auth-signup.js

"use strict"

const mongoose = require("mongoose");
const jwt = require("jsonwebtoken");
const User = require("./models/user");
const MONGO_URI = process.env.MONGO_URI;
const JWT_SECRET = process.env.JWT_SECRET;

let connection = null;

const connectDB = () => {
  if (connection && mongoose.connection.readyState === 1) return;
  mongoose.connect(MONGO_URI, { }).then(
    conn => {
      connection = conn;
    }
  );
};

module.exports.handler = async (event, context) => {
  const { id: userId, name: userName } = JSON.parse(event.body);
  console.log(userId);
  console.log(userName);
  if(typeof userId == "undefined" || userId == "" || userId == null || typeof userName == "undefined" || userName == "" || userName == null)
    return {
      statusCode: "400",
      body: JSON.stringify({
        "message": "Bad Request",
      })
    };
    
  connectDB();

  try {
    const existingUser = await User.findOne({ id: userId }).populate("friends");
    if (existingUser) 
      return {
        statusCode: "409",
        body: JSON.stringify({
          "message": "Duplicated User",
        })
      };
     
    const zeroArray = Array(9).fill(0);
    const newUser = await User.create({
      id: userId,
      name: userName,
      animal: zeroArray,
      emoji: zeroArray,
      color: zeroArray,
      first: zeroArray,
      now: zeroArray,
    });
      
    if(newUser){
      const token = jwt.sign(
        {
          id: userId,
          name: userName,
        },
        JWT_SECRET,
        {
          expiresIn: "30m",
        }
      );
    
      return {
        statusCode: "201",
        body: JSON.stringify({
          "message": "New User Created",
          "data": {
            "id": userId,
            "name": userName,
            "token": token,
          }
        })
      };    
    
    }
    else{
      throw new Error('Failed to Create New User');
    }
    
  } catch (err) {
    console.log(err);
    return {
      statusCode: "400",
      body: JSON.stringify({
        "message": "Bad Request",
      })
    };
  }

};