How to get variable value, if the variable was inside app.use

chatbot.js:

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


app.use(['/chat', '/chatbot'], (req, res, next) => {
const bot = req.query.bot;
const client = req.query.client;
const text = req.query.text;
const json = require('./json/chatbot')
        
const result = JSON.parse(JSON.stringify(json.result[req.query.text].reply));

  console.log(result)
  res.json({'reply': result});
});

module.exports = app;

json/chatbot.js:

const botFile = require('../chatbot');
const bot = botFile.app.bot;


const data1 = ["Hi!", "Yo!", "Wassup", `Hello ${client}`]
const rep1 = data1[Math.round(Math.random() * data1.length)]

const json = {
        "result": {
"hi": {
    "reply": rep1,
    "id": 0
},
"hello": {
    "reply": rep1,
    "id": 0
},
"sup": {
    "reply": rep1,
    "id": 0
},
"yo": {
    "reply": rep1 ,
    "id": 0
},
"who are you": {
    "reply": `I'am ${bot}`,
    "id": 1
}
}}

module.exports = json;

USED URL:

https://api.domain.repl.co/api/v1/chat?client=ClientTEST&bot=Chat Bot&text=who are you

It should replied

{"reply": "I'am Chat Bot"}

But instead, it replied

{"reply": "I'am undefined"}

There's no error in console

CodePudding user response：

Maybe something like this:

chatbot.js

const express = require('express');
const app = express.Router();
const getBot = require('./getBot.js')


app.use(['/chat', '/chatbot'], (req, res, next) => {
const bot = req.query.bot;
const client = req.query.client;
const text = req.query.text;

const json= getBot(client, bot);

const result = JSON.parse(JSON.stringify(json.result[req.query.text].reply));

  console.log(result)
  res.json({'reply': result});
});

module.exports = app;

getBot.js

function getBot(client, bot){
  const data1 = ["Hi!", "Yo!", "Wassup", `Hello ${client}`]
  const rep1 = data1[Math.round(Math.random() * data1.length)]
  
  return {
          "result": {
  "hi": {
      "reply": rep1,
      "id": 0
  },
  "hello": {
      "reply": rep1,
      "id": 0
  },
  "sup": {
      "reply": rep1,
      "id": 0
  },
  "yo": {
      "reply": rep1 ,
      "id": 0
  },
  "who are you": {
      "reply": `I'am ${bot}`,
      "id": 1
  }
  }}

}

module.exports = getBot;