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Upgrade 5.x -> 6.x

aka "The return of CJS, kinda"

Version 6.x of Middy no longer supports Node.js versions 18.x. You are highly encouraged to move to Node.js 22.x.

Notable changes​

Core​

  • Add in mechanise to handle undefined early responses. You can now set request.earlyResponse and it will respond with an undefined response. The existing method will continue to work as expected.

Util​

No change

Middleware​

appconfig​

No change

cloudwatch-metrics​

No change

do-not-wait-for-empty-event-loop​

No change

error-logger​

No change

event-normalizer​

No change

http-content-encoding​

  • Add in Vary support (#1253) Breaking Change
  • Add in support to skip encoding when Cache-Control: no-transform is used (#1252) breaking Change

http-content-negotiation​

No change

http-cors​

  • The default origin is now undefined, defaulting to a secure state. Breaking Change
  • Remove options (requestHeaders, requestMethods) to set request headers that are unused by the browser.
  • Vary: origin now applied when more than one possible origin.

http-error-handler​

No change

http-event-normalizer​

No change

http-header-normalizer​

  • rawHeaders is no longer attached to event. Breaking Change

http-json-body-parser​

No change

http-multipart-body-parser​

No change

http-partial-response​

No change

http-response-serializer​

  • deprecate use of event.requiredContentType. Breaking Change

http-router​

No change

http-security-headers​

  • Add in support for Content-Security-Policy-Report-Only (#1248)
  • Add in support for Reporting-Endpoints (#1249)

http-urlencode-body-parser​

  • replace use of qs with node:querystring. Complex nested object are no longer supported. Breaking Change

http-urlencode-path-parser​

No change

input-output-logger​

No change

rds-signer​

No change

s3-object-response​

No change

secrets-manager​

No change

service-discovery​

No change

sqs-partial-batch-failure​

No change

ssm​

No change

sts​

No change

validator​

No change

warmup​

No change

ws-json-body-parser​

No change

ws-response​

No change

ws-router​

No change

Notes​

None