Ruby Programming Tutorial - Lesson 43 - EasySteem Ruby Api :) Talking to Steem blockchain
ruby·@bilal-haider·
0.000 HBDRuby Programming Tutorial - Lesson 43 - EasySteem Ruby Api :) Talking to Steem blockchain
# Radiator
Is a ruby gem written by @inertia its an API to talk to steemit blockchain via ruby.
We are going to further Easify this radiator Gem in here.. so that we can do something like this
Which should return us bilal-haider's 10 followers
like so
> Create a Module which makes it easy to use Radiator gem :) <3
#### Creating a directory called Analyzer
cd to this directory and install radiator and paint gems
``` gem install radiator ```
and also install paint gem, for give our text colors in terminal
``` gem install paint ```
You will see that, after creating an **EasySteem** module, how easily we can talk to steem blockchain
```
puts EasySteem.reblog_stream
```
will start a steam for us, where it will show us who is sharing whom posts at the moment :)
like so
Lets start by analyzing what operations steem blockchain provides us :p
- we can post
- we can vote
- we can transfer
- we can claim rewards
- we can flag
- we can comment
- we can watch streams :)
> We don't have a lot of methods in this module, but we can extend it in upcoming articles. This way we can create an Easy Api to interact with steem blockchain
Our module so far has only 7 methods in it :p thanks to my laziness
You don't need to understand this code, if you don't want to.. you should be able to use it that's what matters :)
```
require 'radiator'
require 'json'
require 'paint'
module EasySteem
def EasySteem.supply
api = Radiator::Api.new
api.get_dynamic_global_properties do |properties|
properties.virtual_supply
end
end
def EasySteem.followers(*options)
api = Radiator::FollowApi.new
if options[2] == nil
_start = 0
elsif
_start = options[2]
end
api.get_followers(options[0], _start, 'blog', options[1]) do |followers|
followers.map(&:follower)
end
end
def EasySteem.voting_stream
stream = Radiator::Stream.new
stream.operations(:vote) do |op|
print "#{op.voter} voted for #{op.author}"
puts " (weight: #{op.weight / 100.0}%)"
end
end
def EasySteem.comment_stream
stream = Radiator::Stream.new
stream.operations(:comment) do |op|
if op.parent_author != ""
print "#{op.author} commented on #{op.parent_author}\'s Post. "
puts "Permlink: #{op.parent_permlink}"
elsif
print "#{op.author} commented on a Post. \n"
puts "Permlink: #{op.permlink}"
end
end
end
def EasySteem.follow_stream
stream = Radiator::Stream.new
stream.operations(:custom_json) do |op|
if op.id == "follow"
_myhash = JSON.parse(op.json)
if _myhash[0] == "follow"
_info = _myhash[1]
puts "#{Paint[_info['follower'], :red]} has followed #{Paint[_info['following'], :green]}"
end
end
end
end
def EasySteem.reblog_stream
stream = Radiator::Stream.new
stream.operations(:custom_json) do |op|
if op.id == "follow"
_myhash = JSON.parse(op.json)
# p _myhash
if _myhash[0] == "reblog"
_info = _myhash[1]
puts "#{Paint[_info['account'], :green]} has shared #{Paint[_info['author'], :cyan]}\'s Post"
end
end
end
end
def EasySteem.stream
stream = Radiator::Stream.new
stream.operations do |op|
puts op
end
end
end
```
Once you have gems installed an you also have EasySteem module. you are ready to use it like so
```
require_relative 'easysteem'
puts EasySteem.supply
```
Which returns virtual Steem supply ..
## get reblogs stream
```
require_relative 'easysteem'
puts EasySteem.reblog_stream
```
which outputs
## Get followers of a person
```
require_relative 'easysteem'
## returns bilal-haider's 10 followers
puts EasySteem.followers "bilal-haider", 10
## returns bilal-haider's 10 followers starting from "a-0-a"
puts EasySteem.followers "bilal-haider", 10, "a-0-a"
```
## Get virtual Steem Supply
```
require_relative 'easysteem'
puts EasySteem.supply
```
## Get following stream.. see who is following whom at real time
```
require_relative 'easysteem'
puts EasySteem.follow_stream
```
```
require_relative 'easysteem'
puts EasySteem.follow_stream
puts EasySteem.supply
puts EasySteem.followers "bilal-haider", 100
puts EasySteem.stream
puts EasySteem.voting_stream
puts EasySteem.comment_stream
puts EasySteem.follow_stream
puts EasySteem.reblog_stream
```
These are few other Methods which you can call using EasySteem
I hope you liked it. ;)
