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# Basic Operations - Anchor Programs

Standalone Anchor programs for compressed accounts.

## Structure

Each operation is an independent Anchor project:

- **create** - Initialize a new compressed account
- **update** - Modify data in an existing compressed account
- **close** - Clear account data while preserving address
- **reinit** - Reinitialize a closed account
- **burn** - Permanently delete a compressed account

Each project contains its own workspace, program, and tests.

## Build

Navigate to a specific project directory and build:

```bash
cd create/  # or update/, close/, reinit/, burn/
anchor build

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Test

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Requirements

  • light cli version 0.27.1-alpha.2+ (install via npm install -g @lightprotocol/zk-compression-cli@0.27.1-alpha.2)
  • solana cli version 2.1.16+
  • anchor version 0.31.1+
  • Node.js and npm

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Running Tests

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Rust Tests

cd create/  # or update/, close/, reinit/, burn/
cargo test-sbf

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TypeScript Tests

  1. Build the program and sync the program ID: 
    cd create/  # or update/, close/, reinit/, burn/
anchor build && anchor keys sync && anchor build
  2. Start the test validator with the program deployed: 
    light test-validator --sbf-program "<PROGRAM_ID>" ./target/deploy/<program_name>.so
    NOTE: Replace <PROGRAM_ID> with the ID from Anchor.toml and <program_name> with create, update, close, reinit, or burn.
  3. Install dependencies and run tests: 
    npm install
anchor test --skip-local-validator --skip-build --skip-deploy
The TypeScript tests demonstrate client-side interaction with compressed accounts using @lightprotocol/stateless.js. light test-validator spawns the following background processes:
  1. solana test validator http://127.0.0.1:8899
  2. prover server http://127.0.0.1:3001
  3. photon indexer http://127.0.0.1:8784
You can kill these background processes with lsof -i:<port> and kill <pid>.

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Disclaimer

This reference implementation is not audited. The Light Protocol programs are audited and deployed on Solana devnet and mainnet.