Serialization

10 pages in this section.

Why Solana account bytes need a layout: Borsh, discriminators, space and rent, realloc, versioning, and zero-copy trade-offs.

Explainer Account Data Serialization Borsh Zero Copy

Serialization Basics

Learn to serialize account data in Solana with 10 Rust examples. Explore Borsh for small states and zero-copy for large, fixed-size data.

Rust Serialization Borsh Zero Copy

Account Discriminators

Learn how account discriminators identify data structures, prevent type confusion attacks, and validate account types in Solana programs.

Rust Discriminator Anchor Security

Borsh Structs

Design Solana account data with Borsh structs. Learn to define, size, and version structs for stable field order and schema upgrades.

Rust Borsh Structs Layout

Zero-Copy Accounts

Rust Zero Copy Bytemuck Accounts

realloc & Growing Accounts

Learn how to resize Solana account data using realloc syscalls or CPIs. Understand rent implications, safety, and common pitfalls when growing or shrinking accounts.

Rust Realloc Rent Accounts

Space Calculation

Calculate Solana account space and rent-exempt minimum. Learn to sum discriminators and fields, query Rent, and avoid common sizing gotchas.

Rust Space Rent Sizing

Data Versioning & Migration

Rust Migration Versioning Upgrade

Serialization Best Practices

Learn best practices for Rust account data serialization. Design auditable, migration-friendly layouts resistant to type confusion and partial read/write bugs.

Rust Serialization Best Practices List

Serialization Highlights Summary

A single-page roundup of every highlight bullet from the 9 pages in the Serialization section, grouped by source page so you can scan all 53 takeaways without opening each article individually.

Highlights Summary Account Data Serialization

Serialization

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Serialization