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const dataURItoBlob = (dataURI, type) => { | |
const byteString = atob(dataURI.split(',')[1]); | |
const ab = new ArrayBuffer(byteString.length); | |
const ia = new Uint8Array(ab); | |
for (let i = 0; i < byteString.length; i++) { | |
ia[i] = byteString.charCodeAt(i); | |
} | |
return new Blob([ab], { | |
type |
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function paginate(query = {}, options = {}, callback) { | |
const limit = options.limit || 10; | |
let page = options.page || 1; | |
const countQuery = this.find(query).count(); | |
return new Promise(resolve => { | |
countQuery.exec().then(count => { | |
const pages = Math.ceil(count / limit) || 1; |
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// Given a number, say prod (for product), we search two Fibonacci numbers F(n) and F(n+1) verifying F(n) * F(n+1) = prod | |
// My solution to the code wars challenge https://www.codewars.com/kata/5541f58a944b85ce6d00006a/train/javascript | |
// Not used for this, but here's some code to test if a number is in the Fibonacci sequence. | |
// const isPerfectSquare = num => { | |
// const sq = Math.sqrt(num); | |
// return sq * sq === num; | |
// } | |
// const isFib = num => { | |
// return isPerfectSquare(5 * num * num + 4) || isPerfectSquare(5 * num * num - 4); |
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const deepEqual = (a, b) => JSON.stringify(a) === JSON.stringify(b); |
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import React from 'react'; | |
import PropTypes from 'prop-types'; | |
import classNames from 'classnames'; | |
const ANIMATION_DURATION = 1000; | |
class BatchDropZone extends React.Component { | |
static propTypes = { |
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schema.statics = { | |
getSingleton: function (cb) { | |
this.findOne() | |
.sort({ updated: -1 }) | |
.limit(1) | |
.exec((err, model) => { | |
if (err) { | |
cb(err, null); | |
} else if (!model) { | |
cb(err, new this()); |
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if (isEnabled) { | |
// Get all the vendors in your crate. The creator of the crate (you) is | |
// added as a default vendor. | |
const { data: vendors } = await cargo.api.getCrateVendors(CRATE_ID); | |
// Map through each vendor and get the token contracts they created. | |
const contractResponses = await Promise.all( | |
vendors.map(({ vendorId }) => cargo.api.getVendorTokenContracts(vendorId)) | |
); |
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// Get the resale items for our contracts. This method | |
// takes a list of token contract IDs, not addresses. | |
// The IDs are assigned by Cargo and used internally | |
const { data: resaleItems} = await cargo.api.getContractResaleItems( | |
contracts.map(contract => contract.tokenContractId) | |
); | |
// Pass our contract data and resale items to a function that will create some markup | |
// and add it to the page. | |
displayContractContent(contracts, resaleItems); |
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function displayContractContent(contracts, resaleItems) { | |
let template = ''; | |
contracts.forEach(contract => { | |
const { name, symbol, tokenAddress, tokenContractId } = contract; | |
const currentResaleItems = resaleItems[tokenContractId]; | |
let tokenMarkup = ''; | |
currentResaleItems.forEach(token => { | |
const { metadata, price } = token; |
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const tokenRows = document.querySelector('[data-id="token-rows"]'); | |
const txConfirmation = document.querySelector('[data-id="tx-confirmation"]'); | |
// This listener checks to see if we clicked the buy now button | |
tokenRows.addEventListener('click', async evt => { | |
// If the target is the buy now button | |
if (evt.target.dataset.id === 'buy-now') { | |
// We want to get the resale ID and price we set on the button via | |
// data attributes. |
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