I would think that many others would have had to migrate from Wordpress or Drupal to Nationbuilder by this point, but I can't seem to find many resources.

Seeing as there is no way to batch import posts I created a script to do so, and categorize them under their respective parent blog within Nationbuilder- attaching an 'external_id'.

So now, to update these same posts (content authors have made edits on old site during NB development) I have to first make a GET request to /sites/:site_slug/pages/blogs/:id/match to get the external id, then another UPDATE request to /sites/:site_slug/pages/blogs/:blog_id/posts/:blog_post_id .

Is there was an UPDATE or DELETE by 'external_id' method available or in the works? Many developers will be migrating to Nationbuilder and these functions alone will make the migration process easier- and open the doors to CSV batch editing for larger sites.