@mguay/nestjs-better-auth
Version:
Better Auth for NestJS
171 lines (170 loc) • 6.03 kB
TypeScript
import { createParamDecorator } from "@nestjs/common";
import { CustomDecorator } from "@nestjs/common";
import { createAuthMiddleware } from "better-auth/api";
/**
* Marks a route or a controller as public, allowing unauthenticated access.
* When applied, the AuthGuard will skip authentication checks.
*/
declare const Public: () => CustomDecorator<string>;
/**
* Marks a route or a controller as having optional authentication.
* When applied, the AuthGuard will allow the request to proceed
* even if no session is present.
*/
declare const Optional: () => CustomDecorator<string>;
/**
* Parameter decorator that extracts the user session from the request.
* Provides easy access to the authenticated user's session data in controller methods.
*/
declare const Session: ReturnType<typeof createParamDecorator>;
/**
* Represents the context object passed to hooks.
* This type is derived from the parameters of the createAuthMiddleware function.
*/
type AuthHookContext = Parameters<Parameters<typeof createAuthMiddleware>[0]>[0];
/**
* Registers a method to be executed before a specific auth route is processed.
* @param path - The auth route path that triggers this hook (must start with '/')
*/
declare const BeforeHook: (path: `/${string}`) => CustomDecorator<symbol>;
/**
* Registers a method to be executed after a specific auth route is processed.
* @param path - The auth route path that triggers this hook (must start with '/')
*/
declare const AfterHook: (path: `/${string}`) => CustomDecorator<symbol>;
/**
* Class decorator that marks a provider as containing hook methods.
* Must be applied to classes that use BeforeHook or AfterHook decorators.
*/
declare const Hook: () => ClassDecorator;
import { Auth } from "better-auth";
/**
* NestJS service that provides access to the Better Auth instance
* Use generics to support auth instances extended by plugins
*/
declare class AuthService<T extends {
api: T["api"]
} = Auth> {
private readonly auth;
constructor(auth: T);
/**
* Returns the API endpoints provided by the auth instance
*/
get api(): T["api"];
/**
* Returns the complete auth instance
* Access this for plugin-specific functionality
*/
get instance(): T;
}
import { CanActivate, ExecutionContext } from "@nestjs/common";
import { Reflector } from "@nestjs/core";
import { Auth as Auth2 } from "better-auth";
import { getSession } from "better-auth/api";
/**
* Type representing a valid user session after authentication
* Excludes null and undefined values from the session return type
*/
type UserSession = NonNullable<Awaited<ReturnType<ReturnType<typeof getSession>>>>;
declare class AuthGuard implements CanActivate {
private readonly reflector;
private readonly auth;
constructor(reflector: Reflector, auth: Auth2);
/**
* Validates if the current request is authenticated
* Attaches session and user information to the request object
* @param context - The execution context of the current request
* @returns True if the request is authorized to proceed, throws an error otherwise
*/
canActivate(context: ExecutionContext): Promise<boolean>;
}
import { DynamicModule, MiddlewareConsumer, ModuleMetadata, NestModule, OnModuleInit, Provider, Type } from "@nestjs/common";
import { DiscoveryService, HttpAdapterHost, MetadataScanner } from "@nestjs/core";
/**
* Configuration options for the AuthModule
*/
type AuthModuleOptions = {
disableExceptionFilter?: boolean
disableTrustedOriginsCors?: boolean
disableBodyParser?: boolean
};
/**
* Factory for creating Auth instance and module options asynchronously
*/
interface AuthModuleAsyncOptions<T = any> extends Pick<ModuleMetadata, "imports"> {
/**
* Factory function that returns an object with auth instance and optional module options
*/
useFactory: (...args: unknown[]) => Promise<{
auth: T
options?: AuthModuleOptions
}> | {
auth: T
options?: AuthModuleOptions
};
/**
* Providers to inject into the factory function
*/
inject?: (string | symbol | Type<unknown>)[];
/**
* Use an existing provider class
*/
useClass?: Type<{
createAuthOptions(): Promise<{
auth: T
options?: AuthModuleOptions
}> | {
auth: T
options?: AuthModuleOptions
}
}>;
/**
* Use an existing provider
*/
useExisting?: Type<{
createAuthOptions(): Promise<{
auth: T
options?: AuthModuleOptions
}> | {
auth: T
options?: AuthModuleOptions
}
}>;
}
declare class AuthModule implements NestModule, OnModuleInit {
private readonly auth;
private readonly discoveryService;
private readonly metadataScanner;
private readonly adapter;
private readonly options;
private readonly logger;
constructor(auth: any, discoveryService: DiscoveryService, metadataScanner: MetadataScanner, adapter: HttpAdapterHost, options: AuthModuleOptions);
onModuleInit(): void;
configure(consumer: MiddlewareConsumer): void;
private setupHooks;
/**
* Static factory method to create and configure the AuthModule.
* @param auth - The Auth instance to use
* @param options - Configuration options for the module
*/
static forRoot<T = any>(auth: T, options?: AuthModuleOptions): DynamicModule;
/**
* Static factory method to create and configure the AuthModule asynchronously.
* @param options - Async configuration options for the module
*/
static forRootAsync<T = any>(options: AuthModuleAsyncOptions<T>): {
global: boolean
module: typeof AuthModule
imports?: ModuleMetadata["imports"]
providers: Provider[]
exports: (Provider | typeof AuthService)[]
};
private static createAsyncProviders;
private static createExceptionFilterProvider;
}
declare const BEFORE_HOOK_KEY: symbol;
declare const AFTER_HOOK_KEY: symbol;
declare const HOOK_KEY: symbol;
declare const AUTH_INSTANCE_KEY: symbol;
declare const AUTH_MODULE_OPTIONS_KEY: symbol;
export { UserSession, Session, Public, Optional, Hook, HOOK_KEY, BeforeHook, BEFORE_HOOK_KEY, AuthService, AuthModuleAsyncOptions, AuthModule, AuthHookContext, AuthGuard, AfterHook, AUTH_MODULE_OPTIONS_KEY, AUTH_INSTANCE_KEY, AFTER_HOOK_KEY };