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This param allows clients to specify how much presence history they want to fetch. Previously, the server always returned 14 days of history. With the recent migration of the presence API to the much more efficient system relying on incremental fetches via the last_update_id param added in #29999, we can now afford to provide much more history to clients that request it - as all that historical data will only be fetched once. There are three endpoints involved: - `/register` - this is the main useful endpoint for this, used by API clients to fetch initial data and register an events queue. Clients can pass the `presence_history_limit_days` param here. - `/users/me/presence` - this endpoint is currently used by clients to update their presence status and fetch incremental data, making the new functionality not particularly useful here. However, we still add the new `history_limit_days` param here, in case in the future clients transition to using this also for the initial presence data fetch. - `/` - used when opening the webapp. Naturally, params aren't passed here, so the server just assumes a value from `settings.PRESENCE_HISTORY_LIMIT_DAYS_FOR_WEB_APP` and returns information about this default value in page_params.
Zulip overview
Zulip is an open-source team collaboration tool with unique topic-based threading that combines the best of email and chat to make remote work productive and delightful. Fortune 500 companies, leading open source projects, and thousands of other organizations use Zulip every day. Zulip is the only modern team chat app that is designed for both live and asynchronous conversations.
Zulip is built by a distributed community of developers from all around the world, with 74+ people who have each contributed 100+ commits. With over 1000 contributors merging over 500 commits a month, Zulip is the largest and fastest growing open source team chat project.
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