Execution Venues

How to integrate Tycho in different execution venues.

Cow Protocol

To solve orders on CoW Protocol, you'll need to prepare your solution following specific formatting requirements.

First, initialize the encoder with the tycho_router shortcut:

let encoder = EVMEncoderBuilder::new()
    .chain(Chain::Ethereum)
    .initialize_tycho_router()
    .expect("Failed to create encoder builder")
    .build()
    .expect("Failed to build encoder");

This means that the TychoRouter will use a transferFrom to transfer the token in.

When solving for CoW Protocol, you need to return a Solution object that contains a list of interactions to be executed in sequence.

To solve with the Tycho Router you only need one custom interaction where:

1. callData is the data returned from encoder.encode_router_calldata(...)

2. allowances is a list with one entry where the allowance for the token in and amount in is set for spender to be the Tycho Router. This is necessary for the transferFrom to work.

Other competition venues

For other venues, like UniswapX or 1inch Fusion, please contact us.