{"action":"created","issue":{"url":"https://api.github.com/repos/jupyter/jupyter_client/issues/148","repository_url":"https://api.github.com/repos/jupyter/jupyter_client","labels_url":"https://api.github.com/repos/jupyter/jupyter_client/issues/148/labels{/name}","comments_url":"https://api.github.com/repos/jupyter/jupyter_client/issues/148/comments","events_url":"https://api.github.com/repos/jupyter/jupyter_client/issues/148/events","html_url":"https://github.com/jupyter/jupyter_client/issues/148","id":143722745,"number":148,"title":"Doubt about how to trigger `history_request` requests","user":{"login":"castarco","id":251364,"avatar_url":"https://avatars.githubusercontent.com/u/251364?v=3","gravatar_id":"","url":"https://api.github.com/users/castarco","html_url":"https://github.com/castarco","followers_url":"https://api.github.com/users/castarco/followers","following_url":"https://api.github.com/users/castarco/following{/other_user}","gists_url":"https://api.github.com/users/castarco/gists{/gist_id}","starred_url":"https://api.github.com/users/castarco/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/castarco/subscriptions","organizations_url":"https://api.github.com/users/castarco/orgs","repos_url":"https://api.github.com/users/castarco/repos","events_url":"https://api.github.com/users/castarco/events{/privacy}","received_events_url":"https://api.github.com/users/castarco/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":1,"created_at":"2016-03-26T16:02:03Z","updated_at":"2016-03-26T16:20:18Z","closed_at":null,"body":"Hello,\r\n\r\nAs I commented in another issue, I'm developing a new Jupyter kernel for the PHP language.\r\nNow I'm working on the `history_request` code, but I don't know hot to trigger a `history_request` request from the Jupyter notebook web UI (and I'm not sure of having understood the way this request should be responded).\r\n\r\nCorrect me if I'm wrong please. When a `history_request` arrives to the kernel, the kernel has to respond with an array of previous commands meeting the specified restrictions.\r\n\r\nThank you for your time!"},"comment":{"url":"https://api.github.com/repos/jupyter/jupyter_client/issues/comments/201880487","html_url":"https://github.com/jupyter/jupyter_client/issues/148#issuecomment-201880487","issue_url":"https://api.github.com/repos/jupyter/jupyter_client/issues/148","id":201880487,"user":{"login":"takluyver","id":327925,"avatar_url":"https://avatars.githubusercontent.com/u/327925?v=3","gravatar_id":"","url":"https://api.github.com/users/takluyver","html_url":"https://github.com/takluyver","followers_url":"https://api.github.com/users/takluyver/followers","following_url":"https://api.github.com/users/takluyver/following{/other_user}","gists_url":"https://api.github.com/users/takluyver/gists{/gist_id}","starred_url":"https://api.github.com/users/takluyver/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/takluyver/subscriptions","organizations_url":"https://api.github.com/users/takluyver/orgs","repos_url":"https://api.github.com/users/takluyver/repos","events_url":"https://api.github.com/users/takluyver/events{/privacy}","received_events_url":"https://api.github.com/users/takluyver/received_events","type":"User","site_admin":false},"created_at":"2016-03-26T16:20:18Z","updated_at":"2016-03-26T16:20:18Z","body":"Hi again :-)\n\nThe notebook doesn't use the history messages. The qt console makes a\nhistory request for the last 1000 entries when it starts up, for the up\narrow history. I think many kernels don't bother implementing those\nmessages at all - you don't lose much functionality.\n"}}