Convert WordPress Post HTML to Markdown (by Post Id)

WPHTML2MD.csx

#r "MySql.Data"
#r "Html2Markdown"
#r "NPoco"
//#r "ReverseMarkdown" //this one turned <li> into "-" vs "*"
//install these libs via scriptcs -install libname

using NPoco;

public class Post {
  public double id {get; private set;}
  public string post_content {get; private set;}
}

var cxnString = "Server=xxx;Database=xxx;User=xxx;Password=xxx;";
var database =  new Database(cxnString, DatabaseType.MySQL, MySql.Data.MySqlClient.MySqlClientFactory.Instance);

var query = $@"select
  id,
  post_title,
  post_content,
  post_content_filtered
from wp_posts as parent
where post_type = 'post'
and post_parent = 0
/*and post_content_filtered = ''*/
and id in ('{Environment.GetCommandLineArgs()[3]}')
;";
 
var cxn = new MySql.Data.MySqlClient.MySqlConnection(cxnString);
var savecmd = cxn.CreateCommand();
cxn.Open();

var posts = database.Fetch<Post>(query);

var converter = new Html2Markdown.Converter();

foreach(var post in posts) {
  savecmd.CommandText = $"update wp_posts set post_content_filtered = '{converter.Convert(post.post_content).Replace("'", "''")}' where id = {post.id}";
  savecmd.ExecuteNonQuery();
}