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博客订阅

此教程向您展示如何从指定作者处获取博客详情，限制为五个结果。

Full, runnable src of Blog Feed can be downloaded as part of: tutorials/ruby (or download just this tutorial: devportal-master-tutorials-ruby-01_blog_feed.zip).

Also see:

Script

blog_feed.rb

The script parses the creation date, assuming Zulu timezone (AKA UTC).

The output will be the latest five posts/reblogs for the account specified. If the author is the same as the account specified, it is assumed to be a post by this account. Otherwise, it is assumed to be a reblog.

It also counts the words in the content body by splitting the text into an array of strings, delimited by whitespace.

Finally, it creates the canonical URL by combining parent_permlink, author, and permlink.

Final code:

require 'rubygems'
require 'bundler/setup'

Bundler.require

account_name = ARGV[0]
api = Radiator::Api.new
query = {tag: account_name, limit: 5}
created = nil

api.get_discussions_by_blog(query) do |posts|
  posts.each do |post|
    words = post.body.split(/\s/)
    author = post.author
    type = author == account_name ? 'Post' : 'Reblog'
    uri = []

    uri << post.parent_permlink
    uri << "@#{author}"
    uri << post.permlink

    if created != post.created
      puts created = Time.parse(post.created + 'Z')
    end

    puts "  #{type}: #{post.title}"
    puts "  By: #{author}"
    puts "  Words: #{words.size}"
    puts "  https://hive.blog/#{uri.join('/')}"
  end
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/01_blog_feed
bundle install
ruby blog_feed.rb hiveio

Example Output

2021-02-14 08:16:03 UTC
  Post: Around the Hive: Reflections
  By: hiveio
  Words: 423
  https://hive.blog/hiveecosystem/@hiveio/around-the-hive-reflections
2021-01-07 04:00:48 UTC
  Post: Hive and Kyros Ventures AMA
  By: hiveio
  Words: 2374
  https://hive.blog/hiveblockchain/@hiveio/hive-and-kyros-ventures-ama
2020-12-16 19:13:36 UTC
  Post: GetBlock x Hive : Providing Hive Node Services, Presenting at HiveFest, and a HIVE Giveaway
  By: hiveio
  Words: 602
  https://hive.blog/hiveblockchain/@hiveio/getblock-x-hive-providing-hive-node-services-presenting-at-hivefest-and-a-hive-giveaway
2020-11-12 01:20:36 UTC
  Post: Hive x Beaxy Livestream AMA - Answering Community Questions and HIVE Up for Grabs!
  By: hiveio
  Words: 258
  https://hive.blog/hiveblockchain/@hiveio/hive-x-beaxy-livestream-ama-answering-community-questions-and-hive-up-for-grabs
2020-10-22 18:59:54 UTC
  Post: Beaxy HIVE Listing Announcement
  By: hiveio
  Words: 419
  https://hive.blog/hiveblockchain/@hiveio/beaxy-hive-listing-announcement
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