ApplicationJSON sets the content-type headr to JSON.

Middleware that catches panics, and: - logs them - optionally reports them to sentry - pass in "" if you don't want this - sends a 500 response You can also use ThrowError() to raise an error that this middleware will catch, for example if you want an error to be reported to sentry */.

CORS is a middleware to handle CORS requests.

GzipHandler is used to compress data.

XRequestID is a goji middleware to track requestID.

An error that encapsulates an HTTP status code and message.