Passing Data with React Router using Link

If you've used React Router on many projects, definitely you've asked How i can pass some data or state to other components through a link tag?.

So 1st of all we'll discuss how we can pass data between components in React.

1. Passing props

The 1st one is by passing some props from the parent component to the children components

2. Global State

2nd one is by making a Global State and make some data accessible by many components.

You can manage Global State using two main paths:

• Redux
• React context

3. Using React Router's Link

3rd one is basically when you click on a link(to component), you passing data with that.

Below we Have a simple React App with some routes

We Have two routes Here the "/"(Home) Route and the "/profile"(Profile) route.

So the 1st page we'll see if we run yarn start is the Home Page

And if we go to the /profile route
we'll see the Profile component

So as you can see we're using the <Link> instead of the regular <a> tag to prevent the refresh of the page.

So how we can send data for exemple to the Profile component from the Home component ?

So the cool thing is we can pass an Object to the to property in the <Link> and that object must contains a pathname and optionally a state, and we can pass the data through that state

and we can access that state in the Profile component in the props.location.state

for more Info check this React Router Link

Comments

[Bessy Mazurek]

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[FJones]

It's worth noting that state doesn't work with HashRouter. Which is a significant restriction if you want to both maintain direct jumpins and have a single terminal server entry point.

[John]

Thank you! I'm stuck with hashrouter as this bank cms / ecommerce de-d to use iframes for custom code -.-

[NISHAD.M.M]

Nice information dude👏

[abobaker hilal]

Can use hook useLocation() from react-router-dom to access state

[Ryan Florence]

Yes, it's like a hidden piece of the URL, available on location.state even after a refresh.

[Nelsie Borja]

And how to reset it in a proper way?

[ercüment]

when the third method is applied, if you refresh the page the state will be undefined.

[Ryan Florence]

That's not correct. It will be there since its stored in the browser's session memory, not your application's. It will be there until you close the browser (or a new tab). It's like a hidden piece of the URL.

[Mohamed Amine Fh]

Actually that's how react works, if you refresh the page in any component, the state will reset.
if you're trying to send some data (you get it from the server using fetch API) to another component, and you want to refresh the page or to handle the page from crushing, just fetch again that specific data.