error-pages/internal/http/handlers/version/handler.go
2024-06-23 16:12:06 +04:00

32 lines
732 B
Go

package version
import (
"encoding/json"
"net/http"
"strings"
)
// New creates a handler that returns the version of the service in JSON format.
func New(ver string) http.Handler {
var body, _ = json.Marshal(struct { //nolint:errchkjson
Version string `json:"version"`
}{
Version: strings.TrimSpace(ver),
})
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
switch r.Method {
case http.MethodGet:
w.Header().Set("Content-Type", "application/json; charset=utf-8")
w.WriteHeader(http.StatusOK)
_, _ = w.Write(body)
case http.MethodHead:
w.WriteHeader(http.StatusOK)
default:
http.Error(w, http.StatusText(http.StatusMethodNotAllowed), http.StatusMethodNotAllowed)
}
})
}