feat: Swapper sdk demo

[rafinskipg]

WIP as we will need an RPC package

Limitation Identified

VersionedTransactions with Address Lookup Tables (ALTs) require RPC calls to resolve account keys. Currently, when parsing transactions that use ALTs, we get the error: "Failed to get account keys because address table lookups were not resolved".

Proposed Solution

Create a new @phantom/rpc package that:

• Provides internal Phantom RPC access for account resolution
• Handles Address Lookup Table resolution for VersionedTransactions
• Offers utility methods like resolveAddressLookupTables(transaction, rpc)
• Integrates with SwapperSDK for complete transaction parsing

Integration Plan

// Future SwapperSDK enhancement
import { resolveTransactionAccounts } from '@phantom/rpc'

export async function getSolanaTransactionFromQuote(
quote: SwapperSolanaQuoteRepresentation,
rpcEndpoint?: string
): Promise<VersionedTransaction[]> {
const transactions = parseTransactionStrings(quote.transactionData)

// Resolve ALTs using internal Phantom RPC
return await Promise.all(
transactions.map(tx => resolveTransactionAccounts(tx, rpcEndpoint))
)
}

Dependencies

• SwapperSDK → RPC package → Internal Phantom RPC endpoints
• Enables full transaction resolution and execution for complex swaps

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	@​types/​react-dom@​18.3.7
	@​types/​react@​18.3.23
	vite@​5.4.19
	eslint-plugin-react-refresh@​0.4.20
	eventsource@​2.0.2
	react-dom@​18.3.1

View full report