Add support for Hashflow to OUSD DApp

OriginProtocol / origin-dollar

OUSD and OETH are stablecoins that passively accrue yield while you are holding it

https://originprotocol.com

MIT License

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Add support for Hashflow to OUSD DApp #891

Open joshfraser opened 2 years ago

joshfraser commented 2 years ago

Hashflow is a new DeFi trading platform that utilizes market makers to provide tighter spreads. Professional market makers frequently publish signed quotes offchain that anyone can submit onchain to redeem. We're currently testing out an OUSD pool. Once it's fully live, we'll probably want to integrate it into our DApp to make sure we're tapping into all the available liquidity sources.

Hashflow OUSD/USDT/USDC pool: https://next.hashflow.com/pool/0xbeed0d1c5f7e2988570ff70a22332d555d6d7657

Hashflow docs: https://docs.hashflow.com

DanielVF commented 2 years ago

That's a quite interesting setup. Feels like there will be money to made here somehow:

You can MM without any gas fees to you
But, this moves to a different beat than the rest of the chain. Signed signatures give optionality to the person who grabbed them. Anyone who gets a sig can choose to execute or not, based on if it's favorable or not at the time. Actually seems that will individual traders won't get hit, market makers will get MEV'd mercilessly on price changes.
Seems like plenty of room to spam it with RFQ's. If someone gives you a bad price, execute - it's like beating a piñata until you get candy.

joshfraser commented 2 years ago

I haven't looked, but I'm assuming there are very short TTL's on those offers.

sparrowDom commented 2 years ago

Market maker answers with the quoteExpiry property which defines the TTL. Curious who in this case would be doing the MM part? AFAIK even when the funds are in the pool someone needs to implement the server to answer with quotes and signatures.