Simple and easy retry mechanism package for Go
Install the package using
$ go get github.com/thedevsaddam/retryTo use the package import it in your *.go code
import "github.com/thedevsaddam/retry"Simply retry a function to execute for max 10 times with interval of 1 second
package main
import (
"fmt"
"time"
"github.com/thedevsaddam/retry"
)
func main() {
i := 1 // lets assume we expect i to be a value of 8
err := retry.DoFunc(10, 1*time.Second, func() error {
fmt.Printf("trying for: %dth time\n", i)
i++
if i > 7 {
return nil
}
return fmt.Errorf("i = %d is still low value", i)
})
if err != nil {
panic(err)
}
fmt.Println("Got our expected result: ", i)
}We can execute function from other package with arguments and return values
package main
import (
"errors"
"log"
"time"
"github.com/thedevsaddam/retry"
)
func div(a, b float64) (float64, error) {
if b == 0 {
return 0, errors.New("Can not divide by zero")
}
return a / b, nil
}
func main() {
a := 20.6
b := 3.7 // if we assign 0.0 to b, it will cause an error and will retry for 3 times
res, err := retry.Do(3, 5*time.Second, div, a, b)
if err != nil {
panic(err)
}
log.Println(res)
}If you are interested to make the package better please send pull requests or create an issue so that others can fix. Read the contribution guide here.
The retry is an open-source software licensed under the MIT License.