app.js

const GhostAdminAPI = require('@tryghost/admin-api');
const showdown  = require('showdown');
const fetch = require("node-fetch");
const core = require("@actions/core")
const github = require("@actions/github")

const name = core.getInput()
const converter = new showdown.Converter()
let htmlValue = null

// Configure the client
const api = new GhostAdminAPI({
  url: 'https://blog-pr.casperlabs.io',
  // Admin API key goes here
  key: '5f492151f94320000142e86f:3a504ff9996824e0e5311113afe686541380e20290b9b4acad61f1de7403a771',
  version: 'v2'
});

fetch('https://github.com/self-coding-crab/codesandbox-onmessage/blob/master/README.md') 
    .then(response => response.text())
    .then(result => {
      console.log('result', result)
      api.posts.add({
        title: 'Hello world', 
        html: result
      }, {source: 'html'})
      // .then(response => console.log(response))
      // .catch(error => console.error(error))
    });

console.log(htmlValue)
// Make an authenticated request

(async function main() {
  try {
    console.log('repo', github.repository, github.event.pull_request.number)
  } catch (err) {
    console.error(err);
    process.exit(1);
  }
})
// - name: get list of files in PR
// if: github.event.pull_request.merged
// run: |
//     URL="https://api.github.com/repos/${{ github.repository }}/pulls/${{ github.event.pull_request.number }}/files"
//     FILES=$(curl -s -X GET -G $URL | jq -r '.[] | .filename')
//     if echo $FILES | grep -q ".json"; then
//       echo "json file changed!!"
//     else
//       echo "no json file changed!!"
//     fi