How do I extract a value from a JSON response? - ruby

Question

I am writing some tests in Ruby using RestClient. The test is working fine and the response is in JSON however when I parse the JSON and try to extract the values I am looking for I get an error saying IndexError: key not found
IMO, my code should work. The JSON is:
{"user":{"#xmlns":{"dvi":"http:\/\/xxxx","a":"http:\/\/xxxx","$":"http:\/\/xxxx"},"link":[{"#rel":"self","$":"http:\/\/xxxx"},{"#rel":"user","$":"http:\/\/xxxx"},{"#rel":"usage","$":"xxxx"},{"#rel":"repositories","$":"http:\/\/xxxx"},{"#rel":"shares","$":"http:\/\/xxxx"},{"#rel":"shareMemberships","$":"http:\/\/xxxx"}],"phone":{"$":"3518012343001"},"email":{"$":""},"firstName":{"$":"Jim"},"lastName":{"$":"Joe"},"uid":{"$":"91bc7a72bc724e5e9b53e688dd105ed4"},"accountName":{"$":"3518012343001"},"notificationMethod":{"$":"email sms"},"accountStatus":{"$":"Active"},"serviceLevel":{"$":"5"},"repositoryCount":{"$":"1"},"usage":{"allowed":{"$":"5368709120"},"total":{"$":"1024"}},"contactEmail":{"$":"jim#joe.com"}}}
and my code is:
result = jsonabove
jdoc = JSON.parse(result)
notificationMethod = jdoc.fetch("notificationMethod")
return notificationMethod

Answer 1

That's happening because the notificationMethod key isn't the first level key in your hash. After preparing theJSON#parse method, you have a hash with only one key called user. You should get the value by this key and then apply your notificationMethod key. It looks like this:
require 'json'
result = <<HERE
{"user":{"......"}}
HERE
jdoc = JSON.parse(result)
notificationMethod = jdoc.fetch("user").fetch("notificationMethod")
puts notificationMethod