f98b339b77
* support bind http header param #1956 update #1956 ``` package main import ( "fmt" "github.com/gin-gonic/gin" ) type testHeader struct { Rate int `header:"Rate"` Domain string `header:"Domain"` } func main() { r := gin.Default() r.GET("/", func(c *gin.Context) { h := testHeader{} if err := c.ShouldBindHeader(&h); err != nil { c.JSON(200, err) } fmt.Printf("%#v\n", h) c.JSON(200, gin.H{"Rate": h.Rate, "Domain": h.Domain}) }) r.Run() // client // curl -H "rate:300" -H "domain:music" 127.0.0.1:8080/ // output // {"Domain":"music","Rate":300} } ``` * add unit test * Modify the code to get the http header When the http header is obtained in the standard library, the key value will be modified by the CanonicalMIMEHeaderKey function, and finally the value of the http header will be obtained from the map. As follows. ```go func (h MIMEHeader) Get(key string) string { // ... v := h[CanonicalMIMEHeaderKey(key)] // ... } ``` This pr also follows this modification * Thanks to vkd for suggestions, modifying code * Increase test coverage env GOPATH=`pwd` go test github.com/gin-gonic/gin/binding -coverprofile=cover.prof ok github.com/gin-gonic/gin/binding 0.015s coverage: 100.0% of statements * Rollback check code * add use case to README.md
35 lines
739 B
Go
35 lines
739 B
Go
package binding
|
|
|
|
import (
|
|
"net/http"
|
|
"net/textproto"
|
|
"reflect"
|
|
)
|
|
|
|
type headerBinding struct{}
|
|
|
|
func (headerBinding) Name() string {
|
|
return "header"
|
|
}
|
|
|
|
func (headerBinding) Bind(req *http.Request, obj interface{}) error {
|
|
|
|
if err := mapHeader(obj, req.Header); err != nil {
|
|
return err
|
|
}
|
|
|
|
return validate(obj)
|
|
}
|
|
|
|
func mapHeader(ptr interface{}, h map[string][]string) error {
|
|
return mappingByPtr(ptr, headerSource(h), "header")
|
|
}
|
|
|
|
type headerSource map[string][]string
|
|
|
|
var _ setter = headerSource(nil)
|
|
|
|
func (hs headerSource) TrySet(value reflect.Value, field reflect.StructField, tagValue string, opt setOptions) (isSetted bool, err error) {
|
|
return setByForm(value, field, hs, textproto.CanonicalMIMEHeaderKey(tagValue), opt)
|
|
}
|