Configure Auth0 Authentication

How <Auth0 /> Works Internally

The <Auth0 /> component (from @webiny/auth0) is a defineExtension that:

• Sets Lambda env vars: AUTH0_ISSUER, AUTH0_CLIENT_ID
• Sets Admin app env vars: REACT_APP_IDP_TYPE=auth0, REACT_APP_AUTH0_ISSUER, REACT_APP_AUTH0_CLIENT_ID
• Registers the internal Auth0IdpFeature API extension (OIDC token verification)
• Registers your custom API config extension (identity mapping)
• Registers the Admin Auth0 login screen extension

Reference Tables

Auth0IdpConfig.Interface

Auth0Identity (Return Type of getIdentity)

<Auth0 /> Component Props

Environment Variables

Full Examples

Example 1: Basic Auth0 Configuration

Step 0: Install the @webiny/auth0 dependency

@webiny/auth0 is an optional dependency. Add it to package.json using the same version as the webiny dependency, then install:

# Check the webiny version in package.json, then add @webiny/auth0 with the same version
# For example, if "webiny": "^0.0.0-unstable.xxx":
yarn add @webiny/auth0@^0.0.0-unstable.xxx

Important: After adding the dependency, tell the user to run yarn to install it. Do NOT run yarn automatically — let the user do it.

Step 1: Create the API config

Create extensions/auth0/MyAuth0Config.ts:

import { Auth0IdpConfig } from "@webiny/auth0";

class MyIdpConfig implements Auth0IdpConfig.Interface {
  getIdentity(token: Auth0IdpConfig.JwtPayload) {
    return {
      id: String(token["sub"]),
      displayName: token["name"],
      roles: ["full-access"],
      profile: {
        firstName: token["given_name"],
        lastName: token["family_name"],
        email: token["email"]
      },
      context: {
        canAccessTenant: true,
        defaultTenant: "root"
      }
    };
  }
}

const MyAuth0Config = Auth0IdpConfig.createImplementation({
  implementation: MyIdpConfig,
  dependencies: []
});

export default MyAuth0Config;

Step 2: Create the extension component

Create extensions/auth0/MyAuth0Extension.tsx:

import React from "react";
import { Auth0 } from "@webiny/auth0";

export const MyAuth0Extension = () => {
  return (
    <Auth0
      issuer={String(process.env.AUTH0_ISSUER)}
      clientId={String(process.env.AUTH0_CLIENT_ID)}
      apiConfig={import.meta.dirname + "/MyAuth0Config.ts"}
    />
  );
};

Step 3: Register in webiny.config.tsx

import React from "react";
import { MyAuth0Extension } from "./extensions/auth0/MyAuth0Extension.js";

export const Extensions = () => {
  return (
    <>
      {/* Replace <Cognito /> with Auth0 */}
      <MyAuth0Extension />

      {/* ... other extensions ... */}
    </>
  );
};

Step 4: Set environment variables

Add to your .env file (or CI/CD environment):

AUTH0_ISSUER=https://your-tenant.auth0.com/
AUTH0_CLIENT_ID=your-auth0-client-id

Step 5: Deploy

yarn webiny deploy

Example 2: Custom Claim Verification

If your Auth0 setup uses custom claims (e.g., via Auth0 Actions or Rules) that need validation:

import { Auth0IdpConfig } from "@webiny/auth0";

class MyIdpConfig implements Auth0IdpConfig.Interface {
  getIdentity(token: Auth0IdpConfig.JwtPayload) {
    return {
      id: String(token["sub"]),
      displayName: token["name"],
      roles: [token["https://webiny.com/role"]],
      profile: {
        firstName: token["given_name"],
        lastName: token["family_name"],
        email: token["email"]
      },
      context: {
        canAccessTenant: true,
        defaultTenant: "root"
      }
    };
  }

  verifyTokenClaims(token: Auth0IdpConfig.JwtPayload) {
    // Reject tokens without the required custom claim
    if (!token["https://webiny.com/role"]) {
      throw new Error("Token is missing the 'https://webiny.com/role' claim.");
    }

    // Reject tokens from unauthorized organizations
    if (token["org_id"] && token["org_id"] !== "org_expected") {
      throw new Error("User does not belong to the authorized organization.");
    }
  }
}

const MyAuth0Config = Auth0IdpConfig.createImplementation({
  implementation: MyIdpConfig,
  dependencies: []
});

export default MyAuth0Config;

Example 3: Using DI Dependencies in Config

If your config needs access to other Webiny services (e.g., to look up tenant-specific roles):

import { Auth0IdpConfig } from "@webiny/auth0";
import { TenantContext } from "webiny/api/tenancy";

class MyIdpConfig implements Auth0IdpConfig.Interface {
  constructor(private tenantContext: TenantContext.Interface) {}

  getIdentity(token: Auth0IdpConfig.JwtPayload) {
    const tenant = this.tenantContext.getTenant();

    return {
      id: String(token["sub"]),
      displayName: token["name"],
      roles: [token["https://webiny.com/role"]],
      profile: {
        firstName: token["given_name"],
        lastName: token["family_name"],
        email: token["email"]
      },
      context: {
        canAccessTenant: true,
        defaultTenant: tenant?.id ?? "root"
      }
    };
  }
}

const MyAuth0Config = Auth0IdpConfig.createImplementation({
  implementation: MyIdpConfig,
  dependencies: [TenantContext]
});

export default MyAuth0Config;

Quick Reference

Imports

// API config
import { Auth0IdpConfig } from "@webiny/auth0";

// Extension component
import { Auth0 } from "@webiny/auth0";

Key Interfaces

File Structure

extensions/auth0/
├── MyAuth0Config.ts        # API config (JWT claim mapping)
└── MyAuth0Extension.tsx    # Extension component (Auth0 setup)

Registration

In webiny.config.tsx, replace <Cognito /> with <MyAuth0Extension />.

Deploy

yarn webiny deploy        # Deploy all (Core + API + Admin)

Both API and Admin need to be redeployed since Auth0 affects both the backend (token verification, identity mapping) and the frontend (login screen).

Related Skills

• webiny-configure-okta — Alternative IDP: configuring Okta authentication
• webiny-dependency-injection — The universal DI pattern used by Auth0IdpConfig.createImplementation()
• webiny-project-structure — How webiny.config.tsx and extensions are organized
• webiny-local-development — Deploying and testing your Auth0 configuration