etkframework/operations/getAsset.js

First test release of Etk over colored coins SDK

// #!/usr/local/bin/node --harmony

/**
 * Etk Operations library.
 * A wrapper using Colored Coins SDK to create standard token functions that can
 * be used to build EarthShares.
 * Core Developer(s): @codecakes Akul Mathur akul at earthbenign dot com
 * Maintainer(s):
 *              @codecakes Akul Mathur akul at earthbenign dot com
 */

"use strict";

const
    path = require("path"),
    settingsCreate = require('./opHelper/settingsHelper').settingsCreate,
    //minified client side version of the the main colu library
    Colu = require("colu"),
    getAssetData = function getAssetData (network, apiKey, privateSeed, asset, cb) {
        /**
         * @params:
         *  privateSeed: The Pvt key of the user
         *  cb: CallBack function to process the queried asset reponse
         *  asset: The asset JSON attributes:
         *      assetId: ID of the issued Asset
         *      addresses: A list of addresses to filter down to/track
         *      confirmations: Number of Block confirmations in the blockchain to filter the
         *                  valid TXNs. High confirmations are more regarded.
         *
         *      var assetId = 'U831iMR6M2aXdDSSmY3tyY7ZqpaCqLXQZKWJt'
                var addresses = ['mw7hLtuo9vnBNCs9PL7i2h7oqDfs4j8NJG']
                var confirmations = 6

                var asset = {
                assetId: assetId,
                addresses: addresses,
                numConfirmations:confirmations
            }
         */

        const
            //initialize colu object with settings
            colu = new Colu(settingsCreate(network, apiKey, privateSeed));

        colu.on('connect', function () {
            colu.coloredCoins.getAssetData(asset,function (err, body) {
                let res = {};

                if (err) {
                    res.err = err;
                    res.type = "error";
                } else {
                    res.body = body;
                    res.type = "message";
                }
                cb(res);
            });
        });

        colu.init();
    };

exports.getAssetData = getAssetData;