Feb 19, 2025

Redux Thunk vs Redux Saga: The Simple Guide for Beginners

If you’ve worked with Redux, you know handling asynchronous actions can get tricky. Should you use Redux Thunk or Redux Saga? In this post, I’ll break it down in the simplest way possible, with real-life analogies and examples!


redux-thunk-vs-redux-saga


Real-Life Analogy:


Redux Thunk Analogy: Imagine you're ordering food online. You place the order (dispatch an action), then you wait for the restaurant to cook it (API call), and when it's ready, they notify you (update the store). That’s how Redux Thunk works—step by step, waiting for each step to finish.

Redux Saga Analogy: Now, imagine you have a personal assistant who takes care of your orders. They handle multiple orders at the same time, track the delivery, cancel it if needed, and even reorder if something goes wrong. This is how Redux Saga works—more control and flexibility!


How Both Middleware Works


Redux Thunk in Simple Words:

  • Uses functions to handle async tasks
  • Works well for basic API calls
  • Uses async/await, making it easy to read
  • Example: Fetching user data from an API when a button is clicked


Redux Saga in Simple Words:

  • Uses generator functions (function*) to handle side effects
  • Can handle multiple async operations at once
  • Can cancel, debounce, or retry API calls
  • Example: Live chat notifications or background data syncing

Redux Thunk Example (Fetching Data)

Redux Saga Example (Fetching Data)



Feature Redux Thunk Redux Saga
How it works Uses functions (async/await) Uses generators (yield)
Best for Simple API calls Complex async workflows
Code complexity Easy Moderate to high
Control over async tasks Limited High (can cancel, retry, delay tasks)


Recommendation


"If your project is small and you just need simple API calls, Redux Thunk is great. But if you're building a large-scale app with complex async workflows, Redux Saga is the way to go!"


"Which one do you prefer—Thunk or Saga? Let me know in the comments!"




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