github.com/prebid/prebid-server/v2@v2.18.0/endpoints/version.go (about)

     1  package endpoints
     2  
     3  import (
     4  	"encoding/json"
     5  	"net/http"
     6  
     7  	"github.com/golang/glog"
     8  	"github.com/prebid/prebid-server/v2/util/jsonutil"
     9  )
    10  
    11  const versionEndpointValueNotSet = "not-set"
    12  
    13  // NewVersionEndpoint returns the latest git tag as the version and commit hash as the revision from which the binary was built
    14  func NewVersionEndpoint(version, revision string) http.HandlerFunc {
    15  	response, err := prepareVersionEndpointResponse(version, revision)
    16  	if err != nil {
    17  		glog.Fatalf("error creating /version endpoint response: %v", err)
    18  	}
    19  
    20  	return func(w http.ResponseWriter, _ *http.Request) {
    21  		w.Write(response)
    22  	}
    23  }
    24  
    25  func prepareVersionEndpointResponse(version, revision string) (json.RawMessage, error) {
    26  	if version == "" {
    27  		version = versionEndpointValueNotSet
    28  	}
    29  	if revision == "" {
    30  		revision = versionEndpointValueNotSet
    31  	}
    32  
    33  	return jsonutil.Marshal(struct {
    34  		Revision string `json:"revision"`
    35  		Version  string `json:"version"`
    36  	}{
    37  		Revision: revision,
    38  		Version:  version,
    39  	})
    40  }