561 Unauthorized

561

Unauthorized

Example HTTP Response

HTTP Response

HTTP/1.1 561 Unauthorized
Content-Type: application/json
Connection: close

{"message": "Unauthorized"}

Common Causes

Lambda authorizer function returned deny decision
Invalid or expired authentication token
Missing required authentication headers
Lambda authorizer validation logic rejected request
JWT token validation failed in authorizer
API key validation failed
Custom authentication logic in Lambda denied access
Lambda authorizer timeout or error

Technical Details

What does this mean?

The bouncer said no! Your request made it to AWS's VIP entrance, but the Lambda security guard checked your credentials and decided you're not on the list. Access denied at the door!

Technical Definition

The Lambda authorizer configured for the Application Load Balancer returned an unauthorized response.

Code Snippets

Ready-to-use code for returning this HTTP status in your application:

Node.js

// Express.js
app.get('/example', (req, res) => {
  res.status(561).json({
    error: 'Unauthorized',
    message: 'Your error message here'
  });
});

// Native HTTP
const http = require('http');

http.createServer((req, res) => {
  res.writeHead(561, { 'Content-Type': 'application/json' });
  res.end(JSON.stringify({
    error: 'Unauthorized',
    message: 'Your error message here'
  }));
}).listen(3000);

Related Status Codes

🔐401Unauthorized 🚫403Forbidden 🎫498Invalid Token

561 Unauthorized FAQ

What causes a 561 Unauthorized error?

Lambda authorizer function returned deny decision. Invalid or expired authentication token. Missing required authentication headers. Lambda authorizer validation logic rejected request. JWT token validation failed in authorizer. API key validation failed. Custom authentication logic in Lambda denied access. Lambda authorizer timeout or error.

// Express.js app.get('/example', (req, res) => { res.status(561).json({ error: 'Unauthorized', message: 'Your error message here' }); }); // Native HTTP const http = require('http'); http.createServer((req, res) => { res.writeHead(561, { 'Content-Type': 'application/json' }); res.end(JSON.stringify({ error: 'Unauthorized', message: 'Your error message here' })); }).listen(3000);

561 Unauthorized FAQ

What causes a 561 Unauthorized error?