Change URL of the page based on the date in Gatsby

[MotaZor94]

Is it possible to change the date of the page inside gatsby-node.js based on the date like in the example below?

I have webinars running every few days and I want to change the webinar URL from let's say:

www.example.com/webinar-example

to

www.example.com/webinar-example-recording

after the webinar has passed.

const getWebinars = makeRequest(
    graphql,
      `
      {
        allStrapiWebinar {
          edges {
            node {
              id
              Slug
              WebinarDate(formatString: "X")
            }
          }
        }
      }
      `
    ).then(result => {
        let currentDateStamp = new Date().getTime()
        let webinarUrl
      result.data.allStrapiWebinar.edges.forEach(({ node }) => {
        if(node.WebinarDate < currentDateStamp){
          webinarUrl = `${node.Slug}`+"-recording"
        }
        else {
          webinarUrl = node.Slug
        }
        createPage({
          path: `webinars/${webinarUrl}`,
          component: path.resolve(`src/templates/webinar-registration.js`),
          context: {
            id: node.id,
          },
        })

Would you do it in Gatsby-node.js or somewhere else?