The Ctx struct represents the Context that contains the HTTP request and response. It has methods for the request query string, parameters, body, HTTP headers and so on.

Some interesting methods:

• func (c *Ctx) App() *App
• func (c *Ctx) Body() []byte
• func (c *Ctx) BodyParser(out interface{}) error
• func (c *Ctx) Cookie(cookie *Cookie)
• func (c *Ctx) Download(file string, filename ...string) error
• func (c *Ctx) JSON(data interface{}) error
• func (c *Ctx) Locals(key string, value ...interface{}) interface{}

A complete list of all the methods this struct implements can be found by clicking here.