Integration Instructions

Or how to integrate SubWallet and other Polkadot and Kusama wallets into your DApps

Overview
SubWallet, Polkadot{.js} and Talisman extensions allow DApp to connect with them by publicizing their interaction in object injectedWeb3 of window browser.
SubWallet (public with properties subwallet-js)
Polkadot{.js} (public with properties polkadot-js)
Talisman (public with properties talisman)
You can open injectedWeb3 object in Chrome devtools.
How to integrate wallets into DApps
Please refer to our examples below: 
Github Repository: https://github.com/Koniverse/SubConnect​
Demo App: https://connect.subwallet.app/​
Demo Video: https://bit.ly/38QhmfI​
Check extension's activation:
When a wallet extension is active in browser it will modify window.injectedWeb3 by adding its interaction with a specific name.
For example, check SubWallet extension by these code: window.injectedWeb3 && window.injectedWeb3['subwallet-js']
Enable intergation into your DApp by method enable() of extension interaction object.
const SubWalletExtension = window.injectedWeb3['subwallet-js']
const extension = await SubWalletExtension.enable()
After running, these code extension will show popup confirmation to confirm integration into your DApp
After enabling, extension variable can contain these objects:
accounts: Allow getting accounts' data with 2 methods, get and subscribe.
signer: Allow signing data with 2 methods, signPayload and signRaw.
metadata: Allow getting additional metadata list with method get and adding/updating with method provide.
If your DApp is writen in typescript, you need to add package @polkadot/extension-inject to your package.json to get extensions interfaces.

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Last modified 8mo ago