/
slack.go
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/
slack.go
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// Copyright 2018 github.com/ucirello
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package slack is a service to operate Slack integrations.
package slack // import "cirello.io/cci/pkg/infra/slack"
import (
"bytes"
"encoding/json"
"io"
"io/ioutil"
"net/http"
"cirello.io/cci/pkg/errors"
)
// Sends a message to a given Slack webhook.
func Send(webhookURL string, msg string) error {
var payload bytes.Buffer
err := json.NewEncoder(&payload).Encode(struct {
Text string `json:"text"`
}{Text: msg})
if err != nil {
return errors.E(err, "cannot encode slack message")
}
response, err := http.Post(webhookURL, "application/json", &payload)
if err != nil {
return errors.E(err, "cannot send slack message")
}
if _, err := io.Copy(ioutil.Discard, response.Body); err != nil {
return errors.E(err, "cannot drain response body")
}
return nil
}