Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
In order to abstract away fees / gas limits, we can introduce a third party contract that relays the deposit message and deals with fees. The simple flow is:
claimDeposit
on behalf of user - receiving the deposited ETHThe relayer profits the difference between the fee and any gas cost incurred by calling
relayMessage
. It is up to the relayer to determine if this is a profitable trade for them. The user will always get a determined amount (i.e amount deposited - fee).I suspect other protocols / relayers might deploy their own relayer contract with a more complex fee mechanism.