Solvent Index Program

Anchor workspace for the Solvent Index options protocol on-chain program.

Layout

• programs/mhi/ — Rust program source
• tests/ — TypeScript integration tests (mocha + anchor-bankrun)
• Anchor.toml — Anchor workspace config
• Cargo.toml / Cargo.lock — Rust workspace
• package.json / tsconfig.json — test harness deps

Build & test

npm install
anchor build
anchor test            # full validator
npm test               # bankrun-only suite

The program ID is declared in Anchor.toml ([programs.localnet]) and in programs/mhi/src/lib.rs (declare_id!). Update both if you redeploy under a new keypair.

IDL

anchor build emits the IDL and TypeScript bindings as a side effect:

• target/idl/mhi.json - IDL consumed by clients and explorers
• target/types/mhi.ts — TypeScript types used by the test harness

To regenerate the IDL without a full program rebuild:

anchor idl build -o target/idl/mhi.json

To publish the IDL on-chain after deployment (so explorers and clients can fetch it from the program account):

anchor idl init <PROGRAM_ID> --filepath target/idl/mhi.json
anchor idl upgrade <PROGRAM_ID> --filepath target/idl/mhi.json   # subsequent updates

To fetch the on-chain IDL of a deployed program:

anchor idl fetch <PROGRAM_ID> -o solvent_index.json