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webhook.go
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webhook.go
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package webhook
import (
"bytes"
"encoding/json"
"fmt"
log "github.com/sirupsen/logrus"
"net/http"
"time"
)
type Client struct {
client *http.Client
uri string
token string
}
// NewWebhookClient creates new webhook client
func NewWebhookClient(uri string, token string) (*Client, error) {
if uri == "" {
return nil, fmt.Errorf("emty uri")
}
if token == "" {
log.Infof("empty token for webhook")
}
return &Client{
client: &http.Client{Timeout: 10 * time.Second},
uri: uri,
token: token,
}, nil
}
func (s *Client) Publish(payload any) error {
jsonData, err := json.Marshal(payload)
if err != nil {
return err
}
request, err := http.NewRequest("POST", s.uri, bytes.NewBuffer(jsonData))
if err != nil {
return err
}
request.Header.Set("Content-Type", "application/json; charset=UTF-8")
if s.token != "" {
request.Header.Add("Authorization", "Bearer "+s.token)
}
for i := 0; i < 3; i++ {
err := send(s.client, request)
if err != nil {
log.Errorf("webhook sending error: %v", err)
continue
}
return nil
}
return fmt.Errorf("attempts to send a webhook ended")
}
func send(client *http.Client, request *http.Request) error {
response, err := client.Do(request)
if err != nil {
return fmt.Errorf("webhook sending error: %v", err)
}
defer func() {
err := response.Body.Close()
if err != nil {
log.Fatalf("response body close error: %v", err)
}
}()
if response.StatusCode == 200 {
return nil
} else {
return fmt.Errorf("webhook response status: %v", response.Status)
}
}