Invariant SDK

Invariant consists of two main parts: smart contract and SDK. Both of them are in a single public repository on our Github. Most methods and data structures have their equivalent in both of them.

• Rust Program
• Typescript SDK

SDK is written in Typescript as an npm package and is a wrapper for the smart contract. It takes care of low-level aspects, such as signing transactions and storing constant addresses, making writing client code easier.

We use the following naming standard for our functions:

For the fnName function:

• fnName() sending tx, require KeyPair to sign,
• fnNameIx(), fnNameInstruction() - return instruction,
• fnNameTx(), fnNameTransaction() - return transaction.