LInBot | A Python bot to increase your popularity on LinkedIn | Portal library

const line = require('@line/bot-sdk');
const express = require('express');

const dialogflow = require('dialogflow');
const uuid = require('uuid');
const lineConfig = {
  channelAccessToken: process.env.HEROKU_LINE_CHANNEL_ACCESS_TOKEN,
  channelSecret: process.env.HEROKU_LINE_CHANNEL_SECRET
};
const client = new line.Client(lineConfig);
const app = express();
app.post('/webhook', line.middleware(lineConfig), function(req, res) {
  Promise
    .all(req.body.events.map(handleEvent))
    .then(function(result) {
      res.json(result);
    });
});
async function handleEvent(event) {
  switch (event.type) {
    case 'join':
    case 'follow':
      return client.replyMessage(event.replyToken, {
        type: 'text',
        text: 'hello~'
      });   
    case 'message':
      switch (event.message.type) {
          case 'text':
              const response = await queryDF(event.message.text)
              // you will get response from DF here
          return client.replyMessage(event.replyToken, {
            type: 'text',
            text: (event.message.text+'~yu')
          });
      }
  }
}


async function queryDF(message, projectId = 'your-project-id') {
    // A unique identifier for the given session
    const sessionId = uuid.v4();

    // Create a new session
    const sessionClient = new dialogflow.SessionsClient();
    const sessionPath = sessionClient.sessionPath(projectId, sessionId);

    // The text query request.
    const request = {
        session: sessionPath,
        queryInput: {
            text: {
                // The query to send to the dialogflow agent
                text: message,
                // The language used by the client (en-US)
                languageCode: 'en-US',
            },
        },
    };

    // Send request and log result
    const responses = await sessionClient.detectIntent(request);
    return responses[0].queryResult;

}
app.listen(process.env.PORT || 3000, function(){
  console.log("Express server listening on port %d in %s mode", this.address().port, app.settings.env);
});