v6.0.0

Added

• express 4.x as a peer dependency.
• Better Typescript support (the library was rewritten in Typescript).
• Export the package as both ESM and CJS.
• Publish the built package (.tgz file) on GitHub releases as well as the npm registry.
• Issue and PR templates.
• A contributing guide.
• A changelog.

Changed

• Rename the draft_polli_ratelimit_headers option to standardHeaders.
• Rename the headers option to legacyHeaders.
• Retry-After header is now sent if either legacyHeaders or standardHeaders is set.
• Allow keyGenerator to be an async function/return a promise.
• Change the way custom stores are defined.
  • Add the init method for stores to set themselves up using options passed to the middleware.
  • Rename the incr method to increment.
  • Allow the increment, decrement, resetKey and resetAll methods to return a promise.
  • Old stores will automatically be promisified and used.
• The package can now only be used with NodeJS version 12.9.0 or greater.
• The onLimitReached configuration option is now deprecated. Replace it with a custom handler that checks the number of hits.

Removed

• Remove the deprecated limiter.resetIp method (use the limiter.resetKey method instead).
• Remove the deprecated options delayMs, delayAfter (the delay functionality was moved to the express-slow-down package) and global (use a key generator that returns a constant value).