How can set post value and unset it by observer magento 2

Question

I want to get data by current url so i have set post value, please see my code

if (currenturl = 'https://example.com/delhi.html') {
      $this->request->setPostValue('location','289');
}

But it set for all pages, i want to unset it if another url open. Please anyone idea for that

Answer 1

Try this,

$this->request->setPostValue('location','');
if (currenturl = 'https://example.com/delhi.html') {
      $this->request->setPostValue('location','289');
}