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slack.go
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slack.go
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package main
import (
"encoding/json"
"errors"
"log"
"net/http"
"net/url"
)
type SlackPayload struct {
Channel string `json:"channel"`
UserName string `json:"username"`
IconEmoji string `json:"icon_emoji"`
IconURL string `json:"icon_url"`
Attathments []SlackAttachment `json:"attachments"`
}
type SlackAttachment struct {
Title string `json:"title"`
TitleLink string `json:"title_link"`
PreText string `json:"pretext"`
Text string `json:"text"`
Color string `json:"color"`
}
func postSlack(sa SlackAttachment, sc SlackConfig) error {
log.Printf("start to post slack: %#v", sa)
p := SlackPayload{
Channel: sc.Channel,
UserName: sc.UserName,
IconEmoji: sc.IconEmoji,
IconURL: sc.IconURL,
Attathments: []SlackAttachment{sa},
}
payload, err := json.Marshal(p)
if err != nil {
log.Printf("json marshal error: %s", err)
return err
}
res, err := http.PostForm(sc.WebhookURL, url.Values{"payload": {string(payload)}})
if err != nil {
log.Printf("slack request error: %s", err)
return err
}
defer res.Body.Close()
if res.StatusCode != http.StatusOK {
log.Printf("cslack status error: %d", res.StatusCode)
return errors.New(res.Status)
}
return nil
}