DevTool SPS proposal: steem trx finder

Image source pixabay


Greeof you guys know me already, some not, I have been working and collaboratin in the STEEM dev ecoosyste for more than 2 yeas.

This nodejs/Javascript tool is half-way done, and was born out of pure necessity. However, there are still plenty of things to be done.
The public npm package is already published.
If you think this is a good tool, please vote me. The development should only take one more week to finish everyththing.

 Why would a developer need the full Transaction object?Say, for instance, that a developer needs to verify the account signer of a vote. He would go request to the rpc-api endpoint get_account_historyfor the desired account, and loop over until finding the right match.

Guess what? The returned "pseudo-transaction" has no signature. Neither has extensions, ref_block_num or ref_block_prefifix.

So basically, no signature, no way to know who is the actual signer. Developers have currently a big trouble linking operations with the full Transaction object.

PurpoTEEM rpc-api atabase endpoint get_acccount_history does provide only a pseudo-transaction object. This is the form of the returned object:

    trx_id: '268de18b9d381eeaa71419c1454f5f229c785235',
    block: 35683670,
    trx_in_block: 19,
    op_in_trx: 0,
    virtual_op: 0,
    timestamp: '2019-08-19T08:15:21',
    op: [ 'vote', [Object] ]

This pseudo-transaction object is missing valuable information such as:

  • Signature
  • extensions
  • expiration
  • ref_block_num
  • ref_block_prefix

If you need the full trx object, this library will help youp you.

Under the hood

This tool is basically iterating over the blocks looking for the right time interval. We know each block happens every 3 seconds, so the algorithm does some date approximations searching in the blocks archive until finding the right one. Once the right block has been found, the full trx can be returned.


library has been design with async requests in mind.

If you want to initialise a dsteem client:

var dsteem = require('dsteem')
var client = new dsteem.client(rpc_node_address)

Each method call requires a client instance passed as argument.

There are two methods available:

  • findCommentTrx(client, author, permlink)
  • findVoteTrx(client, pseudo_trx)


$ npm i steemtrxfinder --save



TO-DO Add tests CLI browser support Add more operations support

 NPM public package


Comments 15

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12.09.2019 21:51

You got a 29.15% upvote from @promobot courtesy of @steemium!

12.09.2019 21:55

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12.09.2019 22:01

This is unnecessary. You should use the RPC call account_history_api / get_transaction if you need the full trx. It already includes all the data you are looking for.

12.09.2019 22:19

Example rpc call:
curl -sd '{"jsonrpc":"2.0", "method":"account_history_api.get_transaction", "params":{"id":"55eb04e397569e27fff8fbf04841ca7c5b9e522c"}, "id":"0"}'

Or via RESTful translation:

12.09.2019 22:27

Wondering why your RESTful api uses query params, instead of representing resources with URIs.

12.09.2019 23:03
  1. because in general parameters do mean queries, they are not static resources, they are dynamic API results.
    Some do work as plain URIs, like, as this has no parameters.
  2. consider something like
    The mapping is intuitive, instead of POSTing
    '{"jsonrpc":"2.0", "method":"database_api.list_accounts", "params": {"start":"steemit", "limit":10, "order":"by_name"}, "id":1}'
    you can instead do
  3. the current steem appbase apis require the object name (e.g., as above, they require knowing "start" as well as the value associated). Including it in the request clarifies the mapping.

This is how restful implementations work typically. You have parametes to format the specific data you are interested in.

13.09.2019 00:23

Seems like only your server ( supports the call you suggest. When using steemit rpc node I get this error msg: Assert Exception:false: This API is not supported for account history backed by RocksDB

13.09.2019 01:05

Not all api endpoints are created equal. Not all nodes support full account_history. For example, I know the minnnowsupport node doesn't support it; they sometimes forward these requests to me.

Steemit has dubbed these calls as "Working on mainnet" & "Working on testnet" so it's just a matter of finding a truly full-node endpoint.

13.09.2019 17:25

If you can explain what does it mean, I shall flood you with STEEM brother

Posted using Partiko Android

13.09.2019 16:07

I really need to find my old post, that is a great thing because I can make a list of old post which I want to read again and again.

14.09.2019 00:19

What You ask for is to build full witness node with get_transaction call enabled.

14.09.2019 08:36

Pls dont stack bid bots

Posted using Partiko Android

14.09.2019 09:34

Did you mean bid bot abuse?

15.09.2019 03:50


15.09.2019 09:50