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Front-end · Tool

Redux-Saga

Side effects, orchestrated.

01Overview

Redux-Saga manages side effects such as API calls, retries and background tasks with generator functions. It shines when async flows get complex and need to be tested and cancelled reliably.

02Key concepts

What anyone working with it needs to understand

  1. 01

    Generators

    function* and yield as the foundation of sagas.

  2. 02

    Effects

    call, put, take, select — declarative descriptions of side effects.

  3. 03

    Watchers & workers

    Listening for actions and delegating work.

  4. 04

    Concurrency helpers

    takeLatest, takeEvery, race and debounce.

  5. 05

    Cancellation

    Stopping in-flight tasks when the user navigates away.

  6. 06

    Testability

    Step-by-step testing of sagas without mocking the network.

03In practice
Used alongside Redux in React applications to keep complex async flows readable and testable.
04Related