Nuxt-local-auth NPM

Nuxt Local Auth

My new Nuxt module for doing amazing things.

✨ Release Notes

Features:

📃 REST requests
🔑 Login, Registration, Logout, session receipt, refresh token
🔧 Flexible system of page protection settings
⚡ Server shutdown detection system

Quick Setup

Add nuxt-local-auth dependency to your project

# Using pnpm
pnpm add -D nuxt-local-auth

# Using yarn
yarn add --dev nuxt-local-auth

# Using npm
npm install --save-dev nuxt-local-auth

Add nuxt-local-auth to the modules section of nuxt.config.ts

export default defineNuxtConfig({
  modules: [
    'nuxt-local-auth'
  ]
});

That's it! You can now use Nuxt Local Auth in your Nuxt app ✨

Configuration

Default settings of module. See all interfaces here.

export default defineNuxtConfig({
  localAuth: {
    origin: '',
    sessions: {
      refreshEvery: undefined,
      cookiePrefix: 'localAuth',
    },
    token: {
      lifetime: 86400,
      path: 'token',
      type: 'Bearer',
      queryKey: undefined,
    },
    refreshToken: {
      enabled: false,
      path: 'refresh',
      bodyKey: 'refresh',
      queryKey: 'refresh'
    },
    endpoints: {
      signIn: { path: 'auth/signIn', method: 'POST' },
      getMe: { path: 'users/me', method: 'GET' },
      refreshToken: { path: 'auth/refresh', method: 'POST' },
      signUp: undefined,
      signOut: undefined
    },
    pages: {
      auth: '/login',
      defaultRedirect: '/',
      serverIsDown: undefined,
      protectAllPages: false,
    }
  }
});

Example

Use useLocalAuth to get auth context methods. Return interface see here

const auth = useLocalAuth();

type SignInResponse = {
    accessToken: string;
};

// You can use type response for all auth methods
auth.signIn<SignInResponse>({
  login: 'admin',
  password: 'admin'
}).then(res => {
    console.log(res.accessToken);
}).catch(e => {
    console.error(e);
});

🌀 Refresh token

// nuxt.config.ts
export default defineNuxtConfig({
  localAuth: {
    refreshToken: {
      enabled: true,
      bodyKey: 'refresh'
    },
    endpoints: {
      refreshToken: { path: 'auth/refresh/', method: 'POST' },
    }
  }
});

Since to update the token, you need to execute the {origin}/{endpoints/refreshToken/path} request by passing the token in its body, you need to specify under which key the token will be transferred. To do this, there is a bodyKey parameter in the refreshToken section

After enabling refresh tokens, the refreshToken and refreshTokenWithCheck methods will stop giving an error.

const { refreshToken, refreshTokenWithCheck } = useLocalAuth();

// Forced update token
await refreshToken();

// Check whether the token is rotten or not, and then update
await refreshTokenWithCheck();

How does the refreshTokenWithCheck function understand when to update the token? It's simple! In the token section, you can find the lifetime parameter, which, by default, has a value of 86400 seconds, which is equal to one day, after logging in. You can change this value to set the token lifetime, or specify the path to the value from the authorization response that the server will return.

Example:

Server response

{
  "accessToken": "...",
  "refreshToken": "...",
  "exp": 123123
}

You need to set the value lifetime: 'exp'

🖇️ Auth with url query tokens

To use authorization via the url string, you need to set the value of this key in the token section, the queryKey key. After that, the mechanism will start working. It is also possible to read the refresh token from the query string, the key is set as refresh by default, but it will not work without enabling the main token.

// nuxt.config.ts
export default defineNuxtConfig({
  localAuth: {
    token: {
      queryKey: 'token'
    },
    refreshToken: {
      enabled: true,
      queryKey: 'refresh'
    },
    pages: {
      auth: 'login'
    }
  }
});

The query string will look like this: {clientOrigin}/{pages/auth}?{token/queryKey}=...&{refreshToken/queryKey}=...

Work example: http://localhost:3000/login?token=...&refresh=...

As a result, an automatic login will be performed. If the refresh token is not passed, the system will also be able to start, but all methods of updating the token will stop working

🔒 Page Protecting

Page protection can be organized in two ways: global protection and configuration of a specific page, via definePageMeta

Global Protecting

// nuxt.config.ts
export default defineNuxtConfig({
  localAuth: {
    pages: {
      auth: 'login',
      protectAllPages: true
    }
  }
});

definePageMeta

<!--    pages/login.vue-->
<script lang="ts" setup>
// Example #1 - disable middleware
definePageMeta({
    localAuth: false
});
// Example #2 - enable middleware
definePageMeta({
    localAuth: true
});
// Example #3 - authorized users only
definePageMeta({
    localAuth: {
        authorizedOnly: true
    }
});
// Example #4 - unauthorized users only
definePageMeta({
    localAuth: {
        unauthorizedOnly: true
    }
});
// Example #5 - closed page from all 😁
definePageMeta({
    localAuth: {
        authorizedOnly: true,
        unauthorizedOnly: true
    }
});
</script>

🔥 Server is disabled

The module has a mechanism for catching long responses, or domain unavailability. In such cases, the module will redirect the user to the error page, which can be set in the pages serverIsDown section.

// nuxt.config.ts
export default defineNuxtConfig({
  localAuth: {
    pages: {
      serverIsDown: '/error'
    }
  }
});

If the server returns an error code, a logout will be performed, and the user will be redirected to the page specified in auth. After logging in, the user will be directed to defaultRedirect, which can be changed for a specific case in the config of the method itself, passing the path in the redirectTo key.

