Mime header
Motivation
This library created to help people to parse media type data, like headers, and store and match it. The main features of the library are to:
- Save a type as a structure (it can help pass mime type as an argument to a function or use as a field of a structure)
- Match mime types by a wildcard. It can be helpful for Accept header negotiation
- MUST be covered by tests to provide guarantees it works well
- Zero dependencies
Examples
Match a header with text
package main
import (
"fmt"
"github.com/aohorodnyk/mimeheader"
)
// Content-Type - application/json;q=0.9;p=2
func parse(contentType string) {
mtype, err := mimeheader.ParseMediaType(contentType)
fmt.Println(err) // nil
fmt.Println(mtype.MatchText("application/json; param=1")) // true
fmt.Println(mtype.MatchText("application/xml; param=1")) // false
fmt.Println(mtype.MatchText("*/plain; param=1")) // false
fmt.Println(mtype.MatchText("text/plain; param=1")) // false
}
Match accept header
package main
import (
"fmt"
"github.com/aohorodnyk/mimeheader"
)
// Accept - application/json;q=1.0,*/*;q=1.0; param=wild,image/png;q=1.0;param=test
func parse(acceptHeader string) {
ah := mimeheader.ParseAcceptHeader(acceptHeader)
fmt.Println(ah.Negotiate([]string{"application/json;param=1", "image/png"}, "text/javascript")) // image/png, image/png, true
}
