node-red-contrib-chatbot
Version:
REDBot a Chat bot for a full featured chat bot for Telegram, Facebook Messenger and Slack. Almost no coding skills required
74 lines (66 loc) • 2.29 kB
JavaScript
const RegisterType = require('../lib/node-installer');
const _ = require('underscore');
const { ChatExpress } = require('chat-platform');
const {
isValidMessage,
getChatId,
getMessageId,
getTransport,
extractValue
} = require('../lib/helpers/utils');
const MessageTemplate = require('../lib/message-template-async');
const GlobalContextHelper = require('../lib/helpers/global-context-helper');
require('../lib/platforms/telegram');
require('../lib/platforms/slack/index');
module.exports = function(RED) {
const registerType = RegisterType(RED);
const globalContextHelper = GlobalContextHelper(RED);
function ChatBotSlackBlocks(config) {
RED.nodes.createNode(this, config);
const node = this;
globalContextHelper.init(this.context().global);
this.blocks = config.blocks;
this.on('input', async function(msg, send, done) {
// send/done compatibility for node-red < 1.0
send = send || function() { node.send.apply(node, arguments) };
done = done || function(error) { node.error.call(node, error, msg) };
// check if valid message
if (!isValidMessage(msg, node)) {
return;
}
const chatId = getChatId(msg);
const messageId = getMessageId(msg);
const template = MessageTemplate(msg, node);
const transport = getTransport(msg);
// check transport compatibility
if (!ChatExpress.isSupported(transport, 'blocks')) {
done(`Node "blocks" is not supported by ${transport} transport`);
return;
}
// extract vars
let blocks = extractValue('string', 'blocks', node, msg);
// parse blocks
let rawBlocks;
try {
rawBlocks = JSON.parse(blocks);
} catch(e) {
done(e);
return;
}
const renderedBlocks = await template(rawBlocks)
send({
...msg,
payload: {
type: 'blocks',
text: _.isString(renderedBlocks.text) ? renderedBlocks.text : undefined,
content: _.isObject(renderedBlocks) && renderedBlocks.blocks != null ? renderedBlocks.blocks : renderedBlocks,
chatId: chatId,
messageId: messageId,
inbound: false
}
});
done();
});
}
registerType('chatbot-slack-blocks', ChatBotSlackBlocks);
};