Interfaces

⚡ Module config interfaces

interface ModuleOptions {
  /* Path to server. Default: ''
  * Example: 'http://localhost:8000/api/v1' - remote server
  * Example: 'api' - local nuxt server
  * */
  origin: string;
  /* Config Cookie settings and additional options */
  sessions: ModuleOptionsSession;
  /* Main token config */
  token: ModuleOptionsToken;
  /* Refresh token config */
  refreshToken: ModuleOptionsRefreshToken;
  /* Config endpoints to server routes */
  endpoints: ModuleOptionsEndpoints;
  /* Pages redirecting config */
  pages: ModuleOptionsPages;
}

interface ModuleOptionsSession {
  /* Enabled refresh user data every N ms. Default: undefined
  * Example: one getMe request in 5 seconds. value > 5000
  * Example: disable refresh. value > undefined
  * */
  refreshEvery?: number;
  /* Cookie prefix in app storage. Default: localAuth
  * Example: localAuth:token -> {token}
  * */
  cookiePrefix?: string;
}

interface ModuleOptionsToken {
  /* Lifetime token in seconds. Default: 86400
  * number: value in seconds
  * * Example: 1 day > value: 86400
  * string: path to auth expire key
  * * Example #1: { expireIn: 86400 } > value: 'expireIn'
  * * Example #2: { data: { expireIn: 86400 } } > value: 'data/expireIn'
  * */
  lifetime?: number | string;
  /* Path to token data. Default: 'token'
  * Example #1: { token: '...' } > value: 'token'
  * Example #2: { data: { accessToken: '...' } } > value: 'data/accessToken'
  * */
  path: string;
  /* Token type. Default: 'Bearer' */
  type?: string;
  /* Reading the token from the query parameter of the url string. Default: undefined
  * Example #1: https://.../{pages/auth}?token=.... value > 'token'
  * Example #2: reading is disabled. value > undefined
  * */
  queryKey?: string;
}

interface ModuleOptionsRefreshToken {
  /* Enabled refresh sessions in app. Default: false */
  enabled: boolean;
  /* Path to refresh token data. Default: 'refresh'
  * Example #1: { refresh: '...' } > value: 'refresh'
  * Example #2: { data: { refreshToken: '...' } } > value: 'data/refreshToken'
  * */
  path?: string;
  /* Name of key token in body request. Default: 'refresh'
  * Example: { refresh '...' } > value: 'refresh'
  * */
  bodyKey?: string;
  /* Reading the token from the query parameter of the url string. Default: 'refresh'
  * Example #1: https://.../{pages/auth}?refresh=.... value > 'refresh'
  * Example #2: reading is disabled. value > undefined
  * */
  queryKey?: string;
}

interface ModuleOptionsEndpoints {
  /* Auth config. Default:
  * path: 'auth/signIn'
  * method: 'POST'
  * */
  signIn: ModuleOptionsEndpointConfig;
  /* Get authorized user info config. Default:
  * path: 'users/me'
  * method: 'GET'
  * */
  getMe: ModuleOptionsEndpointConfig;
  /* Refresh token config. Default:
  * path: 'auth/refresh
  * method: 'POST'
  * */
  refreshToken?: ModuleOptionsEndpointConfig;
  /* Registration user config. Default: undefined -> disabled */
  signUp?: ModuleOptionsEndpointConfig;
  /* Logout config. Default: undefined -> disabled */
  signOut?: ModuleOptionsEndpointConfig;
}

interface ModuleOptionsPages {
  /* Page for authorization in the system. Default: '/login' */
  auth?: string;
  /* The standard page where to redirect the user after logging in. Default: '/' */
  defaultRedirect?: string;
  /* A page for catching a server shutdown when it is impossible to
  * get session data due to a timeout. Default: undefined
  * Example #1: redirect to '/error'. value > '/error/
  * Example #2: redirect is disabled. value > undefined
  * */
  serverIsDown?: string;
  /* Protecting all pages from guests. Default: false */
  protectAllPages?: boolean
}

interface ModuleOptionsEndpointConfig {
  path: string;
  method: 'POST' | 'GET';
}

⚙️ `useLocalAuth` return interfaces

interface UseLocalAuthReturn extends UseLocalAuthReturnData, UseLocalAuthReturnMethods {}

interface UseLocalAuthReturnData {
  data: ComputedRef<UseLocalAuthCredentials>;
  meta: Ref<UseLocalAuthSession>;
  token: ComputedRef<string | null>;
}

interface UseLocalAuthReturnMethods {
  signIn<T extends UseLocalAuthResponse = {}>(data: UseLocalAuthData, config?: UseLocalAuthConfig): Promise<T>;
  signUp<T extends UseLocalAuthResponse = {}>(data: UseLocalAuthData, config?: UseLocalAuthConfig): Promise<T>;
  signOut<T extends UseLocalAuthResponse = {}>(config?: UseLocalAuthConfig): Promise<T>;
  getMe<T extends UseLocalAuthResponse = {}>(): Promise<T>;
  refreshToken<T extends UseLocalAuthResponse = {}>(): Promise<T>;
  refreshTokenWithCheck<T extends UseLocalAuthResponse = {}>(): Promise<T | null>;
  checkAndSaveQueryAuth(): Promise<void>;
}

🔥 Another types

type UseLocalAuthData = {
  [name: string]: string;
};

type UseLocalAuthResponse = {
  [name: string]: any;
};

type UseLocalAuthCredentials = {
  [name: string]: any;
};

type UseLocalAuthConfig = {
  redirectTo: string;
};

type UseLocalAuthStatus =
  | 'authorized'
  | 'unauthorized'
  | 'unknown'
  | 'timeout';

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