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# Compressed Counter Program (Anchor)

A counter program built with the Anchor framework. Includes instructions to create a zk-compressed PDA account, increment, decrement, reset the counter value, and close the account.

## Build

```bash
anchor build

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Test

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Requirements

  • light cli version 0.24.0+ (install via npm i -g @lightprotocol/zk-compression-cli)
  • 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

cargo test-sbf

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TypeScript Tests

  1. Build the program and sync the program ID: 
    anchor build && anchor keys sync && anchor build
  2. Start the test validator 
    light test-validator --sbf-program "GRLu2hKaAiMbxpkAM1HeXzks9YeGuz18SEgXEizVvPqX" ./target/deploy/counter.so
NOTE: Replace the program ID above with the one generated in your Anchor.toml file.
  1. 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 and @lightprotocol/zk-compression-cli. $ 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.