Implementing Context API for Global State Management in React
React's Context API provides a way to pass data through the component tree without having to pass props down manually at every level.
First, create a context.
import React from 'react';
const MyContext = React.createContext(defaultValue);
Next, provide the context to the components that need it.
<MyContext.Provider value={/* some value */}>
Finally, consume it in your components.
class MyClassComponent extends React.Component {
static contextType = MyContext;
render() {
return <div>{this.context}</div>; // value from MyContext.Provider
}
}
Or in functional components, use the useContext Hook.
import React, { useContext } from 'react';
const value = useContext(MyContext);
Remember, Context API is designed to share data that can be considered “global” for a tree of React components, like the current authenticated user, theme, or preferred language.
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Keep experimenting and happy coding! You can find me at @samuellawrentz on X.