Add slack

slack.go

@@ -0,0 +1,80 @@
+package cachet
+
+import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"log"
+	"net/http"
+	"time"
+)
+
+type Slack struct {
+	WebhookUrl  string
+	Attachments []Attachments `json:"attachments"`
+}
+type Fields struct {
+	Title string `json:"title"`
+	Value string `json:"value"`
+	Short bool   `json:"short"`
+}
+type Attachments struct {
+	Fallback   string   `json:"fallback"`
+	Color      string   `json:"color"`
+	Pretext    string   `json:"pretext"`
+	Title      string   `json:"title"`
+	TitleLink  string   `json:"title_link"`
+	Text       string   `json:"text"`
+	Fields     []Fields `json:"fields"`
+	ThumbURL   string   `json:"thumb_url"`
+	Footer     string   `json:"footer"`
+	FooterIcon string   `json:"footer_icon"`
+	Ts         int64    `json:"ts"`
+}
+
+func test() {
+	slack := Slack{
+		Attachments: []Attachments{
+			Attachments{
+				Fallback:   "Required plain-text summary of the attachment.",
+				Color:      "#36a64f",
+				Title:      "Slack API Documentation",
+				TitleLink:  "https://status.easyship.com",
+				Text:       "Optional text that appears within the attachment",
+				Footer:     "Cachet Monitor",
+				FooterIcon: "https://i.imgur.com/spck1w6.png",
+				Ts:         time.Now().Unix(),
+			},
+		}}
+	slack.WebhookUrl = "https://hooks.slack.com/services/0000000/00000000/xxxxxxxxxxxxxxxxxxx"
+	err := slack.SendSlackNotification()
+	if err != nil {
+		log.Fatal(err)
+	}
+}
+
+// SendSlackNotification will post to an 'Incoming Webook' url setup in Slack Apps. It accepts
+// some text and the slack channel is saved within Slack.
+func (slack *Slack) SendSlackNotification() error {
+
+	slackBody, _ := json.Marshal(slack)
+	req, err := http.NewRequest(http.MethodPost, slack.WebhookUrl, bytes.NewBuffer(slackBody))
+	if err != nil {
+		return err
+	}
+
+	req.Header.Add("Content-Type", "application/json")
+
+	client := &http.Client{Timeout: 10 * time.Second}
+	resp, err := client.Do(req)
+	if err != nil {
+		return err
+	}
+
+	buf := new(bytes.Buffer)
+	buf.ReadFrom(resp.Body)
+	if buf.String() != "ok" {
+		return errors.New("Non-ok response returned from Slack")
+	}
+	return nil
+}