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No public replacement for custom inheritable namespace settings in Grape 4.0? #2979
Description
Hi,
While bumping the grape gem from 3.3 to 4.0 in our app, we noticed that inheritable_setting is no longer exposed.
AFAICT, Grape 4.0 no longer exposes any mechanism to let users define inheritable namespace settings? Is that correct? Is that intended?
There's a very unclear paragraph in UPGRADING.md, and the source code mentions "the nesting behaviour DSL::Settings#namespace_setting is specified to have", but I still have no clue what that behavior actually is.
For now we're working around this issue by manually traversing the parent chain. While it's only a few lines of code, it is kind of annoying that we have to do this... particularly when Grape used to do it.
Activity
ericproulx commentedon Sep 22, 2026
Hello @olivier-thatch, thank you for opening an issue.
inheritable_settingis still exposed but some internals like namespace_inheritable have been made private since it's exposing how Grape is working internally. What's your specific use case ?Meanwhile, if you look at inheritable_setting, there's plenty of methods that are now exposed to fill the gap. Something is probably missing and I would gladly look at your case.
namespace_setting,route_settingandglobal_settingare still exposed as DSL methods.