nf/ctx.go
2024-01-11 18:16:41 +08:00

97 lines
1.8 KiB
Go

package nf
import (
"encoding/json"
"fmt"
"net/http"
)
type Map map[string]interface{}
type Ctx struct {
// origin objects
Writer http.ResponseWriter
Request *http.Request
// request info
Path string
Method string
// response info
StatusCode int
Params map[string]string
index int
handlers []HandlerFunc
}
func newContext(writer http.ResponseWriter, request *http.Request) *Ctx {
return &Ctx{
Writer: writer,
Request: request,
Path: request.URL.Path,
Method: request.Method,
index: -1,
}
}
func (c *Ctx) Form(key string) string {
return c.Request.FormValue(key)
}
func (c *Ctx) Query(key string) string {
return c.Request.URL.Query().Get(key)
}
func (c *Ctx) Status(code int) {
c.StatusCode = code
c.Writer.WriteHeader(code)
}
func (c *Ctx) SetHeader(key string, value string) {
c.Writer.Header().Set(key, value)
}
func (c *Ctx) SendString(data string) error {
c.SetHeader("Content-Type", "text/plain")
_, err := c.Write([]byte(data))
return err
}
func (c *Ctx) Writef(format string, values ...interface{}) (int, error) {
c.SetHeader("Content-Type", "text/plain")
return c.Writer.Write([]byte(fmt.Sprintf(format, values...)))
}
func (c *Ctx) JSON(data interface{}) error {
c.SetHeader("Content-Type", "application/json")
encoder := json.NewEncoder(c.Writer)
if err := encoder.Encode(data); err != nil {
return err
}
return nil
}
func (c *Ctx) Write(data []byte) (int, error) {
return c.Writer.Write(data)
}
func (c *Ctx) HTML(html string) error {
c.SetHeader("Content-Type", "text/html")
_, err := c.Writer.Write([]byte(html))
return err
}
func (c *Ctx) Next() error {
c.index++
s := len(c.handlers)
for ; c.index < s; c.index++ {
if err := c.handlers[c.index](c); err != nil {
return err
}
}
return nil
}