Using Gin gonic and some scheduler in Golang

Question

I have some REST service in Gin Gonic, and I need to do some job every 5 seconds using some scheduler. I've tried rakanalh and gocron but it seems that every code written after initializing crons or gin routes will not execute.

func main() {
    settings.AppSettings = settings.ReadSettings()

    db.InitOracleDataBase()
    OracleEnv, OracleSrv, OracleSes := db.GetOracleDB()
    defer OracleEnv.Close()
    defer OracleSrv.Close()
    defer OracleSes.Close()

    routes.Init()


    gocron.Every(5).Seconds().Do(prOk)
    <-gocron.Start()


}

prOk just prints OK, and it never will be executed, until I comment routes.init(). How it's possible to run both cron and gin routes concurrently?

Answer 1

You need to execute the gocron inside a goroutine, since the main goroutine will block (I guess routes.Init() starts an HTTP server too?)

func main() {
    settings.AppSettings = settings.ReadSettings()

    db.InitOracleDataBase()
    OracleEnv, OracleSrv, OracleSes := db.GetOracleDB()
    defer OracleEnv.Close()
    defer OracleSrv.Close()
    defer OracleSes.Close()

    go func() {
        gocron.Every(5).Seconds().Do(prOk)
        <-gocron.Start()
    }()

    routes.Init()
}