Crate better_auth 

Better Auth - Rust

A comprehensive authentication framework for Rust, inspired by Better-Auth.

Quick Start

use better_auth::{AuthBuilder, AuthConfig};
use better_auth::adapters::MemoryDatabaseAdapter;
use better_auth::plugins::EmailPasswordPlugin;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let config = AuthConfig::new("your-secret-key-that-is-at-least-32-chars");

    let auth = AuthBuilder::new(config)
        .database(MemoryDatabaseAdapter::new())
        .plugin(EmailPasswordPlugin::new())
        .build()
        .await?;

    Ok(())
}

Re-exports

pub use core::AuthBuilder;

pub use core::BetterAuth;

pub use core::TypedAuthBuilder;

pub use better_auth_core as types_mod;

Modules

adapters

core

handlers

plugins

types

Structs

Account

Account linking (for OAuth providers) - matches OpenAPI schema

Argon2Config

Argon2 hashing configuration

AuthConfig

Main configuration for BetterAuth

AuthContext

Context passed to plugin methods

AuthRequest

Authentication request wrapper

AuthResponse

Authentication response wrapper

AuthRoute

Route definition for plugins

BodyLimitConfig

Configuration for body size limit middleware.

BodyLimitMiddleware

Body size limit middleware.

ConsoleEmailProvider

Development email provider that logs emails to stderr.

CorsConfig

Configuration for CORS middleware.

CorsMiddleware

CORS middleware.

CreateAccount

Account creation data

CreateSession

Session creation data

CreateUser

User creation data

CreateVerification

Verification token creation data

CsrfConfig

Configuration for CSRF protection middleware.

CsrfMiddleware

CSRF protection middleware.

DeleteUserResponse

EndpointRateLimit

Rate limit parameters for a single endpoint.

HookedDatabaseAdapter

A database adapter wrapper that calls hooks around the inner adapter’s operations.

JwtConfig

JWT configuration

MemberUserView

Minimal user info for member-related API responses.

MemoryCacheAdapter

In-memory cache adapter for testing and development

MemoryDatabaseAdapter

In-memory database adapter for testing and development

OpenApiBuilder

Builder for constructing an OpenAPI spec from plugins and core routes.

OpenApiSpec

Minimal OpenAPI 3.1.0 spec builder that collects routes from plugins.

Passkey

Passkey authentication - matches OpenAPI schema

PasswordConfig

Password hashing configuration

RateLimitConfig

Configuration for the rate limiting middleware.

RateLimitMiddleware

In-memory sliding-window rate limiter.

Session

Session information - matches OpenAPI schema

SessionConfig

Session-specific configuration

SessionManager

Session manager handles session creation, validation, and cleanup

TwoFactor

Two-factor authentication - matches OpenAPI schema

UpdateUser

User update data

UpdateUserRequest

UpdateUserResponse

User

Core user type - matches OpenAPI schema

Verification

Verification token - matches OpenAPI schema

Enums

AuthError

Authentication framework error types.

DatabaseError

HttpMethod

HTTP method enumeration

SameSite

Traits

AuthAccount

Trait representing an account entity (OAuth provider linking).

AuthInvitation

Trait representing an invitation entity.

AuthMember

Trait representing an organization member entity.

AuthOrganization

Trait representing an organization entity.

AuthPasskey

Trait representing a passkey entity.

AuthPlugin

Plugin trait that all authentication plugins must implement.

AuthSession

Trait representing a session entity.

AuthTwoFactor

Trait representing a two-factor authentication entity.

AuthUser

Trait representing a user entity.

AuthVerification

Trait representing a verification token entity.

CacheAdapter

Cache adapter trait for session caching

DatabaseAdapter

Database adapter trait for persistence.

DatabaseHooks

Database lifecycle hooks for intercepting operations.

EmailProvider

Trait for sending emails. Implement this to integrate with your email service (SMTP, SendGrid, SES, etc.).

Middleware

Middleware trait for request/response processing.

Type Aliases

AuthResult