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https://github.com/appleboy/graceful

graceful shutdown package when a service is turned off by software function
https://github.com/appleboy/graceful

golang golang-package graceful graceful-shutdown graceful-stop

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graceful shutdown package when a service is turned off by software function

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# graceful

[![Run Tests](https://github.com/appleboy/graceful/actions/workflows/go.yml/badge.svg)](https://github.com/appleboy/graceful/actions/workflows/go.yml)
[![codecov](https://codecov.io/gh/appleboy/graceful/branch/master/graph/badge.svg?token=zPqtcz0Rum)](https://codecov.io/gh/appleboy/graceful)
[![Go Report Card](https://goreportcard.com/badge/github.com/appleboy/graceful)](https://goreportcard.com/report/github.com/appleboy/graceful)
[![Go Reference](https://pkg.go.dev/badge/github.com/gin-contrib/graceful.svg)](https://pkg.go.dev/github.com/gin-contrib/graceful)

Graceful shutdown package when a service is turned off by software function.

## Example

Add running job

```go
package main

import (
"context"
"log"
"time"

"github.com/appleboy/graceful"
)

func main() {
m := graceful.NewManager()

// Add job 01
m.AddRunningJob(func(ctx context.Context) error {
for {
select {
case <-ctx.Done():
return nil
default:
log.Println("working job 01")
time.Sleep(1 * time.Second)
}
}
})

// Add job 02
m.AddRunningJob(func(ctx context.Context) error {
for {
select {
case <-ctx.Done():
return nil
default:
log.Println("working job 02")
time.Sleep(500 * time.Millisecond)
}
}
})

<-m.Done()
}
```

You can also add shutdown jobs.

```go
package main

import (
"context"
"log"
"time"

"github.com/appleboy/graceful"
)

func main() {
m := graceful.NewManager()

// Add job 01
m.AddRunningJob(func(ctx context.Context) error {
for {
select {
case <-ctx.Done():
return nil
default:
log.Println("working job 01")
time.Sleep(1 * time.Second)
}
}
})

// Add job 02
m.AddRunningJob(func(ctx context.Context) error {
for {
select {
case <-ctx.Done():
return nil
default:
log.Println("working job 02")
time.Sleep(500 * time.Millisecond)
}
}
})

// Add shutdown 01
m.AddShutdownJob(func() error {
log.Println("shutdown job 01 and wait 1 second")
time.Sleep(1 * time.Second)
return nil
})

// Add shutdown 02
m.AddShutdownJob(func() error {
log.Println("shutdown job 02 and wait 2 second")
time.Sleep(2 * time.Second)
return nil
})

<-m.Done()
}
```

Using custom logger, see the [zerolog example](./_example/example03/logger.go)

```go
m := graceful.NewManager(
graceful.WithLogger(logger{}),
)
```

get [more information](./_example/example03/main.go)