Anonymous claiming of netlify sites

claim-netlify-site.js

const jwt = require('jsonwebtoken')
const {
  NETLIFY_OAUTH_CLIENT_ID,
  NETLIFY_OAUTH_CLIENT_SECRET
} = process.env

/* Function to handle netlify auth callback */
module.exports.handler = async (event, context) => {
  const body = JSON.parse(event.body)
  const { sessionId } = body

  if (!sessionId) {
    return {
      statusCode: 401,
      body: JSON.stringify({
        message: 'missing session id'
      })
    }
  }

  const token = jwt.sign({
    client_id: NETLIFY_OAUTH_CLIENT_ID,
    session_id: sessionId,
  }, NETLIFY_OAUTH_CLIENT_SECRET)

  const claimUrl = `https://app.netlify.com/claim#${token}`
  console.log('Link to claim your sites:')
  console.log(claimUrl)

  return {
    statusCode: 200,
    body: JSON.stringify({
      sessionId: sessionId,
      claim: claimUrl
    })
  }
}