
pass/fail count
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Parameterization
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What is Parameterization?
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Parameterization
• It is a process by which a hard coded value is replaced with a parameter in the
script.
• This option helps the script to execute with multiple values, thereby, simulating a
real time scenario
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How to do Parameterization?
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Parameterization
Steps Involved for Parametrization
• Create a Parameter
• Assign the values to the Parameter
• Replace the Hard-coded values in the script with these Parameters
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India
United States
Australia
Ethopia
Country_Name
Replace the constant with
parameter
Assign value to this parameter
Create the LR Parameter
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Correlation
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Why Correlation?
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Correlation
• There are some dynamic values in the script which changes from iteration to
iteration.
• Since these values are dynamic in nature, their value changes with each execution.
• So, there is a need for these dynamic values to be captured from server response and
pass it subsequently to any part of script.
• Process of capturing these values using web_Reg_Save_param_Ex function and pass
it wherever required is called correlation.
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Replay the script twice and check for the differences using
diffchecker
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Correlation
• There are some dynamic values in the script which changes from iteration to iteration.
• Since these values are dynamic in nature, their value changes with each execution.
• So, there is a need for these dynamic values to be captured from server response and
pass it subsequently to any part of script.
• Process of capturing these values using web_Reg_Save_param_Ex function and pass it
wherever required is called correlation.
+91-8019952427

Correlation
• There are some dynamic values in the script which changes from iteration to
iteration.
• Since these values are dynamic in nature, their value changes with each
execution.
• So, there is a need for these dynamic values to be captured from server response
and pass it subsequently to any part of script.
• Process of capturing these values using web_Reg_Save_param_Ex function and
pass it wherever required is called correlation.
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• Identify the values to be correlated : Record the same script twice and compare both
the recordings to identify the values
• Search for that value in the server response: Once, the value is identified, check for
that value in the server response to identify left boundary and right boundary
• Correlate: Correlate that value using web_Reg_save_param_ex using LB and RB
• Replace: Replace the dynamic value present in the script with the LR parameter of
correlation function.
Correlation
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Creating Scripts for SOAP Request Using
Web Services Protocol
Using Web Services Protocol
Using Import
WSDL File
By Recording
By Importing
SOAP File
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Sample Projects used for this course
CountryInfo Service Project
Sample SOAP Project Core
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Installing Additional components
wse2.0
wse3.0
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How to Handle Dynamic values (Session ID’s)
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Using Input and Output Arguments
Using lr_xml_get_values
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Logout
Session ID
Login
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Handle Dynamic values (Session ID’s) using input and output
arguments
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Handle Dynamic values (Session ID’s) using lr_xml_get_values
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REST Services
Representational State Transfer
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Services
SOAP REST
Does it follow any protocol? “SET OF RULES”
Does it have a WSDL File?
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Installation of POSTMAN
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Services
SOAP REST
SOAPUI Tool POSTMAN
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Sample RESTful Service
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XML
JSON
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Project Implementations
We have implemented multiple projects on LoadRunner, Jmeter, NeoLoad, Etc… for
different Clients
If you need our support for your organization, Pls contact us.
Recently we have implemented a Performance Testing Project with 400k users for
“Minister of Education Saudi Arabia” on LoadRunner Cloud successfully
Linkedin Profile: https://www.linkedin.com/in/kumar-gupta/

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Project Implementations
Testimonial for the “Minister of Education Saudi Arabia” project

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Trainings Provided by US
We provide trainings on
 Performance Engineering Basics
 Performance Engineering Advance
 Performance engineering Cloud.
 AppDynamics
 Dynatrace
 Jmeter Core to Master Level Course
 (Contd…..)

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We provide trainings on (Contd….)
 Performance Testing Using LoadRunner
 Performance Testing using JmeterTruClient Protocol using LoadRunner
 Performance Testing of WebServices using LoadRunner
 SAP GUI LoadRunner
 Mobile Performance Testing Using LoadRunner
 (Contd…..)

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We provide trainings on (Contd….)
 Performance Testing using NeoLoad
 Performance Testing Using OATS.
 Silk Performer

Web services Hand_Out

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