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package circuitbreaker
import (
"context"
"github.com/afex/hystrix-go/hystrix"
"github.com/go-kit/kit/endpoint"
)
// Hystrix returns an endpoint.Middleware that implements the circuit
// breaker pattern using the afex/hystrix-go package.
//
// When using this circuit breaker, please configure your commands separately.
//
// See https://godoc.org/github.com/afex/hystrix-go/hystrix for more
// information.
func Hystrix(commandName string) endpoint.Middleware {
return func(next endpoint.Endpoint) endpoint.Endpoint {
return func(ctx context.Context, request interface{}) (response interface{}, err error) {
var resp interface{}
if err := hystrix.Do(commandName, func() (err error) {
resp, err = next(ctx, request)
return err
}, nil); err != nil {
return nil, err
}
return resp, nil
}
}
}
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