Transferring SPL Tokens with Anchor and Web3.js In the previous tutorial, we learned how SPL tokens work. In this tutorial, we’ll implement a full SPL token lifecycle: create, mint, transfer, and...

How the SPL Token Works Solana Program Library Token (SPL Token) is Solana's standard for tokens: how to create tokens and how they should behave. It is Solana’s equivalent to Ethereum’s token...

Read account data with Solana web3 js and Anchor !Read Account Data This tutorial shows how to read account data directly from the Solana web3 Javascript client so that a web app could read it on the...

Initializing Accounts in Solana and Anchor !Storage in Solana Up until this point, none of our tutorials have used "storage variables" or stored anything permanent. In Solidity and Ethereum, a more...

Creating "mappings" and "nested mapping" in Solana !"Mappings" and "Nested Mappings" in Solana In the previous tutorials, the parameter was always empty. If we put data into it, it behaves like a key...

Deleting and Closing Accounts and Programs in Solana !Hero image showing Close accounts and programs In the Anchor framework for Solana, is the opposite of (initializing an account in Anchor) — it...

Cross Program Invocation In Anchor Cross Program Invocation (CPI) is Solana's terminology for a program calling the public function of another program. We've already done CPI before when we sent a...

#[derive(Accounts)] in Anchor: different kinds of accounts in Solana Anchor is an attribute-like macro for structs that holds references to all the accounts the function will access during its...

Init_if_needed in Anchor and the Reinitialization Attack !Hero image showing Anchor init_if_needed In previous tutorials, we've had to initialize an account in a separate transaction before we can...

Understanding Account Ownership in Solana: Transferring SOL out of a PDA !Hero image showing Solona account ownership The owner of an account in Solana is able to reduce the SOL balance, write data...

The Solana clock and other "block" variables !solana clock Today we will cover the analogs of all the block variables from Solidity. Not all of them have 1-1 analogs. In Solidity, we have the...

PDA (Program Derived Address) vs Keypair Account in Solana !Hero image showing PDA (Program Derived Address v.s. Keypair accounts) A program derived address (PDA) is an account whose address is...