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runner.go
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/
runner.go
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package http
import (
"context"
"errors"
"fmt"
"io"
"io/ioutil"
"log"
"net/http"
"strings"
"github.com/akornatskyy/scheduler/domain"
)
var (
userAgent = fmt.Sprintf("Scheduler/%s", domain.Version)
)
type httpRunner struct {
client *http.Client
}
func NewRunner() domain.Runner {
return &httpRunner{
client: &http.Client{},
}
}
func (runner *httpRunner) Run(ctx context.Context, a *domain.Action) error {
r := a.Request
var reader io.Reader
if r.Body != "" {
reader = strings.NewReader(r.Body)
}
req, err := http.NewRequest(r.Method, r.URI, reader)
if err != nil {
return err
}
for _, p := range r.Headers {
req.Header.Add(p.Name, p.Value)
}
req.Header.Set("User-Agent", userAgent)
resp, err := runner.client.Do(req.WithContext(ctx))
if err != nil {
log.Printf("%s %s - %s", r.Method, r.URI, err)
return err
}
body, err := ioutil.ReadAll(resp.Body)
log.Printf("%s %s - %d %d", r.Method, r.URI, resp.StatusCode, len(body))
if err != nil {
return err
}
if resp.StatusCode < 200 || resp.StatusCode >= 300 {
return &domain.RunError{
Code: resp.StatusCode,
Err: errors.New(http.StatusText(resp.StatusCode)),
}
}
return nil
}