Testing SOAP/REST Web Services Using JMeter

July 2014

Representational Site Transfer (REST)

• The most popular RESTs include:1. GET2. POST3. PUT4. DELETE

• The response return status codes indicate success or failure, along with any applicable headers. JSON represents the affected fields (or nothing) in the message-body.

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How to Write a JMeter Script with GET (1)GET is the easiest and most common request method.

To write a JMeter script with GET:1.Add an HTTP Request to your Thread Group.2.Fill in the Server Name or IP, path, and select the GET method.

– For example, we use validate.jsontest.com as Server Name and ‘/’ as path3.If your API request contains query parameters, you may specify them in [a] path (for example, ‘/?json=[1:1]’) or in [a] Parameters area:

1. Name: json2. Value: [1:1]

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How to Write a JMeter Script with GET (2)04

4. Add the View Results Tree, and run the script.– Here you’ll find the sampler result, request, and response data of your request.

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How to Write a JMeter Script with GET (3)05

• With POST requests, you can fill both the body and the headers. You can also specify query parameters in path.

• The HTTP headers, which contain metadata, are tightly defined by the HTTP spec. They can only contain plain text and must be formatted in a certain manner.

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How to Write a JMeter Script with POST (1)06

• To specify headers, you’ll need the HTTP Header Manager with the most common headers. These include Content-Type and Accept:– Content-Type : This entity-header field indicates the media type of

the entity-body sent to the recipient.– Accept: This can be used to specify certain media types which are

acceptable for the response. You can use a user agent to simulate different behaviors of various browsers.

• Post Body can be useful for the following requests: GWT RPC HTTP, JSON REST HTTP, XML REST HTTP and SOAP HTTP.

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How to Write a JMeter Script with POST (2)07

For instance, when using the server name: www.webservicex.net

Path: /periodictable.asmxBody:

<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"> <soap:Body><GetAtoms xmlns="http://www.webserviceX.NET" /> </soap:Body></soap:Envelope>And header: Content-Type: text/xml

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How to Write a JMeter Script with POST (3)08

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• You can configure other requests similar to GET and POST, using required methods, path, parameters, or body and headers.

• Please note that the webservice (SOAP) request is depreciated and the SOAP/XML-RPC request is active. Please use the HTTP_Request instead.

How to Write a JMeter Script with POST (4)09

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How to Write a JMeter Script with POST (5)10

Results of the HTTP Request Test

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For more information about Performance Testing and JMeter:

BlazeMeter.com/blog/ support@blazemeter.com @BlazeMeter

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