Express utility functions
The pillarjs GitHub organization contains a number of modules for utility functions that may be generally useful.
| Utility modules | Description |
|---|---|
| cookies | Get and set HTTP(S) cookies that can be signed to prevent tampering, using Keygrip. Can be used with the Node.js HTTP library or as Express middleware. |
| csrf | Contains the logic behind CSRF token creation and verification. Use this module to create custom CSRF middleware. |
| finalhandler | Function to invoke as the final step to respond to HTTP request. |
| parseurl | Parse a URL with caching. |
| path-to-regexp | Turn an Express-style path string such as “/user/:name` into a regular expression. |
| resolve-path | Resolves a relative path against a root path with validation. |
| router | Simple middleware-style router. |
| send | Library for streaming files as a HTTP response, with support for partial responses (ranges), conditional-GET negotiation, and granular events. |
For additional low-level HTTP-related modules, see jshttp.