{"action":"closed","issue":{"url":"https://api.github.com/repos/postmanlabs/newman/issues/345","repository_url":"https://api.github.com/repos/postmanlabs/newman","labels_url":"https://api.github.com/repos/postmanlabs/newman/issues/345/labels{/name}","comments_url":"https://api.github.com/repos/postmanlabs/newman/issues/345/comments","events_url":"https://api.github.com/repos/postmanlabs/newman/issues/345/events","html_url":"https://github.com/postmanlabs/newman/issues/345","id":139087816,"number":345,"title":"The request signature we calculated does not match the signature you provided.","user":{"login":"willrichboa","id":14791799,"avatar_url":"https://avatars.githubusercontent.com/u/14791799?v=3","gravatar_id":"","url":"https://api.github.com/users/willrichboa","html_url":"https://github.com/willrichboa","followers_url":"https://api.github.com/users/willrichboa/followers","following_url":"https://api.github.com/users/willrichboa/following{/other_user}","gists_url":"https://api.github.com/users/willrichboa/gists{/gist_id}","starred_url":"https://api.github.com/users/willrichboa/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/willrichboa/subscriptions","organizations_url":"https://api.github.com/users/willrichboa/orgs","repos_url":"https://api.github.com/users/willrichboa/repos","events_url":"https://api.github.com/users/willrichboa/events{/privacy}","received_events_url":"https://api.github.com/users/willrichboa/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2016-03-07T20:39:48Z","updated_at":"2016-03-08T07:21:45Z","closed_at":"2016-03-08T07:21:45Z","body":"Hey I am attempting to execute a POST request that is signed by AWS signature v4.   My POST request is using the header \"Content-Type\":\"application/json\".  This works great as long as you don't use a variable in the body of the POST request.  When you attempt to use a variable (environment or data) in the request body the signature calculation fails and I get the error message in the title.  I suspect that the signature might be calculated before the variables are substituted causing the inconsistency.\r\n\r\nCould you take a look at this and let me know if you can reproduce this?\r\n"}}