package.json

{
  "name": "slack-issue",
  "version": "0.0.0",
  "description": "Slack Issue Repro",
  "main": "server.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "Brian Kelley",
  "license": "ISC",
  "dependencies": {
    "@slack/interactive-messages": "^1.4.1",
    "@slack/web-api": "^5.7.0",
    "express": "^4.17.1"
  }
}

server.js

const express = require('express');
const app = express();

/**
* Define these constants
*/
const BOT_TOKEN = '';
const channelName = '';
const SLACK_BOT_USER = '';
const slackSigningSecret = '';

const { WebClient } = require('@slack/web-api');
const client = new WebClient(BOT_TOKEN);

const { createMessageAdapter } = require('@slack/interactive-messages');
const slackInteractions = createMessageAdapter(slackSigningSecret);

client.chat.postMessage({
    as_user: true,
    username: SLACK_BOT_USER,
    channel: `@${channelName}`,
    blocks: [{
        "type": "section",
        "text": {
            "type": "mrkdwn",
            "text": "Test messaging"
        }
    }, {
        "type": "actions",
        "elements": [{
            "type": "button",
            "text": {
                "type": "plain_text",
                "emoji": true,
                "text": "Delete"
            },
            "style": "primary",
            "value": "delete",
            "action_id": "delete"
        }]
    }],
    text: 'Test message'
});


app.use('/slack/actions', slackInteractions.requestListener());
slackInteractions.action({ type: 'button', actionId: 'delete' }, async (payload, respond) => {
    console.log('Button payload received');
    try {
        return await respond({
            blocks: [{
                "type": "section",
                "text": {
                    "type": "mrkdwn",
                    "text": `Successfully performed the action`
                }
            }],
            text: 'Action success',
            replace_original: false
        });
    } catch (err) {
        return await respond({
            blocks: [{
                "type": "section",
                "text": {
                    "type": "mrkdwn",
                    "text": `Failed to perform the action`
                }
            }],
            text: 'Action error',
            replace_original: false
        });
    }
});


const port = process.env.PORT || 3000;
app.listen(port);
console.log(`SDK reproducer listening on port ${port}`);