Program Examples

Onchain program examples for ⚓ Anchor 🦀 Native Rust, [TS] TypeScript and 🐍 Python

This repo contains Solana onchain programs (referred to as 'Smart Contracts' in other blockchains).

Note

If you're new to Solana, you don't need to create your own programs to perform basic things like making accounts, creating tokens, sending tokens, or minting NFTs. These common tasks are handled with existing programs, for example the System Program (for making account or transferring SOL) or the token program (for creating tokens and NFTs). See the Solana Developer site to learn more.

Each folder includes examples for one or more of the following:

• anchor - Written using Anchor, the most popular framework for Solana Development, which uses Rust. Use anchor build && anchor deploy to build & deploy the program. Run anchor run test to test it.
• native - Written using Solana's native Rust crates and vanilla Rust. Use cicd.sh to build & deploy the program. Run yarn run test to test it.
• poseidon - Written using Poseidon, which converts your TypeScript code to Anchor Rust.
• seahorse - Written using the Seahorse framework, which converts your Python code to Anchor Rust. Use seahorse build && anchor deploy to build & deploy the program. Run anchor run test to test it.

If a given example is missing, please send us a PR to add it! Our aim is to have every example available in every option. We'd also love to see more programs involving staking, wrapped tokens, oracles, compression and VRF. Follow the contributing guidelines to keep things consistent.

The example programs

Basics

Hello world

Hello World on Solana! A minimal program that logs a greeting.

anchor native seahorse

Account-data

Store and retrieve data using Solana accounts.

anchor native

Storing global state - Counter

Use a PDA to store global state, making a counter that increments when called.

anchor native seahorse

Saving per-user state - Favorites

Save and update per-user state on the blockchain, ensuring users can only update their own information.

anchor

Checking Instruction Accounts

Check that the accounts provided in incoming instructions meet particular criteria.

anchor native

Closing Accounts

Close an account and get the Lamports back.

anchor native

Creating Accounts

Make new accounts on the blockchain.

anchor native

Cross program invocations

Invoke an instruction handler from one onchain program in another onchain program.

anchor native

PDA rent-payer

Use a PDA to pay the rent for the creation of a new account.

anchor native

Processing instructions

Add parameters to an instruction handler and use them.

anchor native

Storing date in program derived addresses

Store and retrieve state in Solana.

anchor native

Handling accounts that expand in size

How to store state that changes size in Solana.

anchor native

Calculating account size to determine rent

Determine the necessary minimum rent by calculating an account's size.

anchor native

Laying out larger programs

Layout larger Solana onchain programs.

anchor native

Transferring SOL

Send SOL between two accounts.

anchor native seahorse

Tokens

Creating tokens

Create a token on Solana with a token symbol and icon.

anchor native

Minting NFTS

Mint an NFT from inside your own onchain program using the Token and Metaplex Token Metadata programs. Reminder: you don't need your own program just to mint an NFT, see the note at the top of this README.

anchor native

Minting a token from inside a program

Mint a Token from inside your own onchain program using the Token program. Reminder: you don't need your own program just to mint an NFT, see the note at the top of this README.

anchor native

Transferring Tokens

Transfer tokens between accounts

anchor native seahorse

Allowing users to swap digital assets - Escrow

Allow two users to swap digital assets with each other, each getting 100% of what the other has offered due to the power of decentralization!

anchor

Minting a token from inside a program with a PDA as the mint authority

Mint a Token from inside your own onchain program using the Token program. Reminder: you don't need your own program just to mint an NFT, see the note at the top of this README.

anchor native

Creating an Automated Market Maker

Create liquidity pools to allow trading of new digital assets and allows users that provide liquidity to be rewarded by creating an Automated Market Maker.

anchor

Token Extensions

Basics - create token mints, mint tokens, and transfer tokens with Token Extensions

Create token mints, mint tokens, and transferr tokens using Token Extensions.

anchor

Preventing CPIs with CPI guard

Enable CPI guard to prevents certain token action from occurring within CPI (Cross-Program Invocation).

anchor

Using default account state

Create new token accounts that are frozen by default.

anchor native

Grouping tokens

Create tokens that belong to larger groups of tokens using the Group Pointer extension.

anchor

Creating token accounts whose owner cannot be changed

Create tokens whose owning program cannot be changed.

anchor

Interest bearing tokens

Create tokens that show an 'interest' calculation.

anchor

Requiring transactions to include descriptive memos

Create tokens where transfers must have a memo describing the transaction attached.

anchor

Adding on-chain metadata to the token mint

Create tokens that store their onchain metadata inside the token mint, without needing to use or pay for additional programs.

anchor

Allow a designedated account to close a mint

Allow a designated account to close a Mint.

anchor native

Usng multiple token extensions

Use multiple Token Extensions at once.

native

Non-transferrable - create tokens that can't be transferred.

Create tokens that cannot be transferred.

anchor native

Permanent Delegate - Create tokens permanently under the control of a particular account

Create tokens that remain under the control of an account, even when transferred elsewhere.

anchor

Create tokens with a transfer-fee.

Create tokens with an inbuilt transfer fee.

anchor native

Compression

Cnft-burn

Burn compressed NFTs.

anchor

Cnft-vault

Store Metaplex compressed NFTs inside a PDA.

anchor

Cutils

Work with Metaplex compressed NFTs.

anchor

Oracles

pyth

Use a data source for offchain data (called an Oracle) to perform activities onchain.

anchor seahorse

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