vuex-bitshares/src/actions/assets.js

Vue way to build DAP's on bitshares net

import * as types from '../mutations';
import API from '../services/api';
import { arrayToObject } from '../utils';
import config from '../../config';

/**
 * Fetches assets objects from bitsharesjs-ws
 * @param {Array} assets - list of assets ids/symbold to fetch
 */
export const fetchAssets = async (store, { assets }) => {
  const { commit, getters } = store;
  const currentAssetsIds = Object.keys(getters.getAssets);

  // filter out existing assets
  const filteredAssets = assets.filter(id => currentAssetsIds.indexOf(id) === -1);

  commit(types.FETCH_ASSETS_REQUEST);
  const result = await API.Assets.fetch(filteredAssets);

  if (result) {
    // to remove prefix specified in config (e.x. ".OPEN")
    const prefix = config.removePrefix;
    if (prefix) {
      result.forEach(asset => {
        if (asset.symbol.substring(0, prefix.length) === prefix) {
          asset.symbol = asset.symbol.slice(prefix.length);
        }
      });
    }

    const composedResult = arrayToObject(result);

    commit(types.FETCH_ASSETS_COMPLETE, { assets: composedResult });
    return composedResult;
  }
  commit(types.FETCH_ASSETS_ERROR);
  return null;
};

/**
 * Fetches default assets objects via fetchAssets function
 to save default assets ids
 */
export const fetchDefaultAssets = async (store) => {
  const { commit } = store;
  const { defaultAssetsNames } = config;
  const assets = await fetchAssets(store, { assets: defaultAssetsNames });
  if (assets) {
    const ids = Object.keys(assets);
    commit(types.SAVE_DEFAULT_ASSETS_IDS, { ids });
  }
};