feat: add code for send to slack

.github/workflows/ci.yml

@@ -0,0 +1,39 @@
+name: CI
+
+on: [push]
+
+jobs:
+  ci:
+    name: CI
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: 1.19
+
+      - name: Cache dependencies
+        uses: actions/cache@v3
+        id: cache
+        with:
+          path: ~/go/pkg/mod
+          key: ${{ runner.OS }}-1.19-${{ hashFiles('**/go.sum') }}
+
+      - name: Get dependencies
+        if: ${{ steps.cache.outputs.cache-hit != 'true' }}
+        run: go mod download
+
+      - name: Run vet
+        run: go vet ./...
+
+      - name: Run staticcheck
+        uses: dominikh/staticcheck-action@v1
+        with:
+          version: 2022.1.2
+          install-go: false
+          cache-key: app
+
+      - name: Run test
+        run: go test -v ./...

.gitignore

@@ -27,9 +27,3 @@ Thumbs.db
 
 # asdf
 .tool-versions
-
-# dotenv
-.env
-
-# Output directory of binary
-/tmp

README.md

@@ -1,20 +1,13 @@
 # Sentry to Slack
 
-Sentry のデータを Slack に連携するためのツール
+Sentry のデータを Slack に連携するための関数群
 
 ## Requirements
 
-- Docker
+- Go 1.19+
 
-## Run
+## Environment Variables
 
-```console
-$ cp .env.example .env
-$ docker compose up
-```
-
-## Post data
-
-```console
-$ curl -X POST -d '{"url":"https://test.example.com","event":{"title":"TestError","level":"error","environment": "test"}}' http://localhost:8080
-```
+- SLACK_API_TOKEN: Slack の API トークン
+- SLACK_CHANNEL: 通知先のチャンネル
+- TAGS: 通知に利用したいタグをカンマ区切りで定義 (例: `server_name,environment`)

entity.go

@@ -0,0 +1,46 @@
+package sentry_to_slack
+
+type Body struct {
+	Url     string `json:"url"`
+	Project string `json:"project"`
+	Level   string `json:"level"`
+	Event   Event  `json:"event"`
+}
+
+func (b *Body) Color() string {
+	switch b.Level {
+	case "error":
+		return "#ff7738"
+	case "warning":
+		return "#b28000"
+	case "info":
+		return "#3070e8"
+	default:
+		return ""
+	}
+}
+
+type Event struct {
+	Title       string     `json:"title"`
+	Culprit     string     `json:"culprit"`
+	Environment string     `json:"environment"`
+	Tags        [][]string `json:"tags"`
+}
+
+// Slack へリクエストするための構造体
+type Request struct {
+	Channel     string              `json:"channel"`
+	Attachments []RequestAttachment `json:"attachments"`
+}
+
+type RequestAttachment struct {
+	Title  string         `json:"title"`
+	Color  string         `json:"color"`
+	Fields []RequestField `json:"fields"`
+}
+
+type RequestField struct {
+	Title string `json:"title"`
+	Value string `json:"value"`
+	Short bool   `json:"short"`
+}

entity_test.go

@@ -0,0 +1,21 @@
+package sentry_to_slack
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestColor(t *testing.T) {
+	for _, p := range []struct {
+		level string
+		color string
+	}{
+		{"error", "#ff7738"},
+		{"warning", "#b28000"},
+		{"info", "#3070e8"},
+	} {
+		b := Body{Level: p.level}
+		assert.Equal(t, b.Color(), p.color)
+	}
+}

go.mod

@@ -0,0 +1,11 @@
+module github.com/gotoeveryone/sentry_to_slack
+
+go 1.19
+
+require github.com/stretchr/testify v1.7.2
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

go.sum

@@ -0,0 +1,12 @@
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.7.2 h1:4jaiDzPyXQvSd7D0EjG45355tLlV3VOECpq10pLC+8s=
+github.com/stretchr/testify v1.7.2/go.mod h1:R6va5+xMeoiuVRoj+gSkQ7d3FALtqAAGI1FQKckRals=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

main.go

@@ -0,0 +1,64 @@
+package sentry_to_slack
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"os"
+	"strings"
+)
+
+func SendToSlack(r Request) (*http.Response, error) {
+	body, err := json.Marshal(r)
+	if err != nil {
+		return nil, err
+	}
+	c := http.Client{}
+	req, err := http.NewRequest("POST", "https://slack.com/api/chat.postMessage", bytes.NewBuffer(body))
+	if err != nil {
+		return nil, err
+	}
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", os.Getenv("SLACK_API_TOKEN")))
+	res, err := c.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	return res, nil
+}
+
+func CreateRequest(b Body) Request {
+	req := Request{
+		Channel: os.Getenv("SLACK_CHANNEL"),
+		Attachments: []RequestAttachment{
+			{
+				Title: fmt.Sprintf("<%s|%s>",
+					b.Url,
+					b.Event.Title,
+				),
+				Color: b.Color(),
+				Fields: []RequestField{
+					{Title: "", Value: b.Event.Culprit},
+				},
+			},
+		},
+	}
+
+	tags := strings.Split(os.Getenv("TAGS"), ",")
+	for _, tag := range tags {
+		for _, t := range b.Event.Tags {
+			if len(t) < 2 {
+				continue
+			}
+			key := t[0]
+			if key != strings.TrimSpace(tag) {
+				continue
+			}
+			value := t[1]
+			req.Attachments[0].Fields = append(req.Attachments[0].Fields, RequestField{Title: key, Value: value, Short: true})
+		}
+	}
+
+	return req
+}

main_test.go

@@ -0,0 +1,46 @@
+package sentry_to_slack
+
+import (
+	"fmt"
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestCreateRequest(t *testing.T) {
+	os.Setenv("SLACK_CHANNEL", "test_channel")
+	os.Setenv("TAGS", "server_name ,environment")
+	b := Body{
+		Url:     "https://test.example.com",
+		Level:   "error",
+		Project: "test_project",
+		Event: Event{
+			Title:   "TestError",
+			Culprit: "This is test error",
+			Tags: [][]string{
+				{"environment", "test"},
+				{"server_name", "test.example.com"},
+				{"ignore", "test"},
+			},
+		},
+	}
+	r := CreateRequest(b)
+	assert.Equal(t, r, Request{
+		Channel: "test_channel",
+		Attachments: []RequestAttachment{
+			{
+				Title: fmt.Sprintf("<%s|%s>",
+					b.Url,
+					b.Event.Title,
+				),
+				Color: b.Color(),
+				Fields: []RequestField{
+					{Title: "", Value: b.Event.Culprit},
+					{Title: "server_name", Value: "test.example.com", Short: true},
+					{Title: "environment", Value: "test", Short: true},
+				},
+			},
+		},
+	})
+}