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Lære Using Middleware in Zustand | Advanced Zustand Patterns and Usage Decisions
State Management in React with Zustand

bookUsing Middleware in Zustand

Middleware in Zustand allows you to extend your store's capabilities by intercepting and enhancing actions such as state updates or retrieval. Middleware functions can be used for a variety of purposes, including logging state changes, persisting state to local storage, or even handling analytics. By wrapping your store with middleware, you can add features without modifying your state logic directly. Common use cases for middleware in Zustand include:

  • Tracking state changes for debugging;
  • Saving state between sessions;
  • Enforcing rules or side effects whenever state is updated.

To illustrate how middleware works in Zustand, consider a scenario where you want to log every state change and also persist the state to local storage. You can achieve this by composing middleware functions when creating your store. For example, you might use a logger middleware to print changes to the console, and a persist middleware to automatically save and load state from local storage. By combining these middleware functions, your store gains both logging and persistence capabilities without any changes to your business logic.

question mark

What is the main purpose of middleware in Zustand, and which of the following are typical use cases?

Select all correct answers

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Sektion 3. Kapitel 1

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Suggested prompts:

What are some examples of middleware functions I can use with Zustand?

How do I combine multiple middleware functions in a Zustand store?

Can you explain how the logger and persist middleware work together in practice?

bookUsing Middleware in Zustand

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Middleware in Zustand allows you to extend your store's capabilities by intercepting and enhancing actions such as state updates or retrieval. Middleware functions can be used for a variety of purposes, including logging state changes, persisting state to local storage, or even handling analytics. By wrapping your store with middleware, you can add features without modifying your state logic directly. Common use cases for middleware in Zustand include:

  • Tracking state changes for debugging;
  • Saving state between sessions;
  • Enforcing rules or side effects whenever state is updated.

To illustrate how middleware works in Zustand, consider a scenario where you want to log every state change and also persist the state to local storage. You can achieve this by composing middleware functions when creating your store. For example, you might use a logger middleware to print changes to the console, and a persist middleware to automatically save and load state from local storage. By combining these middleware functions, your store gains both logging and persistence capabilities without any changes to your business logic.

question mark

What is the main purpose of middleware in Zustand, and which of the following are typical use cases?

Select all correct answers

Var alt klart?

Hvordan kan vi forbedre det?

Tak for dine kommentarer!

Sektion 3. Kapitel 1
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