Sales

The ultimate guide to integrate crypto token sales.

DePay Sales allows you easily sell tokens directly from your website or DApp while accepting thousands of crypto assets as means of payment.

Preparation

In order to to sell tokens in a decentralized way on any blockchain you need to have a decentralized liquidity pool (dex pair) on any decentralized exchange:

Create Uniswap v2 Liquidity Pool

Create Pancakeswap Liquidity Pool

Button

The DePay Sales button allows you to directly sell tokens from your website or DApp without any further installation of javascript packages. Just use our button to open a widget that uses your configuration.

<div class="DePayButton" label="Buy" widget="Sale" arguments='{"amount": {"start": "10","min": "1","step": "1" }, "token": "0xa0bEd124a09ac2Bd941b10349d8d224fe3c955eb"}'></div>

<script src="https://depay.fi/integrate/buttons/v2.js"></script>

<noscript><a href="https://depay.fi">DePay</a> is currently not supported without JavaScript enabled.</noscript>

<script>DePayButtons.init({document: document});</script>

Use our configurator to make sure you pass the correct configuration.

Widget

If you want to open our widget directly from your application code, use our widget library.

Installation

You can either load the depay-widgets package via CDN:

<script src="https://depay.fi/integrate/widgets/v2.js"></script>

or you install depay-widgets via the package manager of your choice and ship it as part of your application bundle:

yarn add depay-widgets

npm install depay-widgets --save

Load the DePayWidgets package wherever you need it and call th Sale method:

import DePayWidgets from 'depay-widgets';

DePayWidgets.Sale({
  amount: {
    min: 1,
    start: 10,
    step: 1
  },
  token: '0xa0bEd124a09ac2Bd941b10349d8d224fe3c955eb',
  blockchains: ['ethereum']
});

Configuration

You need to pass a configuration object to DePayWidgets.Sale which needs to at least contain amount.start,amount.min,amount.step,token and blockchains.

DePayWidgets.Sale({
  amount: {
    min: 1,
    start: 10,
    step: 1
  },
  token: '0xa0bEd124a09ac2Bd941b10349d8d224fe3c955eb',
  blockchains: ['ethereum']
});

You can also sell the same token on multiple blockchains:

DePayWidgets.Sale({
  amount: {
    min: 1,
    start: 10,
    step: 1
  },
  token: '0xa0bEd124a09ac2Bd941b10349d8d224fe3c955eb',
  blockchains: ['ethereum', 'bsc']
});

amount

The amount object contains the amount of preselected tokens when the widget opens (start), the minimum amount of tokens the user can select in the widget (min) and by which number the amount increments/decrements when changed by the user (step).

The BigNumber of that amount will be calculated internally including finding the right amount of decimals for the given token. So please just pass the amount in a human readable form: e.g. "20" for 20 USDT and NOT "2000000" (BigNumber).

token

The address of the token you want to receive.

connected

A function that will be called once the user connects a wallet.

This function will be called with the connected wallet address as the main argument:

DePayWidgets.Payment({

  connected: (address)=> {
    // do something with the address
  }
})

sent

A function that will be called once the payment has been sent to the network (but still needs to be mined/confirmed).

The widget will call the this function passing a transaction as single argument. See: depay-web3-transaction for more details.

DePayWidgets.Payment({

  sent: (transaction)=> {
    // called when payment transaction has been sent to the network
  }
})

confirmed

A function that will be called once the payment has been confirmed once by the network.

The widget will call the this function passing a transaction as single argument. See: depay-web3-transaction for more details.

DePayWidgets.Payment({

  confirmed: (transaction)=> {
    // called when payment transaction has been confirmed once by the network
  }
})

ensured

A function that will be called once the payment has been confirmed enough times to consider it's "ensured" (e.g. 12 confirmations on Ethereum).

The widget will call the this function passing a transaction as single argument. See: depay-web3-transaction for more details.

DePayWidgets.Payment({

  ensured: (transaction)=> {
    // called when payment transaction has been confirmed X times by the network
  }
})

failed

A function that will be called if the payment execution failed on the blockchain (after it has been sent/submitted).

The widget will call the this function passing a transaction as single argument. See: depay-web3-transaction for more details.

