Parse JSON Object with Jenkins

Jenkins itself is not able to parse JSON response body. However, we can use Python with the built-in json library to parse JSON object within command-line.

For example, if we request the URL like http://md5.jsontest.com/?text=example_text , this will return the values as

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{
  md5: "fa4c6baa0812e5b5c80ed8885e55a8a6",
  original: "example_text"
}

With the help of Python json library, we can do something like

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Url=http://md5.jsontest.com/?text=example_text
Md5Info=`curl $Url -k | python -c "import sys, json; print json.load(sys.stdin)['md5']"`
echo $Md5Info

This will yield outputs like:

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    fa4c6baa0812e5b5c80ed8885e55a8a6

And we can integrate this script with Jenkins to do things like