encoder

Documentation

Index

• type Encoder
  • func Get(format string, r *http.Request) Encoder
• type WrapEncoderFunc
  • func (f WrapEncoderFunc) Encode(m image.Image, w http.ResponseWriter) error

Types

type Encoder

type Encoder interface {
	Encode(m image.Image, w http.ResponseWriter) error
}

Encoder describes any type that can encode with the image and response writer.

func Get

func Get(format string, r *http.Request) Encoder

Get parses the `format` query variable and uses it to see if the user has specified the output format, otherwise, it tries to see if it can encode the image with the source format, otherwise, it just encodes it as "jpeg".

type WrapEncoderFunc

type WrapEncoderFunc func(m image.Image, w http.ResponseWriter) error

WrapEncoderFunc type is an adapter to allow the use of ordinary functions as image Encoders. If f is a function with the appropriate signature, WrapEncoderFunc(f) is a Encoder that calls f.

func (WrapEncoderFunc) Encode

func (f WrapEncoderFunc) Encode(m image.Image, w http.ResponseWriter) error

Encode calls f(m, w).