middleware

Documentation

Index

• Variables
• func AddContentType(s string) buffalo.MiddlewareFunc
• func CSRF(next buffalo.Handler) buffalo.Handler
• func NewRelic(key, name string) buffalo.MiddlewareFunc
• func SetContentType(s string) buffalo.MiddlewareFunc

Variables

var (
	// ErrNoReferer is returned when a HTTPS request provides an empty Referer
	// header.
	ErrNoReferer = errors.New("referer not supplied")
	// ErrBadReferer is returned when the scheme & host in the URL do not match
	// the supplied Referer header.
	ErrBadReferer = errors.New("referer invalid")
	// ErrNoCSRFToken is returned if no CSRF token is supplied in the request.
	ErrNoCSRFToken = errors.New("CSRF token not found in request")
	// ErrBadCSRFToken is returned if the CSRF token in the request does not match
	// the token in the session, or is otherwise malformed.
	ErrBadCSRFToken = errors.New("CSRF token invalid")
)

var PopTransaction = func(db *pop.Connection) buffalo.MiddlewareFunc {
	return func(h buffalo.Handler) buffalo.Handler {
		return func(c buffalo.Context) error {

			return db.Transaction(func(tx *pop.Connection) error {
				start := tx.Elapsed
				defer func() {
					finished := tx.Elapsed
					elapsed := time.Duration(finished - start)
					c.LogField("db", elapsed)
				}()
				c.Set("tx", tx)
				return h(c)
			})
		}
	}
}

PopTransaction is a piece of Buffalo middleware that wraps each request in a transaction that will automatically get committed or rolledback. It will also add a field to the log, "db", that shows the total duration spent during the request making database calls.

Functions

func AddContentType

func AddContentType(s string) buffalo.MiddlewareFunc

AddContentType will add a secondary content type to a request. If no content type is sent by the client the default will be set, otherwise the client's content type will be used.

func CSRF

func CSRF(next buffalo.Handler) buffalo.Handler

CSRF enable CSRF protection on routes using this middleware. This middleware is adapted from gorilla/csrf

func NewRelic

func NewRelic(key, name string) buffalo.MiddlewareFunc

NewRelic returns a piece of buffalo.Middleware that can be used to report requests to NewRelic. You must pass in your NewRelic key and a name for your application. If the key passed in is blank, i.e. loading from an ENV, then the middleware is skipped and the chain continues on like normal. Useful for development.

func SetContentType

func SetContentType(s string) buffalo.MiddlewareFunc

SetContentType on the request to desired type. This will override any content type sent by the client.