beemo_channel_send.js

var runBot = function(keybase_channel, message, topic_name) {

	return new Promise(function(resolve) {


		process.env['PATH'] = process.env['PATH'] + ':' + process.env['LAMBDA_TASK_ROOT'] + '/gopath/bin';

		const Bot = require('keybase-bot')

		const bot = new Bot()
		const username = process.env['KEYBASE_BOT_USERNAME']
		const paperkey = process.env['KEYBASE_BOT_PAPERKEY']
		bot
		  .init(username, paperkey, {verbose: false})
		  .then(() => {
		    console.log(`Your bot is initialized. It is logged in as ${bot.myInfo().username}`)


		  const channel = {
		    name: keybase_channel,
		    public: false,
		    topicType: 'chat',
		    membersType: 'team',
		    topicName: (typeof topic_name !== 'undefined' && topic_name !== null ? topic_name : 'general'),
		  }

		    const keybase_message = {
		      body: message
		    }

		    bot.chat
		      .send(channel, keybase_message)
		      .then(() => {
			console.log('Message sent!')
			bot.deinit()
			resolve(true);
		      })
		      .catch(error => {
			console.error(error)
			bot.deinit()
			resolve(false);
		      })
		  })
		  .catch(error => {
		    console.error(error)
		    bot.deinit()
			resolve(false);
		  })

	});
};
exports.handler = async (event) => {


  	const requestBody = JSON.parse(event.body);
  	const keybase_channel = requestBody.channel;
	const message = requestBody.message;
	const topic_name = requestBody.topic_name;

	var invokeBot = await runBot(keybase_channel, message, topic_name);
	const response = {
		statusCode: 200,
		body: JSON.stringify(invokeBot),
	};
	return response;
};