#revalidatePath

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desert thicket
#

I have a server component, that gets like count from serverAction,
when the form is submitted, like count is increased and revalidatepath is called, which changes the value of likes that is rendered,
How does revalidatepath works so updated count is rendered.

echo thornBOT
#

Hi @desert thicket. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:

#

The revalidatePath function in Next.js is used to manually revalidate data and re-render the route segments below a specific path in a single operation. When you call the revalidatePath method, it revalidates the Data Cache, which in turn invalidates the Full Route Cache. This means that the data for the specified path is fetched again, and the page is re-rendered with the updated data.

In your case, when the form is submitted and the like count is increased, calling revalidatePath will cause the server to fetch the updated like count and re-render the page with this new data.

Here is an example of how you might use revalidatePath in a server action:

'use server'
 
import { revalidatePath } from 'next/cache'
 
export default async function submit() {
 await submitForm()
 revalidatePath('/')
}

In this example, after the form is submitted, revalidatePath('/') is called to revalidate the data for the base path. This would cause the server to fetch the updated data and re-render the page.

You can use revalidatePath in two places depending on what you're trying to achieve:

  1. Route Handlers - to revalidate data in response to a third party event (e.g. webhook).
  2. Server Actions - to revalidate data after a user interaction (e.g. form submission, clicking a button).

Please note that revalidatePath should be called with the page's pathname, not the URL. For example, you should use /dynamicGraphQl/[id] and not /dynamicGraphQl/2.