Witness Essentials: Pricefeed v1.0.2

in #witness-category • 6 years ago (edited)

Witness Essentials: Pricefeed received an update, which includes:

  • Replaced temporary dsteem-hf20 package with dsteem
  • Changed config.json variableEXCHANGES from an array to object to simplify the toggling of specific exchanges (true => false)
  • USDT Exchanges have been added to the config.json for simplified management
  • USDT conversion variable has been renamed
  • A small bug has been fixed which would prevent the publishing of pricefeed in case of no private signing-key while still having a valid active-key

Github

https://github.com/witness-essentials/pricefeed

Pull Requests:

What is Witness Essentials?

Witness Essentials is a collection of important tools for witnesses.

Witness Essentials: Pricefeed is a script for Steem Witnesses to publish their STEEM price feed.

  • 5 major exchanges supported
  • Transaction signing either via private signing-key or private active-key
  • RPC Failover
  • USDT > USD calculation
  • PEG support
  • Robust error handling.

Github Organization: https://github.com/witness-essentials

Getting Started

You can find a detailed guide on Github

Update Information

Since a lot in the config.json has changed, you can either remove/move the existing config.json and copy/paste from config.example.json what you need into the new one, or vice-versa.

Regarding the bug fix:

Essentially the active_key was missing as a parameter and a variable (set_properties), which is needed for the code to know whether it should sign with private signing-keys (new feature in HF20) or via active-key, wasn't set correctly.

See below for the code.

# before
transaction_signing_key = essentials.choose_transaction_key(_g.CURRENT_SIGNING_KEY, g.config.SIGNING_KEYS)
... more code
set_properties = true

# after
transaction_signing_key = essentials.choose_transaction_key(_g.CURRENT_SIGNING_KEY, _g.config.ACTIVE_KEY, _g.config.SIGNING_KEYS)
... more code
set_properties = transaction_signing_key !== _g.config.ACTIVE_KEY

All right, that's it for the much-needed update (1.0.1 was released 4 months ago), but at least over all that time, the pricefeed worked flawlessly. :)

So, I hope my fellow witnesses find this useful and if there are any questions, let me know.

All the best,
Wolf

Do you believe that my work is valuable for Steem? Then please vote for me as witness.

#steem #steemdev #utopian-io #development
6 years ago in #witness-category by
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     6 years ago (edited) 

    Good to see you always keep the witness tools maintained, @therealwolf.

    Do you have any plans to implement a simple outlier detection to exclude the abnormal market prices automatically? On my price feed tool, I have implemented a slightly modified Modified z-score. I know the data sample size is small, but it still worked very well in my tests.

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    [-]
     6 years ago  

    Thank you for your review, @emrebeyler! Keep up the good work!

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      [-]
       6 years ago (edited) 

      Good job, and although I have nothing to do with witnesses except friendship and admiration for their work.
      I hope and wish that everything goes well for everyone, only with work and union can the impossible be achieved.

      An affectionate greeting from Spain

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       6 years ago  

      You witness are doing a great job for steemit. Continues to move forward. Voted you as my witness for

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         6 years ago  

        Hi @therealwolf!

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           6 years ago  

          We have an inflation problem caused by SBD printing when there is too much SBD debt and the price of STEEM is too low. What do you intend to do about it?

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             6 years ago  

            Hi, @therealwolf!

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               6 years ago  

              This post has been included in the latest edition of SoS Daily News - a digest of all you need to know about the State of Steem.

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                 6 years ago  

                Hey, @therealwolf!

                Thanks for contributing on Utopian.
                We’re already looking forward to your next contribution!

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