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package main
import (
"fmt"
"log"
"os"
"strings"
"github.com/slack-go/slack/slackevents"
"github.com/slack-go/slack/socketmode"
"github.com/slack-go/slack"
)
func main() {
appToken := os.Getenv("SLACK_APP_TOKEN")
if appToken == "" {
panic("SLACK_APP_TOKEN must be set.\n")
}
if !strings.HasPrefix(appToken, "xapp-") {
panic("SLACK_APP_TOKEN must have the prefix \"xapp-\".")
}
botToken := os.Getenv("SLACK_BOT_TOKEN")
if botToken == "" {
panic("SLACK_BOT_TOKEN must be set.\n")
}
if !strings.HasPrefix(botToken, "xoxb-") {
panic("SLACK_BOT_TOKEN must have the prefix \"xoxb-\".")
}
api := slack.New(
botToken,
slack.OptionDebug(true),
slack.OptionLog(log.New(os.Stdout, "api: ", log.Lshortfile|log.LstdFlags)),
slack.OptionAppLevelToken(appToken),
)
client := socketmode.New(
api,
socketmode.OptionDebug(true),
socketmode.OptionLog(log.New(os.Stdout, "socketmode: ", log.Lshortfile|log.LstdFlags)),
)
socketmodeHandler := socketmode.NewSocketmodeHandler(client)
socketmodeHandler.Handle(socketmode.EventTypeConnecting, middlewareConnecting)
socketmodeHandler.Handle(socketmode.EventTypeConnectionError, middlewareConnectionError)
socketmodeHandler.Handle(socketmode.EventTypeConnected, middlewareConnected)
//\\ EventTypeEventsAPI //\\
// Handle all EventsAPI
socketmodeHandler.Handle(socketmode.EventTypeEventsAPI, middlewareEventsAPI)
// Handle a specific event from EventsAPI
socketmodeHandler.HandleEvents(slackevents.AppMention, middlewareAppMentionEvent)
//\\ EventTypeInteractive //\\
// Handle all Interactive Events
socketmodeHandler.Handle(socketmode.EventTypeInteractive, middlewareInteractive)
// Handle a specific Interaction
socketmodeHandler.HandleInteraction(slack.InteractionTypeBlockActions, middlewareInteractionTypeBlockActions)
// Handle all SlashCommand
socketmodeHandler.Handle(socketmode.EventTypeSlashCommand, middlewareSlashCommand)
socketmodeHandler.HandleSlashCommand("/rocket", middlewareSlashCommand)
// socketmodeHandler.HandleDefault(middlewareDefault)
socketmodeHandler.RunEventLoop()
}
func middlewareConnecting(evt *socketmode.Event, client *socketmode.Client) {
fmt.Println("Connecting to Slack with Socket Mode...")
}
func middlewareConnectionError(evt *socketmode.Event, client *socketmode.Client) {
fmt.Println("Connection failed. Retrying later...")
}
func middlewareConnected(evt *socketmode.Event, client *socketmode.Client) {
fmt.Println("Connected to Slack with Socket Mode.")
}
func middlewareEventsAPI(evt *socketmode.Event, client *socketmode.Client) {
fmt.Println("middlewareEventsAPI")
eventsAPIEvent, ok := evt.Data.(slackevents.EventsAPIEvent)
if !ok {
fmt.Printf("Ignored %+v\n", evt)
return
}
fmt.Printf("Event received: %+v\n", eventsAPIEvent)
client.Ack(*evt.Request)
switch eventsAPIEvent.Type {
case slackevents.CallbackEvent:
innerEvent := eventsAPIEvent.InnerEvent
switch ev := innerEvent.Data.(type) {
case *slackevents.AppMentionEvent:
fmt.Printf("We have been mentionned in %v", ev.Channel)
_, _, err := client.Client.PostMessage(ev.Channel, slack.MsgOptionText("Yes, hello.", false))
if err != nil {
fmt.Printf("failed posting message: %v", err)
}
case *slackevents.MemberJoinedChannelEvent:
fmt.Printf("user %q joined to channel %q", ev.User, ev.Channel)
}
default:
client.Debugf("unsupported Events API event received")
}
}
func middlewareAppMentionEvent(evt *socketmode.Event, client *socketmode.Client) {
eventsAPIEvent, ok := evt.Data.(slackevents.EventsAPIEvent)
if !ok {
fmt.Printf("Ignored %+v\n", evt)
return
}
client.Ack(*evt.Request)
ev, ok := eventsAPIEvent.InnerEvent.Data.(*slackevents.AppMentionEvent)
if !ok {
fmt.Printf("Ignored %+v\n", ev)
return
}
fmt.Printf("We have been mentionned in %v\n", ev.Channel)
_, _, err := client.Client.PostMessage(ev.Channel, slack.MsgOptionText("Yes, hello.", false))
if err != nil {
fmt.Printf("failed posting message: %v", err)
}
}
func middlewareInteractive(evt *socketmode.Event, client *socketmode.Client) {
callback, ok := evt.Data.(slack.InteractionCallback)
if !ok {
fmt.Printf("Ignored %+v\n", evt)
return
}
fmt.Printf("Interaction received: %+v\n", callback)
var payload interface{}
switch callback.Type {
case slack.InteractionTypeBlockActions:
// See https://api.slack.com/apis/connections/socket-implement#button
client.Debugf("button clicked!")
case slack.InteractionTypeShortcut:
case slack.InteractionTypeViewSubmission:
// See https://api.slack.com/apis/connections/socket-implement#modal
case slack.InteractionTypeDialogSubmission:
default:
}
client.Ack(*evt.Request, payload)
}
func middlewareInteractionTypeBlockActions(evt *socketmode.Event, client *socketmode.Client) {
client.Debugf("button clicked!")
}
func middlewareSlashCommand(evt *socketmode.Event, client *socketmode.Client) {
cmd, ok := evt.Data.(slack.SlashCommand)
if !ok {
fmt.Printf("Ignored %+v\n", evt)
return
}
client.Debugf("Slash command received: %+v", cmd)
payload := map[string]interface{}{
"blocks": []slack.Block{
slack.NewSectionBlock(
&slack.TextBlockObject{
Type: slack.MarkdownType,
Text: "foo",
},
nil,
slack.NewAccessory(
slack.NewButtonBlockElement(
"",
"somevalue",
&slack.TextBlockObject{
Type: slack.PlainTextType,
Text: "bar",
},
),
),
),
}}
client.Ack(*evt.Request, payload)
}
func middlewareDefault(evt *socketmode.Event, client *socketmode.Client) {
// fmt.Fprintf(os.Stderr, "Unexpected event type received: %s\n", evt.Type)
}
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