Base64 encode using Jmeter

In my application, we want to encode one of the jmeter varible to base64 variable  . We did this using using Bean shell pre processor. Below is the scenario

Scenario: I want to encode jmeter variable (session)  to Base64 and need to pass this value to Jmeter Sampler. Below is the steps to do this 

Download this project from GitHub

Step 1: Get dynamic session value using Regular expression extractor.
Add Thread Group to Test Plan and Add the sampler to Thread Group  , provide the necessary details to Http Sampler

IP:raw.githubusercontent.com
Port: 80
Path:/mcheepati/api/master/homepage
Method: Get


Step 2: Add the Regular expression extractor post processor as a child to Http Sampler. And add the below values to "Regular expression extractor" 



Step 3:Pass the encoded Base64 value(session) as a variable to http post method in this step.
Add the Http sampler as a child to Thread group 

 

Add the bean shell "pre Processor" as a child to this Http sampler and the below code to bean shell processor 



import org.apache.commons.codec.binary.Base64;

String emailIs= vars.get("email");

byte[] encryptedUid = Base64.encodeBase64(emailIs.getBytes());
      vars.put("genStringValue",new String(encryptedUid));
Note: We added Pre Processor as child, because  pre processor will executes before running the Http sampler.


Step 4:Save and run the Jmeter script and verify the post call values for Base64 encoded value.
Actual Value is              :jdwqoeendwqqm12sdw
Base64 encoded value is:amR3cW9lZW5kd3FxbTEyc2R3




Validate the jmeter Base64 response values from online Base64 http://www.base64encode.org/