All builds

Anchor · Intermediate · ~75 min

Build a SOL Vault

Ship one small Anchor program that can hold SOL, enforce its authority, and survive adversarial tests.

Your local workspace

Download starterBegin stage 1

Build locally, then upload only target/deploy/sol_vault.so.

The path

  1. 01

    Create the vault

    Give every authority one deterministic vault PDA.

  2. 02

    Accept deposits

    Move SOL in and keep an honest internal balance.

  3. 03

    Withdraw safely

    Let the owner withdraw without turning the vault into a drain.

  4. 04

    Defend the vault

    Make the happy path hard to abuse.

  5. 05

    Close cleanly

    Leave no stranded state behind.

    Build a SOL Vault | learn.sol | learn.sol