CCTP(USDC) destination-action adapter

[dpbpolymer]

User story:

• As a user I want to bridge my USDC and swap it on the destination rollup, deposit it into a vault or send to a different address.
• As an application I want to enable my users to deposit into my USDC vaults in a single-click from any other rollup without having to bridge separately.

Objectives:

• Build an interface that application developers can use to enable one-click USDC cross-chain actions. Wherein USDC is bridged via CCTP and an action is performed via Polymer once funds reach the destination.

Implementation tips:

• CCTP is the native bridge for transferring USDC between chains, many times users have to bridge their tokens and then perform an action on another chain.
• You can reduce the UX overhead by designing an interface that developers can to embed in their application and allow for easy cross-chain deposits via CCTP.
• You can choose to deploy a vault contract on Base that the user wishes to deposit funds in, and bridge their test USDC from Optimism.
• Kudos if you can build a deposit UI wherein users can select which chain they want to bridge USDC from and then deposit in the contract/vault directly.
• Fun fact: On mainnet can use Socket or LiFi to enable wider token support.

References: CCTP and testnet contracts