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RB: Get Account Comments

Fetching the comments written by a particular account.

Full, runnable src of Get Account Comments can be downloaded as part of the RB tutorials repository.

Historically, applications that wanted to retrieve comments written by a particular account would use get_state. But this method has been scheduled for deprecation. So we’ll use a more supported approach in this tutorial using get_account_history.

Sections

  1. Making the api call - Requesting account history
    1. Example api call - make the call in code
    2. Example api call using script - using our tutorial script
    3. Example Output - output from a successful call
  2. Comment Fields - Getting more detail than provided by account history.
  3. To Run - Running the example.

Making the api call

To request the latest comments by a particular author, we can use the get_account_history method:

api = Radiator::Api.new

api.get_account_history(account_name, -1, 10000) do |history|
  history.each do |index, item|
    type, op = item.op
    
    next unless type == 'comment'
    next if op.parent_author.empty? # skip posts
    next if op.parent_author == account_name # skip replies to account

    # .
    # ... your code here
    # .
  end
end

Notice, the above example request up to 10,000 operations from history, starting from the oldest. From these results, we iterate on each item in history to locate a) type of comment, and b) parent_author that do not match the account_name.

Example api call

If we want to get the comments by user @lordvader …

api.get_account_history("lordvader") do |content| ...

Example api call using script

And to do the same with our tutorial script

ruby get_account_comments.rb lordvader

Example Output

From the example we get the following output from our script:

.
.
.
Reply to @saarliconvalley in discussion: "The Empire has sent you a friend request."
	body_length: 33 (7 words)
	replied at: 2018-03-27T16:02:45
	net_votes: 0
	https://creary.net/@lordvader/re-saarliconvalley-re-lordvader-2018327t16025594z-20180327t160243538z
Reply to @teenovision in discussion: "The Empire has sent you a friend request."
	body_length: 90 (16 words)
	replied at: 2018-03-27T15:53:39, updated at: 2018-03-30T17:25:18, active at: 2018-03-30T17:25:18
	net_votes: 0
	https://creary.net/@lordvader/re-teenovision-re-lordvader-the-empire-has-sent-you-a-friend-request-20180327t155339532z
Reply to @gtg in discussion: "gtg witness log"
	body_length: 130 (25 words)
	replied at: 2018-04-06T04:29:00
	net_votes: 2
	https://creary.net/@lordvader/re-gtg-ffdhu-gtg-witness-log-20180406t042906872z

Comment fields

Comments in the results of get_account_history will only return the following fields:

In our example script, we want more detail than this, so for every comment, we call get_content to retrieve more detail. For a full explanation of the results provided by get_content, please refer to the tutorial: Get Post Details

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 git@github.com:creary/devportal-tutorials-rb.git
cd devportal-tutorials-rb/tutorials/09_get_account_comments
bundle install
ruby get_account_comments.rb <account-name>