WalletConnect with telegram bot

[thanhnguyennguyen]

I have an idea to build a telegram bot which pair with user wallet via walletConnect to make on chain transaction via telegram
My intended workflow is

• User login their wallet using walletConnect (Telegram Bot will show an QR for them to scan and login)
• User type commands to make transaction
• TelegramBot makes an transaction and ask user Sign transaction via mobile wallet (supported WalletConnect)
• Broadcast transaction

However
AFAIK, WalletConnect is pairing with browser only
is there any solution to pair a wallet ( supported WalletConnect) with Telegram Bot (basically it' a nodeJS backend)

[glitch-txs]

You can try this with sign API or core API from a backend

[thanhnguyennguyen]

Checking core package https://docs.walletconnect.com/2.0/api/core/pairing
But I'm still not clear how to generate QR code from backend for user to scan it and connect wallet

[glitch-txs]

You generate the QR code with the uri :)

[thanhnguyennguyen]

oh :) , thanks

[thanhnguyennguyen]

using typescript, install @WalletConnect i got this error

1 export declare function getBrowerCrypto(): Crypto;
                                             ~~~~~~

node_modules/@walletconnect/environment/dist/cjs/crypto.d.ts:2:44 - error TS2304: Cannot find name 'SubtleCrypto'.

2 export declare function getSubtleCrypto(): SubtleCrypto;
                                             ~~~~~~~~~~~~


Found 2 errors in the same file, starting at: node_modules/@walletconnect/environment/dist/cjs/crypto.d.ts:1

any solution ?

[glitch-txs]

hmm @0xasimetriq does core requires lokijs for backend? any workaround to this?

Maybe try adding some polyfill for SubtleCrypto interface, I'd assume is this one 🤔

[xzilja]

I believe it needs it as alternative to localStorage yes.

[grzyslaw]

Hey, did you guys made any progress regarding the integration? If so, would you please be so kind to share some insights?

[Ydev1992]

Hi, so do you have telegram bot that do wallet connect just like gateway?

[christopheSeeka]

Can anyone who figured it share an example please? I would love to be able to do that too.

[sidebyandrew]

a suck but work solution

https://docs.hotkeyswap.com/miscellaneous/connect-wallet-troubleshoot-guide/connecting-metamask-wallet-on-ios-a-step-by-step-guide