I am writing code using LWP module ( to send the HTTP request) I am sending HTTP request with following content: 
$req->content('{"type":"mcc","expression":"716*","order":1,"match-type
+":"regex-match","category"->'$location_id'}')

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I want to pass the variable to the "category" part, how Can I pass the variable "$location_id" ( variable is already defined and having some value.)

In reply to How to pass variable in the LWP module by bhushanQA

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