Secure Your APIs with Auth0 Token Validation in n8n
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Effortlessly secure your API endpoints by validating Auth0 authorization tokens directly within your n8n workflows. This template provides two robust methods for token verification, ensuring only authenticated requests proceed.
About This Workflow
This n8n template empowers you to implement robust security for your API integrations by validating Auth0 authorization tokens. Standard JWT authentication in n8n struggles with Auth0's RS256 algorithm and private key access. This solution leverages the code node to integrate with external libraries, enabling secure token verification. You can choose between two dynamic approaches: utilizing Auth0's JWKS URI for dynamic key fetching or directly embedding your application's public signing certificate for validation. Both methods ensure that only valid, authenticated requests are processed, enhancing the security posture of your automated workflows.
Key Features
- Dual Validation Methods: Choose between JWKS URI or Public Signing Certificate for Auth0 token verification.
- RS256 Algorithm Support: Handles Auth0's standard RS256 token signing algorithm.
- External Library Integration: Utilizes powerful Node.js libraries for secure JWT validation.
- Clear Instructions: Detailed sticky notes guide you through configuration and setup.
- Automated Error Handling: Gracefully handles unauthorized requests with 401 responses.
How To Use
- Understand the Challenge: Auth0 uses RS256, which requires specific handling in n8n. This template overcomes limitations of standard JWT nodes.
- Choose Your Validation Method:
- Using JWKS URI: Requires self-hosted n8n. Install
jwk-rsa(npm i -g jwk-rsa) and setNODE_FUNCTION_ALLOW_EXTERNAL=*environment variable. Update the 'Using JWK-RSA' node with your Auth0 JWKS URI, Issuer, and Audience. - Using Signing Cert: Requires self-hosted n8n and
NODE_FUNCTION_ALLOW_EXTERNAL=*. Edit the 'Using Public Cert' node to paste your Auth0 Public Signing Cert, Issuer, and Audience.
- Using JWKS URI: Requires self-hosted n8n. Install
- Configure Webhook: Set up your n8n webhook node to receive incoming requests.
- Connect Nodes: Link your webhook node to either the 'Using JWK-RSA' or 'Using Public Cert' node, based on your chosen method.
- Handle Responses: Connect the output of the validation nodes to 'Continue with Request' and then to a '200 OK' response node for valid tokens. If validation fails, connect the error path to a '401 Unauthorized' response node.
Apps Used
Workflow JSON
{
"id": "986e1781-6a9f-4c40-a4c6-999d48cfcabf",
"name": "Secure Your APIs with Auth0 Token Validation in n8n",
"nodes": 26,
"category": "DevOps",
"status": "active",
"version": "1.0.0"
}Note: This is a sample preview. The full workflow JSON contains node configurations, credentials placeholders, and execution logic.
Get This Workflow
ID: 986e1781-6a9f...
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