Read all .md files, convert them to html and send them

I use fs to read the file which is in .md format and I want to transform it into html file.

This is my code so far:

fs = require('fs');
fs.readFile(__dirname + '/posts/react-v16.13.0.md', 'utf8', function (err, data) {
  if (err) {
    return console.log(err);
  }
  console.log(data);
});

the file is situated in that folder and has that name.

This function puts in console the content of the .md file.

For converting it to html I added this:

const showdown = require('showdown');
converter = new showdown.Converter();
...
fs = require('fs');
fs.readFile(__dirname + '/posts/react-v16.13.0.md', 'utf8', function (
  err,
  data
) {
  if (err) {
    return console.log(err);
  }
  text = data;
  html = converter.makeHtml(text);
  console.log(html);
});

It puts the file as html in the log which is fine.

My problem is how to do this if there are multiple files in /posts/ folder, how to read and send those files?

I would like to send them to front-end using a POST method.

Is it possible to read all the files from the folder, transform them and send them?

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