docs: Add example of interactive slash command

examples/interactive/main.go

@@ -0,0 +1,67 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"os"
+
+	"github.com/shomali11/slacker"
+	"github.com/slack-go/slack"
+	"github.com/slack-go/slack/socketmode"
+)
+
+// Implements a basic interactive command. This assumes that a slash command
+// `/mood` is defined for your app.
+
+func slackerCmd(actionID string) func(botCtx slacker.BotContext, request slacker.Request, response slacker.ResponseWriter) {
+	return func(botCtx slacker.BotContext, request slacker.Request, response slacker.ResponseWriter) {
+		happyBtn := slack.NewButtonBlockElement("happy", "true", slack.NewTextBlockObject("plain_text", "Happy 🙂", true, false))
+		happyBtn.Style = "primary"
+		sadBtn := slack.NewButtonBlockElement("sad", "false", slack.NewTextBlockObject("plain_text", "Sad ☹️", true, false))
+		sadBtn.Style = "danger"
+
+		err := response.Reply("", slacker.WithBlocks([]slack.Block{
+			slack.NewSectionBlock(slack.NewTextBlockObject(slack.PlainTextType, "What is your mood today?", true, false), nil, nil),
+			slack.NewActionBlock(actionID, happyBtn, sadBtn),
+		}))
+
+		if err != nil {
+			fmt.Println(err)
+		}
+	}
+}
+
+func slackerInteractive(ctx slacker.InteractiveBotContext, request *socketmode.Request, callback *slack.InteractionCallback) {
+	text := ""
+	action := callback.ActionCallback.BlockActions[0]
+	switch action.ActionID {
+	case "happy":
+		text = "I'm happy to hear you are happy!"
+	case "sad":
+		text = "I'm sorry to hear you are sad."
+	default:
+		text = "I don't understand your mood..."
+	}
+
+	_, _, _ = ctx.ApiClient().PostMessage(callback.Channel.ID, slack.MsgOptionText(text, false),
+		slack.MsgOptionReplaceOriginal(callback.ResponseURL))
+}
+
+func main() {
+	bot := slacker.NewClient(os.Getenv("SLACK_BOT_TOKEN"), os.Getenv("SLACK_APP_TOKEN"))
+	bot.Command("mood", &slacker.CommandDefinition{
+		BlockID:     "mood",
+		Handler:     slackerCmd("mood"),
+		Interactive: slackerInteractive,
+		HideHelp:    true,
+	})
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	err := bot.Listen(ctx)
+	if err != nil {
+		log.Fatal(err)
+	}
+}