{"action":"created","issue":{"url":"https://api.github.com/repos/akka/akka/issues/20276","repository_url":"https://api.github.com/repos/akka/akka","labels_url":"https://api.github.com/repos/akka/akka/issues/20276/labels{/name}","comments_url":"https://api.github.com/repos/akka/akka/issues/20276/comments","events_url":"https://api.github.com/repos/akka/akka/issues/20276/events","html_url":"https://github.com/akka/akka/issues/20276","id":147258214,"number":20276,"title":"ExecutionContext in Marshal/Unmarshal#to could be optional","user":{"login":"ktoso","id":120979,"avatar_url":"https://avatars.githubusercontent.com/u/120979?v=3","gravatar_id":"","url":"https://api.github.com/users/ktoso","html_url":"https://github.com/ktoso","followers_url":"https://api.github.com/users/ktoso/followers","following_url":"https://api.github.com/users/ktoso/following{/other_user}","gists_url":"https://api.github.com/users/ktoso/gists{/gist_id}","starred_url":"https://api.github.com/users/ktoso/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ktoso/subscriptions","organizations_url":"https://api.github.com/users/ktoso/orgs","repos_url":"https://api.github.com/users/ktoso/repos","events_url":"https://api.github.com/users/ktoso/events{/privacy}","received_events_url":"https://api.github.com/users/ktoso/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/akka/akka/labels/0%20-%20new","name":"0 - new","color":"ffffff"},{"url":"https://api.github.com/repos/akka/akka/labels/discuss","name":"discuss","color":"bfe5bf"}],"state":"open","locked":false,"assignee":null,"milestone":{"url":"https://api.github.com/repos/akka/akka/milestones/82","html_url":"https://github.com/akka/akka/milestones/2.4.4","labels_url":"https://api.github.com/repos/akka/akka/milestones/82/labels","id":1677650,"number":82,"title":"2.4.4","description":null,"creator":{"login":"ktoso","id":120979,"avatar_url":"https://avatars.githubusercontent.com/u/120979?v=3","gravatar_id":"","url":"https://api.github.com/users/ktoso","html_url":"https://github.com/ktoso","followers_url":"https://api.github.com/users/ktoso/followers","following_url":"https://api.github.com/users/ktoso/following{/other_user}","gists_url":"https://api.github.com/users/ktoso/gists{/gist_id}","starred_url":"https://api.github.com/users/ktoso/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ktoso/subscriptions","organizations_url":"https://api.github.com/users/ktoso/orgs","repos_url":"https://api.github.com/users/ktoso/repos","events_url":"https://api.github.com/users/ktoso/events{/privacy}","received_events_url":"https://api.github.com/users/ktoso/received_events","type":"User","site_admin":false},"open_issues":53,"closed_issues":18,"state":"open","created_at":"2016-04-01T08:39:45Z","updated_at":"2016-04-10T19:56:48Z","due_on":null,"closed_at":null},"comments":1,"created_at":"2016-04-10T19:56:29Z","updated_at":"2016-04-10T19:57:13Z","closed_at":null,"body":"Given:\r\n\r\n```scala\r\ndef to[B](implicit um: Unmarshaller[A, B], ec: ExecutionContext, mat: Materializer): Future[B] = um(value)\r\n```\r\n\r\n`ec` could have a default value (well, null), in which case we'd use `mat.executionContext`.\r\n\r\nYay or Meh – Discuss :wink: \r\n\r\n**Upside** is making marshalling infra less confusing – if people forget the execution context it fails to compile in mystical ways now.\r\n**Downside** do we actually want the materializer dispatcher be used for the marshalling future here? Hm...."},"comment":{"url":"https://api.github.com/repos/akka/akka/issues/comments/208052680","html_url":"https://github.com/akka/akka/issues/20276#issuecomment-208052680","issue_url":"https://api.github.com/repos/akka/akka/issues/20276","id":208052680,"user":{"login":"ktoso","id":120979,"avatar_url":"https://avatars.githubusercontent.com/u/120979?v=3","gravatar_id":"","url":"https://api.github.com/users/ktoso","html_url":"https://github.com/ktoso","followers_url":"https://api.github.com/users/ktoso/followers","following_url":"https://api.github.com/users/ktoso/following{/other_user}","gists_url":"https://api.github.com/users/ktoso/gists{/gist_id}","starred_url":"https://api.github.com/users/ktoso/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ktoso/subscriptions","organizations_url":"https://api.github.com/users/ktoso/orgs","repos_url":"https://api.github.com/users/ktoso/repos","events_url":"https://api.github.com/users/ktoso/events{/privacy}","received_events_url":"https://api.github.com/users/ktoso/received_events","type":"User","site_admin":false},"created_at":"2016-04-10T19:57:13Z","updated_at":"2016-04-10T19:57:13Z","body":"Due to bin compat this would be good to decide before un-experimentaling akka-http."}}