DePayWidgets.Payment({

  failed: (transaction)=> {
    // called when payment transaction failed on the blockchain
    // handled by the widget, no need to display anything
  }
})

critical

A function that will be called if the widget throws an critical internal error that it can't handle and display on it's own:

DePayWidgets.Payment({
  
  critical: (error)=> {
    // render and display the error with error.toString()
  }
})

error

A function that will be called if the widget throws an non-critical internal error that it can and will handle and display on it's own:

DePayWidgets.Payment({

  error: (error)=> {
    // maybe do some internal tracking with error.toString()
    // no need to display anything as widget takes care of displaying the error
  }
})

providers

Allows to set providers to be used for making RPC calls to the individiual blockchains:

DePayWidgets.Payment({

  providers: {
    ethereum: ['http://localhost:8545'],
    bsc: ['http://localhost:8545']
  }
})

currency

Allows you to enforce displayed local currency (instead of automatically detecting it):

DePayWidgets.Payment({

  currency: 'USD'

})

blacklist

Allows to blacklist tokens so that they will not be suggested as means of payment (from the sender):

DePayWidgets.Payment({
  
  blacklist: {
    ethereum: [
      '0x82dfDB2ec1aa6003Ed4aCBa663403D7c2127Ff67',  // akSwap
      '0x1368452Bfb5Cd127971C8DE22C58fBE89D35A6BF',  // JNTR/e
      '0xC12D1c73eE7DC3615BA4e37E4ABFdbDDFA38907E',  // KICK
    ],
    bsc: [
      '0x119e2ad8f0c85c6f61afdf0df69693028cdc10be', // Zepe
      '0xb0557906c617f0048a700758606f64b33d0c41a6', // Zepe
      '0x5190b01965b6e3d786706fd4a999978626c19880', // TheEver
      '0x68d1569d1a6968f194b4d93f8d0b416c123a599f', // AABek
      '0xa2295477a3433f1d06ba349cde9f89a8b24e7f8d', // AAX
      '0xbc6675de91e3da8eac51293ecb87c359019621cf', // AIR
      '0x5558447b06867ffebd87dd63426d61c868c45904', // BNBW
      '0x569b2cf0b745ef7fad04e8ae226251814b3395f9', // BSCTOKEN
      '0x373233a38ae21cf0c4f9de11570e7d5aa6824a1e', // ALPACA
      '0x7269163f2b060fb90101f58cf724737a2759f0bb', // PUPDOGE
      '0xb16600c510b0f323dee2cb212924d90e58864421', // FLUX
      '0x2df0b14ee90671021b016dab59f2300fb08681fa', // SAFEMOON.is
      '0xd22202d23fe7de9e3dbe11a2a88f42f4cb9507cf', // MNEB
      '0xfc646d0b564bf191b3d3adf2b620a792e485e6da', // PIZA
      '0xa58950f05fea2277d2608748412bf9f802ea4901', // WSG
      '0x12e34cdf6a031a10fe241864c32fb03a4fdad739' // FREE
    ]
  }
})

style

Allows you to change the style of the widget.

DePayWidgets.Payment({
  style: {
    colors: {
      primary: '#ffd265',
      text: '#e1b64a',
      buttonText: '#000000',
      icons: '#ffd265'
    },
    fontFamily: '"Cardo", serif !important',
    css: `
      @import url("https://fonts.googleapis.com/css2?family=Cardo:wght@400;700&display=swap");

      .ReactDialogBackground {
        background: rgba(0,0,0,0.8);
      }
    `
  }
})

colors

Allows you to set color values:

DePayWidgets.Payment({
  
  style: {
    colors: {
      primary: '#ffd265',
      text: '#ffd265',
      buttonText: '#000000',
      icons: '#ffd265'
    }
  }
})

fontFamily

Allows you to set the font-family:

DePayWidgets.Payment({
  
  style: {
    fontFamily: '"Cardo", serif !important'
  }
})

css

Allows you to inject CSS:

DePayWidgets.Payment({
  
  style: {
    css: `
      @import url("https://fonts.googleapis.com/css2?family=Cardo:wght@400;700&display=swap");

      .ReactDialogBackground {
        background: rgba(0,0,0,0.8);
      }
    `
  }
})

unmount

Allows you to unmount (the React safe way) the entire widget from the outside:

let { unmount } = await DePayWidgets.Payment({})

unmount()

Configurator

We are currently migrating the configurator to v2...