Unable to Fetch JSON Values In Chef Recipe

Just getting started with using chef recently.  I have created custom JSON in AWS Opswork and trying to access it as an attribute in Chef recipe, but its failing to grab the JSON values. JSON file looks like.

{
 "normal": { 
 "filbeat": {
 "log_path" : "/var/log/*.log",
 "hosts" : "Some Random Host ID", 
 "port"  : 5000
 }
 }
}

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and I am trying to catch it in recipe as,

log = node['filebeat']['log_path']
hosts = node['filebeat']['hosts']
port = node['filebeat']['port']

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But it failed, I have also tried without 'normal'. I got the some []null class error.