package sihl
Install
Dune Dependency
Authors
Maintainers
Sources
sha256=e77ffae26dac04e446ff07854de68a03edfd05031b5cb0dbcb6dc4a96e2d1c8e
sha512=7682c55136dbb8c68517ccd2c157a3556d966cb8565d15cf21ab270f92ea7e9ee5d3ac1479ba2e34a80f3052ca5dd1a74e964a8764c2164e3e71e9048fcdf51b
doc/sihl.core/Sihl_core/Ctx/index.html
Module Sihl_core.CtxSource
The service request context is a key value store that can be used to pass arbitrary values from one service to another within the same request.
Key
The key of a value that can be stored in the context. The type of the key has to be indicated explicitly.
create_key () creates a key that can be used to store and retrieve values. The type needs to be indicated explicitly.
Example
let string_key: string = Sihl.Core.Ctx.create_key () in
let int_key: int = Sihl.Core.Ctx.create_key () in
let foo_key: Foo.t = Sihl.Core.Ctx.create_key ()Map
The service request context is a heterogeneous map that can store values of different types. It is typically used to pass values to services that are either 1) only valid in the context of a service request or 2) whose types are hidden so that different service implementations of the same interface can take different values.
add key ctx adds a value for the key. If there is a value stored with the key it will be silently replaced.
remove key ctx returns the context with the removed value behind the key.
id ctx returns the id of the context ctx. The ids of the currently active and used contexts are unique.