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runner.go
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runner.go
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package samples
import (
"context"
"flag"
"log"
"net/http"
"time"
"github.com/cschleiden/go-workflows/backend"
"github.com/cschleiden/go-workflows/backend/mysql"
"github.com/cschleiden/go-workflows/backend/redis"
"github.com/cschleiden/go-workflows/backend/sqlite"
"github.com/cschleiden/go-workflows/diag"
redisv9 "github.com/redis/go-redis/v9"
)
func GetBackend(name string, opt ...backend.BackendOption) backend.Backend {
b := flag.String("backend", "redis", "backend to use: memory, sqlite, mysql, redis")
flag.Parse()
switch *b {
case "memory":
return sqlite.NewInMemoryBackend(sqlite.WithBackendOptions(opt...))
case "sqlite":
return sqlite.NewSqliteBackend(name+".sqlite", sqlite.WithBackendOptions(opt...))
case "mysql":
return mysql.NewMysqlBackend("localhost", 3306, "root", "root", name, mysql.WithBackendOptions(opt...))
case "redis":
rclient := redisv9.NewUniversalClient(&redisv9.UniversalOptions{
Addrs: []string{"localhost:6379"},
Username: "",
Password: "RedisPassw0rd",
DB: 0,
WriteTimeout: time.Second * 30,
ReadTimeout: time.Second * 30,
})
rclient.FlushAll(context.Background()).Result()
b, err := redis.NewRedisBackend(rclient, redis.WithBackendOptions(opt...))
if err != nil {
panic(err)
}
// Start diagnostic server under /diag
m := http.NewServeMux()
m.Handle("/diag/", http.StripPrefix("/diag", diag.NewServeMux(b)))
go http.ListenAndServe(":3000", m)
log.Println("Debug UI available at http://localhost:3000/diag")
return b
default:
panic("unknown backend " + *b)
}
}