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Get Post Comments

Fetch comments made on each content or post.

Full, runnable src of Get Post Comments can be downloaded as part of: tutorials/ruby (or download just this tutorial: devportal-master-tutorials-ruby-07_get_post_comments.zip).

Also see:

Script

comments_list.rb

In this tutorial we can just use the radiator library, interaction with Blockchain. Root post selection is done by command-line arguments. First, we ask the blockchain for the replies on a post or comment. Then, we grab the authors of those replies and list them, followed by the total comments count.

api.get_content_replies(author, permlink) do |replies|
  reply_authors = replies.map{|reply| reply.author}
  reply_authors = reply_authors.uniq.join("\n\t")
  puts "Replies by:\n\t#{reply_authors}"
  puts "Total replies: #{replies.size}"
end

The example of results returned from the service:

Example Output

Replies by:
	berniesanders
	howo
	roelandp
	anomadsoul
	netuoso
	c0ff33a
	florianopolis
	davedickeyyall
	traducciones
	tsnaks
	pwny
	themarkymark
.
.
.
	hr1
	marybellrg
	victor26
	nelsonnils
	fozdru
	scholaris
	thromaspang
	a-alice
	joetunex
	awesomegames007
	jsl416
	retinox
	gringo211985
	rudyardcatling
	knowledges
	mudcat36
	dkkarolien
Total replies: 522

Final code:

require 'rubygems'
require 'bundler/setup'

Bundler.require

url = ARGV[0]
slug = url.split('@').last
author, permlink = slug.split('/')
api = Radiator::Api.new

api.get_content_replies(author, permlink) do |replies|
  reply_authors = replies.map{|reply| reply.author}
  reply_authors = reply_authors.uniq.join("\n\t")
  puts "Replies by:\n\t#{reply_authors}"
  puts "Total replies: #{replies.size}"
end

To Run

First, set up your workstation using the steps provided in Getting Started. Then you can create and execute the script (or clone from this repository):

git clone https://gitlab.syncad.com/hive/devportal.git
cd devportal/tutorials/ruby/07_get_post_comments
bundle install
ruby comments_list.rb https://hive.blog/communityfork/@hiveio/announcing-the-launch-of-hive-blockchain
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