index.js

const express = require("express");
const app = express();
const TigerGraphCred = require("./config.js");
const fetch = require("node-fetch");

app.get("/profile/:id", async(req, res)=>{
    const person = req.params.id;
    const reqUrl = TigerGraphCred.queryUrl + `RP_getProfile?person=${person}`;
    const response =  await fetch(reqUrl, {
        headers:{
            "Content-Type": "application/json",
            "Authorization": `Bearer ${TigerGraphCred.token}`,
            "Accept":"application/json"
        }
    });

    if(response.status === 200){
        const json = await response.json();
        //query for the error and send appropriate status code and response
        if(json.error){
            res.status(400).send({"error": json.message});
        }
        else{
           res.status(200).send(json);
        }
    }
    else{
        const message = await response.text();
        res.status(500).send({'error': message});
    }
});

app.listen(5000);