Support Batch Transaction Approval

[sallymoc]

Support Batch Transaction Approval

Summary

Add support for batch transaction approval when a dApp explicitly requests multiple transactions to be signed together. Users should see a summary of all transactions and be able to approve them as a group or review individually.

Background

Some dApps send multiple related transactions as a batch (e.g., approve + swap, multi-step operations). This requires handling a new method for batch requests.

EIP-5792 standardizes this with the wallet_sendCalls method, allowing dApps to send multiple calls in a single request. Major wallets like MetaMask (v12+), Coinbase Wallet, and Rainbow already support this.

References:

• https://eips.ethereum.org/EIPS/eip-5792
• https://www.eip5792.xyz/reference/sendCalls

Requirements

When a dApp sends a batch request:

• Show a summary screen listing all transactions in the batch
• Allow user to review each transaction's details
• Provide "Approve All" to sign all transactions
• Provide "Reject All" to reject the batch
• Optionally allow reviewing transactions individually with progress indicator (e.g., "1 of 3")

Acceptance Criteria

• Handle explicit batch requests from dApps
• User can see batch summary before approving
• User can approve all transactions at once
• User can reject all transactions at once

Nice to Have

• WalletConnect Request Queue System: prevents other incoming requests from interrupting while the user is reviewing the batch

References

• EIP-5792 Wallet Call API: https://eips.ethereum.org/EIPS/eip-5792
• EIP-5792 sendCalls Reference: https://www.eip5792.xyz/reference/sendCalls