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MixPay+ integration guide

Integrate into MixPay Checkout page with your wallet payment method.


This document is used to guide crypto wallet App developers to integrate your payment functionality into MixPay's Checkout Page.

You can visit this link to experience MixPay's Checkout Page.

After integration, when users scan the payment QRCode with your wallet App and open the MixPay Checkout Page, they can use your wallet to pay. And the User Experience is close to App Native.

Get started

In your app's Webview, inject the global window.mixpayPlus variable into our Checkout Page under the domain name

The mixpayPlus object needs to have the following configuration and methods:

window.mixpayPlus = {
appId: 'your-wallet-name',
appName: 'XXX Pay',
appIcon: '', // Custom icon
themeColor: '#fff', // Customize button background color
assetList: [], // List of supported payment currencies
ready: false, // Are the `pay` methods available?
pay: function(optionsJSON) {} // Button click triggers the callback method

Properties explain

appIdStringCustom unique identification , used for page identification wallet, statistical source, etc., it is recommended to be consistent with the wallet nameFor example, the appId of the Image is mixin, indicating that the source is Mixin Wallet ; if your wallet is called binance, please fill in as binance
appNameStringCustom button nameJust like the Mixin Pay button in Image 1, the value of appName is "Mixin Pay"
appIconStringCustom button iconTaking Image 1 as an example, the Image in front of the word "Mixin Pay" in the Mixin Pay button is customized by this appIcon
themeColorStringCustomize button background color'#fafafa'
readyBooleanAre the pay methods available?true
assetListArrray <String>List of supported payment currencies['43d61dcd-e413-450d-80b8-101d5e903357'] Support ETH, see asset list API
payFunctionButton click triggers the callback methodHere in the callback Function, you can write your payment logic, such as calling the native interface of the App to initiate a transfer, or calling indeplink to initiate a transfer.

Image 1: Callback method = function(optionsJSON) {}
  1. Pay is a callback method, the role is to evoke the wallet to the specified address to the specified number of currency , click the button above will be called ;
  2. This method is customized by you. It can be implemented natively or by DeepLink and other means ;
  3. Success or failure of order payment is subject to MixPay's confirmation of receipt of currency or confirmation of order failure ;
  4. The optionsJSON of the pay method is a json string, for the convenience of native direct use. string includes the following
assetIdStringCurrency to be paid Asset identificationSee list of assets API
chainAssetIdStringThe asset identification of the main chain currency of the currency to be paidSee list of assets API
chainIdStringHexadecimal number, the network Id of the main chain currency'0x1 ' - Used to distinguish a coin on multiple chains, see Appendix 1
amountStringDecimal digits, the precision problem uses string type'0.001'
addressStringCurrency receiving address
memoStringRemarks, memo (if EOS transfer requires memo field, please use the given value)
contractStringContract address (if the contract is used for transfer, or the given value can be used when determining the currency and other requirements)
symbolStringCurrency abbreviation , this should correspond to the currency in Schedule 1ETH
precisionNumberCurrency transfer accuracy6

Appendix 1: chainId possible parameters

0x1 Ethereum Mainnet
0x120c7 Mixin Virtual Machine
0x89 Polygon Mainnet
0x38 Binance Smart Chain