{"action":"opened","issue":{"url":"https://api.github.com/repos/EventStore/EventStore/issues/1657","repository_url":"https://api.github.com/repos/EventStore/EventStore","labels_url":"https://api.github.com/repos/EventStore/EventStore/issues/1657/labels{/name}","comments_url":"https://api.github.com/repos/EventStore/EventStore/issues/1657/comments","events_url":"https://api.github.com/repos/EventStore/EventStore/issues/1657/events","html_url":"https://github.com/EventStore/EventStore/issues/1657","id":333099372,"node_id":"MDU6SXNzdWUzMzMwOTkzNzI=","number":1657,"title":"Projections: add ability to set metadata on emitted streams","user":{"login":"MrBretticus","id":253641,"node_id":"MDQ6VXNlcjI1MzY0MQ==","avatar_url":"https://avatars2.githubusercontent.com/u/253641?v=4","gravatar_id":"","url":"https://api.github.com/users/MrBretticus","html_url":"https://github.com/MrBretticus","followers_url":"https://api.github.com/users/MrBretticus/followers","following_url":"https://api.github.com/users/MrBretticus/following{/other_user}","gists_url":"https://api.github.com/users/MrBretticus/gists{/gist_id}","starred_url":"https://api.github.com/users/MrBretticus/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/MrBretticus/subscriptions","organizations_url":"https://api.github.com/users/MrBretticus/orgs","repos_url":"https://api.github.com/users/MrBretticus/repos","events_url":"https://api.github.com/users/MrBretticus/events{/privacy}","received_events_url":"https://api.github.com/users/MrBretticus/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2018-06-17T22:51:02Z","updated_at":"2018-06-17T22:51:02Z","closed_at":null,"author_association":"NONE","body":"It would be helpful if the projections API allowed you to set metadata on emitted streams, such as max age and max events. This is a useful feature for certain kinds of projections (e.g. alerts) where events do not need to remain around for long. Currently, this seems only possible by an outside process."}}
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