{"action":"created","issue":{"url":"https://api.github.com/repos/elasticsearch/logstash/issues/2442","labels_url":"https://api.github.com/repos/elasticsearch/logstash/issues/2442/labels{/name}","comments_url":"https://api.github.com/repos/elasticsearch/logstash/issues/2442/comments","events_url":"https://api.github.com/repos/elasticsearch/logstash/issues/2442/events","html_url":"https://github.com/elasticsearch/logstash/pull/2442","id":55654255,"number":2442,"title":"Document how to check for the presence of a field.","user":{"login":"Wilfred","id":70800,"avatar_url":"https://avatars.githubusercontent.com/u/70800?v=3","gravatar_id":"","url":"https://api.github.com/users/Wilfred","html_url":"https://github.com/Wilfred","followers_url":"https://api.github.com/users/Wilfred/followers","following_url":"https://api.github.com/users/Wilfred/following{/other_user}","gists_url":"https://api.github.com/users/Wilfred/gists{/gist_id}","starred_url":"https://api.github.com/users/Wilfred/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Wilfred/subscriptions","organizations_url":"https://api.github.com/users/Wilfred/orgs","repos_url":"https://api.github.com/users/Wilfred/repos","events_url":"https://api.github.com/users/Wilfred/events{/privacy}","received_events_url":"https://api.github.com/users/Wilfred/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2015-01-27T18:18:20Z","updated_at":"2015-01-27T18:22:57Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/elasticsearch/logstash/pulls/2442","html_url":"https://github.com/elasticsearch/logstash/pull/2442","diff_url":"https://github.com/elasticsearch/logstash/pull/2442.diff","patch_url":"https://github.com/elasticsearch/logstash/pull/2442.patch"},"body":"It's possible to write a conditional in the logstash configuration to check for the presence of a field. It's not obvious from the docs how to do this. This pull request documents this feature, and gives an example.\r\n\r\nThis is an updated version of #1368."},"comment":{"url":"https://api.github.com/repos/elasticsearch/logstash/issues/comments/71699419","html_url":"https://github.com/elasticsearch/logstash/pull/2442#issuecomment-71699419","issue_url":"https://api.github.com/repos/elasticsearch/logstash/issues/2442","id":71699419,"user":{"login":"elasticsearch-release","id":6044169,"avatar_url":"https://avatars.githubusercontent.com/u/6044169?v=3","gravatar_id":"","url":"https://api.github.com/users/elasticsearch-release","html_url":"https://github.com/elasticsearch-release","followers_url":"https://api.github.com/users/elasticsearch-release/followers","following_url":"https://api.github.com/users/elasticsearch-release/following{/other_user}","gists_url":"https://api.github.com/users/elasticsearch-release/gists{/gist_id}","starred_url":"https://api.github.com/users/elasticsearch-release/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/elasticsearch-release/subscriptions","organizations_url":"https://api.github.com/users/elasticsearch-release/orgs","repos_url":"https://api.github.com/users/elasticsearch-release/repos","events_url":"https://api.github.com/users/elasticsearch-release/events{/privacy}","received_events_url":"https://api.github.com/users/elasticsearch-release/received_events","type":"User","site_admin":false},"created_at":"2015-01-27T18:22:57Z","updated_at":"2015-01-27T18:22:57Z","body":"Can one of the admins verify this patch?"}}