Solana Limit Order Program

This is a Solana program written in native Rust that allows users to create and execute limit orders for token trades. The program includes functionality for initializing an admin-controlled vault, creating orders, taking orders, and canceling orders.

Features

1. Init: Initializes the admin config account, which manages all vaults storing user funds.
2. Create Order: Users can create a limit order by specifying the token amount and price. The funds are transferred to a vault, and the order is stored off-chain in the orderbook.
3. Take Order: Another user accepts an existing order, triggering a token exchange. The taker receives tokens from the vault and sends funds to the order creator. The order book is updated accordingly.
4. Cancel Order: The order creator can cancel their order, retrieving their funds and removing the order from the order book.

Installation and Setup

1. Clone the repository

git clone https://github.com/AhzamAkhtar/solana-limit-order-native

2. Install dependencies to tests

Ensure you have Node.js and npm installed, then run:

npm install

3. Build and deploy the program

cargo build-sbf --manifest-path=Cargo.toml   
solana program deploy ./target/deploy/limit_order.so

4. Start a local Solana validator

solana-test-validator

5. Run tests on localhost

npm run test

Tests Output

Test scenario-1

Test scenario-2

Contributing

Feel free to open issues and submit pull requests to improve the program.