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better-auth

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The most comprehensive authentication framework for TypeScript.

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import { PrettifyDeep, UnionToIntersection } from "../types/helper.mjs"; import { InferActions, InferClientAPI, InferErrorCodes, IsSignal, SessionQueryParams } from "./types.mjs"; import { getClientConfig } from "./config.mjs"; import { BetterAuthClientOptions } from "@better-auth/core"; import { BASE_ERROR_CODES } from "@better-auth/core/error"; import { Atom } from "nanostores"; import { BetterFetchError, BetterFetchResponse } from "@better-fetch/fetch"; //#region src/client/vanilla.d.ts type InferResolvedHooks<O extends BetterAuthClientOptions> = O extends { plugins: Array<infer Plugin>; } ? UnionToIntersection<Plugin extends { getAtoms?: infer GetAtoms; } ? GetAtoms extends ((fetch: any) => infer Atoms) ? Atoms extends Record<string, any> ? { [key in keyof Atoms as IsSignal<key> extends true ? never : key extends string ? `use${Capitalize<key>}` : never]: Atoms[key]; } : {} : {} : {}> : {}; type ClientConfig = ReturnType<typeof getClientConfig>; type ClientSession<Option extends BetterAuthClientOptions> = InferClientAPI<Option> extends { getSession: () => Promise<infer Res>; } ? Res extends BetterFetchResponse<infer S> ? S : Res : never; /** * Client returned by `createAuthClient`. */ type AuthClient<Option extends BetterAuthClientOptions> = UnionToIntersection<InferResolvedHooks<Option>> & InferClientAPI<Option> & InferActions<Option> & { useSession: Atom<{ data: ClientSession<Option>; error: BetterFetchError | null; isPending: boolean; isRefetching: boolean; refetch: (queryParams?: { query?: SessionQueryParams; } | undefined) => Promise<void>; }>; $fetch: ClientConfig["$fetch"]; $store: ClientConfig["$store"]; $Infer: { Session: NonNullable<ClientSession<Option>>; }; $ERROR_CODES: PrettifyDeep<InferErrorCodes<Option> & typeof BASE_ERROR_CODES>; }; declare function createAuthClient<Option extends BetterAuthClientOptions>(options?: Option | undefined): AuthClient<Option>; //#endregion export { AuthClient, createAuthClient };