Route parameters and req.params

7. Route parameters and req.params

Define dynamic route segments and access their values via req.params.

1 min read Chapter 7 of 48

JavaScript

Route parameters are named placeholders in a URL that Express fills and exposes on req.params.

"I want one handler to work for many similar URLs, like /users/123 and /users/456."

Route parameters are dynamic URL segments defined with a colon (e.g., /users/:id) and their values are accessible as strings on req.params (e.g., req.params.id).

"I want one handler to work for many similar URLs, like /users/123 and /users/456."

Route parameters are dynamic URL segments defined with a colon (e.g., /users/:id) and their values are accessible as strings on req.params (e.g., req.params.id).