Module extensions

apalis_core::task

Module extensions 

Source
Expand description

A type-safe container for storing protocol extensions.

The Extensions struct provides a type map for storing arbitrary data associated with a request or response. Each extension is stored by its type, allowing for safe retrieval and mutation without explicit casting.

§Features

  • Insert, get, mutate, and remove extensions by type.
  • Efficient storage: avoids allocating a map unless needed.
  • Type-safe API: prevents type mismatches at runtime.
  • Cloneable: supports cloning the entire extensions set.
  • Extensible: merge extensions from other instances.

§Example

use apalis_core::task::extensions::Extensions;

let mut ext = Extensions::new();
ext.insert(42u32);
assert_eq!(ext.get::<u32>(), Some(&42u32));
ext.remove::<u32>();
assert!(ext.get::<u32>().is_none());

Extracted from the http crate with modifications to fit our use case

Structs§

Extensions
A type map of protocol extensions.