Golang Error示例

示例#1

文件： main.go 项目： raymens/horizon

// WriteEvent does the actual work of formatting an SSE compliant message
// sending it over the provided ResponseWriter and flushing.
func WriteEvent(ctx context.Context, w http.ResponseWriter, e Event) {
	if e.Error != nil {
		fmt.Fprint(w, "event: err\n")
		fmt.Fprintf(w, "data: %s\n\n", e.Error.Error())
		w.(http.Flusher).Flush()
		log.Error(ctx, e.Error)
		return
	}

	// TODO: add tests to ensure retry get's properly rendered
	if e.Retry != 0 {
		fmt.Fprintf(w, "retry: %d\n", e.Retry)
	}

	if e.ID != "" {
		fmt.Fprintf(w, "id: %s\n", e.ID)
	}

	if e.Event != "" {
		fmt.Fprintf(w, "event: %s\n", e.Event)
	}

	fmt.Fprintf(w, "data: %s\n\n", getJSON(e.Data))
	w.(http.Flusher).Flush()
}

示例#2

文件： db.go 项目： irisli/horizon

	hlog "github.com/stellar/horizon/log"
)

var dbCmd = &cobra.Command{
	Use:   "db [command]",
	Short: "commands to manage horizon's postgres db",
}

var dbInitCmd = &cobra.Command{
	Use:   "init",
	Short: "install schema",
	Long:  "init initializes the postgres database used by horizon.",
	Run: func(cmd *cobra.Command, args []string) {
		db, err := db2.Open(viper.GetString("db-url"))
		if err != nil {
			hlog.Error(err)
			os.Exit(1)
		}

		err = schema.Init(db)
		if err != nil {
			hlog.Error(err)
			os.Exit(1)
		}
	},
}

var dbMigrateCmd = &cobra.Command{
	Use:   "migrate [up|down|redo] [COUNT]",
	Short: "migrate schema",
	Long:  "performs a schema migration command",