Firing Wordpress Gutenberg "Convert to Blocks" programmatically
May be this is a little late, but if someone is still looking for a solution here's how you do it.
This code assumes that your classic block is the first one:
var block = wp.data .select("core/editor") .getBlocks()[0];wp.data.dispatch( 'core/editor' ).replaceBlocks(block.clientId, wp.blocks.rawHandler( { HTML: wp.blocks.getBlockContent( block ) }));If you want to do it for all classic blocks, simply iterate overall blocks and look for block name core/freeform to convert it like this:
wp.data.select("core/editor").getBlocks().forEach(function(block, blockIndex){ if (block.name === "core/freeform"){ wp.data.dispatch( 'core/editor' ).replaceBlocks(block.clientId, wp.blocks.rawHandler( { HTML: wp.blocks.getBlockContent( block ) } )); }})