twitch-bot/internal/helpers/retry.go
Knut Ahlers 0d10b5165f
[core] Add retries for database access methods
to compensate for database temporarily not being available. This is not
suitable for longer database outages as 5 retries with a 1.5 multiplier
will not give much time to recover but should cover for cluster changes
and short network hickups.

Signed-off-by: Knut Ahlers <knut@ahlers.me>
2023-12-04 16:19:36 +01:00

26 lines
676 B
Go

package helpers
import (
"github.com/Luzifer/go_helpers/v2/backoff"
"gorm.io/gorm"
)
const (
maxRetries = 5
)
// Retry contains a standard set of configuration parameters for an
// exponential backoff to be used throughout the bot
func Retry(fn func() error) error {
return backoff.NewBackoff().
WithMaxIterations(maxRetries).
Retry(fn)
}
// RetryTransaction takes a database object and a function acting on
// the database. The function will be run in a transaction on the
// database and will be retried as if executed using Retry
func RetryTransaction(db *gorm.DB, fn func(tx *gorm.DB) error) error {
return Retry(func() error { return db.Transaction(fn) })
}