Better Auth Has a Free API That Most Developers Dont Know About

#authentication #typescript #security #webdev

Better Auth is a modern authentication library for TypeScript that works with any framework. It provides email/password, OAuth, 2FA, and session management out of the box.

Setup

import { betterAuth } from "better-auth";

export const auth = betterAuth({
  database: { provider: "pg", url: process.env.DATABASE_URL },
  emailAndPassword: { enabled: true },
  socialProviders: {
    google: { clientId: process.env.GOOGLE_ID, clientSecret: process.env.GOOGLE_SECRET },
    github: { clientId: process.env.GITHUB_ID, clientSecret: process.env.GITHUB_SECRET }
  },
  session: { expiresIn: 60 * 60 * 24 * 7 } // 7 days
});

Client

import { createAuthClient } from "better-auth/react";

export const authClient = createAuthClient({ baseURL: "http://localhost:3000" });

// Sign up
await authClient.signUp.email({ email: "user@example.com", password: "secret", name: "John" });

// Sign in
await authClient.signIn.email({ email: "user@example.com", password: "secret" });

// OAuth
await authClient.signIn.social({ provider: "google" });

// Get session
const session = await authClient.getSession();

Two-Factor Auth

import { twoFactor } from "better-auth/plugins";

export const auth = betterAuth({
  plugins: [twoFactor({ issuer: "MyApp" })]
});

// Client: enable 2FA
const { data } = await authClient.twoFactor.enable();
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