# GenServer processing

**URL:** <https://forum.elixirforum.com/t/genserver-processing/15691>\
**Category:** Questions\
**Tags:** api, phoenix, http, maru, genserver\
**Created:** [August 8, 2018, 12:21pm UTC](https://forum.elixirforum.com/t/genserver-processing/15691 "2018-08-08T12:21:50Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![peerreynders](https://forum.elixirforum.com/user_avatar/forum.elixirforum.com/peerreynders/32/5826_2.png) [@peerreynders](https://forum.elixirforum.com/u/peerreynders)\
**Post date:** [August 8, 2018, 12:34pm UTC](https://forum.elixirforum.com/t/genserver-processing/15691/4 "2018-08-08T12:34:00Z")

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You don’t even have to reply in another process. The trick is that `handle_call` doesn’t have to reply immediately. So the state of the call can be stored in the `GenServer` state and once the reply is ready [`GenServer.reply/2`](https://hexdocs.pm/elixir/GenServer.html#reply/2) can be used to complete the call. Just remember that on the client side there is a timeout.

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