CoinStats - A NodeJS Cryptocurrency Statistic Bot - Automatic posting to Steemblockchain

About

CoinStats is a NodeJS Cryptocurrency Statistic Bot for Steemit or other Platforms. CoinStats retrieves the last 24 hours of historical data for specified coins and generates line chart images from them. These images are uploaded directly to the LBRY Blockchain and a Markdown File is generated, which is uploaded to Steemit.

New Features

What feature(s) did you add?

V.0.2 removes the vertical axis grid lines from all charts, to make them overall beautifuler. Also another minor change was to increase the wait time between uploading images into to LBRY blockchain. The timeout is now set to 90 seconds and should remove all 502 Bad Gateway errors.

e.g.

The major change of V.0.2 was the implementation of automatic posting to the steemit blockchain. Now when markdown is generated it will be automatically uploaded to your steemit account.

How did you implement it/them?

Beautifuler Graphs

• See GitHub Commit

Increased Timeout

• See GitHub Commit

Uploading to Steem Blockchain

The library SteemJS was used to broadcast the new comment, also I changed the code logic a little bit to provide valid json_metadata infos.

function broadcastToSteemBlockchain(data, timestamp) {

    const json_metadata = {
        "tags": [
            "coin",
            "cryptocurrency",
            "bitcoin",
            "steem",
            "crypto"
        ],
        "links": data.links,
        "image": data.images,
        "format": "markdown",
        "app": "coinstats\/0.2"
    };

    steem.broadcast.comment(
        config.private_posting_key,
        '',
        'coin',
        config.account,
        timestamp + '-coinstats-daily-cryptocurrency-statistic-service',
        'CoinStats - Daily Cryptocurrency Statistic Service',
        data.markdown,
        json_metadata
    );
}

Shows the actual broadcast method.

In the same turn I have a added a config file to provide informations about the account, it's posting_key, and the steem api endpoint.

• See GitHub Commit

Roadmap

• V.0.1:
  • Markdown File generation
  • Chart generation
  • Upload to LBRY Blockchain
• V.0.2:
  • Create directly Steemit Post
  • Better Charts
• V.0.3:
  • Bar Charts shows only percentage change over last week
  • Toggle Steemit auto posting via config
• V.1.0:
  • More information (e.g different Charts for each Coin)
  • Running on a Server and automatically post every day
  • Custom messages for the coins
  • Better overall layout

PROOF for GitHub Account benediktveith

Click here :)

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Posted on Utopian.io - Rewarding Open Source Contributors

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