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TSRAO's avatar
TSRAO
Occasional Contributor
3 years ago

How to compare 2 Json content from 2 different text files and return only the differences

Hi,   I found the way to save the Json response to a text file and compare both the file contents (the 2 Json responses saved from previous run and current run) by using the Groovy script. But for ...
TSRAO's avatar
TSRAO
Occasional Contributor

Hi KarelHusa, thanks for your response.

 

The requirement is like this,

  1. 1. Today I ran the test case(REST API) and got the response let's say A
  2. 2. Tomorrow if I run the same test case, I may get the same response or a different response if there any changes to our config file, let's say that is B

Now, I have two responses and I need to compare both the responses A and B (both A and B are Json responses), to make sure that there are no changes OR if there are any changes, what are they( I mean where exactly the changes are additions/deletions/modification to any values in the response etc.,).

 

So, I am sending the responses to a text file, and in my Groovy script I am hard coding the two file paths(Previous response and Current responses) in order to read the content from those two files. I want to avoid hard coded file paths from my Groovy script. Of course I am also trying to see if there are any other alternatives to do that comparison and return the differences from both the responses, to make it simple.

 

Thanks again!

KarelHusa's avatar
KarelHusa
Champion Level 1
3 years ago

TSRAO,

in such a case, you can save your reponses with the date in the filename (e.g., response-20221211.json).

 

Then, in the compare script just refer to yesterday date, i.e. response-20221211.json.

 

  • TSRAO's avatar
    TSRAO
    Occasional Contributor
    3 years ago

    Thanks KarelHusa!

     

    Not sure how to write the Groovy Script for generating the file with Date/TimeStamp in the file name, can you please suggest me!

    • nmrao's avatar
      nmrao
      Champion Level 3
      3 years ago

      TSRAO 

       

      Below statement can generate dyname value using date time so that it can be used for saving the filename.

       

      print java.time.ZonedDateTime.now().format(java.time.format.DateTimeFormatter.ofPattern("yyyyMMdd-HHmmss"))

      Now, if some content needs to saved into file, below will do

       

      def fileName = java.time.ZonedDateTime.now().format(java.time.format.DateTimeFormatter.ofPattern("yyyyMMdd-HHmmss"))

def fileContent = 'you can have your content or response into this variable'
//Save the content into file; you can also add the path below if you want file to be saved in different location
new File("${fileName}.json").write(fileContent)