Expanding on my last article I exlore further API calls to pull some data from my account and present it in the terminal. Follow along!

(image source)

Let's jump right in

If you would like to follow what I'm doing this at home you should check out Part 1. Last time we pulled a list of my followers from my account. Today we want to get some more account data.

This tutorial is written in Ruby with the help of Radiator API client provided by @inertia.

Fallback nodes

To interact with the steem blockchain we need to connect to a public api. If that node fails, Radiator provides the functionality to fallback on a different node. We can implement it like this:

options = {
  ur: 'https://api.steemit.com',
  failover_urls: [
    'https://api.steemitstage.com'
  ]
}

api = Radiator::Api.new(options)

Pulling account data

Let's begin by grabbing my account and printing the username like this:

my_account = api.find_account('cryptonik')
puts "Looking up account data..."
puts "Account: #{my_account.name}"

Now we can get my STEEM balance, by calling the balance method and converting it to a float:

$steem_balance=my_account.balance.to_f

Very similar for SBD balance:

$sbd_balance=my_account.sbd_balance.to_f

Print it to console with puts:

puts "Balance (STEEM): #{$steem_balance}"
puts "Balance (SBD): #{$sbd_balance}"

We can now pull the voting power, and to get it right (in percent) we divide the stored value by 100:

$voting_power=(my_account.voting_power/100.to_f)

Let's get my reputation. This one is a little tricky. The reputation is stored in a different format and we have to first change it to a human readable format.

Here is @sevinwilson breaking down the math:

1. Calculate the log base 10 of the raw score from the desired user at steemd.com/@username. LOG base 10 of 26727073581 = 10.4269514092915
2. Subtract 9 from this number. 10.4269514092915 – 9 = 1.42695140929153Multiply this number by 9. 1.42695140929153 x 9 = 12.8425626836238
3. Add 25. 12.8425626836238 + 25 = 37.8425626836238
4. Once you get this number (37.8425626836238) and round down you have your reputation score = 37.

Here is me putting that into code:

$reputation=((Math::log10(my_account.reputation.to_f)-9)*9+25)
puts "Reputation: #{$reputation}"

=>51.989230344184215

That looks pretty messy. Let's limit our float to 2 decimal points:

puts "Reputation:   %.2f" % $reputation

=>51.99

Much better, we can use the same format for the other puts.

Now we can append a slightly modified followers count from last time. This time we won't print the whole list but rather just grab the number of followers. Remember, we can call the length method on the array of users constructed by map.

followapi = Radiator::FollowApi.new
response  = followapi.get_followers('cryptonik', 0, 'blog', 1000)
followers_ary = response.result.map(&:follower)

$sum_followers=followers_ary.length
puts "followers: #{$sum_followers}"

Let's put it together!

Make a file in your editor of choice and save it with the *.rb extension.

require 'radiator'

options = {
  ur: 'https://api.steemit.com',
  failover_urls: [
    'https://api.steemitstage.com'
  ]
}


api = Radiator::Api.new(options)
my_account = api.find_account('cryptonik')
puts "Looking up account data..."
puts "Account: #{my_account.name}"

$steem_balance=my_account.balance.to_f
$sbd_balance=my_account.sbd_balance.to_f
$voting_power=(my_account.voting_power/100.to_f)
$reputation=((Math::log10(my_account.reputation.to_f)-9)*9+25)

puts "Reputation:   %.2f" % $reputation
puts "Voting power: %.2f" % $voting_power
puts "Balance (STEEM): %.2f" % $steem_balance 
puts "Balance (SBD): %.2f"   % $sbd_balance

followapi = Radiator::FollowApi.new
response  = followapi.get_followers('cryptonik', 0, 'blog', 1000)
followers_ary = response.result.map(&:follower)

$sum_followers=followers_ary.length
puts "followers: #{$sum_followers}"

Action!

$ruby myfollowers.rb

Feel free to try this at home and if you get stuck you can always ping me.

Link to Part 1 of this series.

Resources:
Radiator docs
Radiator github
Steem github

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- Nick ( @cryptonik ) -