Validate whether the path parameter in NextJS is null or empty before executing the query

Currently seeking a method to determine if the query value is empty using the path parameter approach. Have a file named pages/search/[variable1].js

Below is the code snippet:

import { useRouter } from "next/router"

const Variable= () => {
  const router = useRouter()
  const { variable1 } = router.query
  console.log(variable1);
}

For instance, when accessing localhost:3000/search/abc, 'abc' displays in the console. However, accessing it through localhost:3000/search/ does not show anything. What condition can I use to check if variable1 is empty? Tried using the ternary operator

variable1 ? console.log("not empty") : console.log("empty")
, but 'empty' does not appear in the console.

Answer №1

In case you have not defined a page under pages/search/index.js, but only under pages/search/[variable1].js, it implies that the page [variable1].js will never capture the /search route and display as expected.

You are presented with two choices:

  1. Revise your page definition to capture all routes under search by changing the path to pages/search/[...variable1].js, which would include capturing the search index route (/search) as well
  2. Create a new page under pages/search/index.js and utilize query parameters to capture the search variable

Answer №2

If you want to reach localhost:3000/search, make sure you have the index.js folder set up correctly in the specified path.

When it comes to

localhost:3000/search/[veriable1].js
, keep in mind that this particular folder expects a query after the search. Therefore, localhost:3000/search and localhost:3000/search/_example_ are not interchangeable pages and they cannot share queries between them.

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