414 URI Too Long

414

URI Too Long

Example HTTP Response

HTTP Response

HTTP/1.1 414 URI Too Long

Common Causes

Too many query parameters
Accidentally recursive redirects
Encoded data in URL instead of body

Technical Details

What does this mean?

That URL is a novel! Like trying to write your life story on a sticky note. Keep it short and sweet!

Technical Definition

The URI requested by the client is longer than the server is willing to interpret.

RFC Says

"The 414 (URI Too Long) status code indicates that the server is refusing to service the request because the request-target is longer than the server is willing to interpret. This rare condition is only likely to occur when a client has improperly converted a POST request to a GET request with long query information."

Plain English:

414 means 'Your URL is too long.' This usually happens when developers try to pass too much data in query parameters. The typical limit is around 2,000-8,000 characters depending on the server.

Common Misinterpretation

If you're hitting this error, you're probably doing something wrong architecturally. Use POST requests with a request body instead of GET with massive query strings. Don't try to pass large datasets or complex objects in the URL.

View RFC Documentation

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(414).json({
    error: 'URI Too Long',
    message: 'Your error message here'
  });
});

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

http.createServer((req, res) => {
  res.writeHead(414, { 'Content-Type': 'application/json' });
  res.end(JSON.stringify({
    error: 'URI Too Long',
    message: 'Your error message here'
  }));
}).listen(3000);

414 URI Too Long FAQ

What causes a 414 URI Too Long error?

Too many query parameters. Accidentally recursive redirects. Encoded data in URL instead of body.

// Express.js app.get('/example', (req, res) => { res.status(414).json({ error: 'URI Too Long', message: 'Your error message here' }); }); // Native HTTP const http = require('http'); http.createServer((req, res) => { res.writeHead(414, { 'Content-Type': 'application/json' }); res.end(JSON.stringify({ error: 'URI Too Long', message: 'Your error message here' })); }).listen(3000);