Program Patterns

10 pages in this section.

How common Solana program design patterns fit together: access control, initialization, fees and treasuries, state machines, and time - one blueprint for durable on-chain behavior.

Explainer On Chain Program Patterns Patterns State Machines

Program Patterns Basics

Common building blocks for programs.

Rust Patterns On Chain Basics

Account Initialization Patterns

Safe `init`, `init_if_needed`, and reinit guards.

Rust Init Accounts Security

Vault & Escrow

Holding and releasing assets with PDAs.

Rust Vault Escrow Pda

State Machines On-Chain

Rust State Machine Workflow Patterns

Access Control & Authorities

Rust Access Control Admin Authority

Fee & Treasury Patterns

Collecting and distributing fees.

Rust Fees Treasury Tokens

Time & Clock

Using `Clock`/slots for schedules and locks.

Rust Clock Sysvar Time

Upgrade-Safe Data Design

Rust Upgrade Schema Migration

Program Patterns Best Practices

Composable, secure, upgradeable designs.

Rust Patterns Best Practices List

Program Patterns

Search Documentation

Program Patterns