solana: make local fill handling less expensive - Githubissues

wormhole-foundation / example-liquidity-layer

Apache License 2.0

13 stars 12 forks source link

solana: make local fill handling less expensive #48

Closed a5-pickle closed 6 months ago

a5-pickle commented 7 months ago

Current workflow after auction plays out for USDC destined for Solana:

Execute Order (creates posted message account)
Integrator listens to VAA
Integrator posts VAA (creates signature set + posted VAA accounts)
Redeem fill (creates redeemed fast fill account for replay protection)

Proposed revision to workflow:

Execute Order (creates posted message account and fast fill dummy account)
Integrator listens to VAA to read posted message pubkey
Redeem fill using this posted message pubkey (closes fast fill dummy account)

This workflow should make an integration on Solana cheaper because he will not have to pay to post a VAA + create an account for replay protection.

Cost to the winning auction participant should be the same because he will receive lamports from closed fast fill dummy account.