400 Status Code — Bad Request

[KentH846]

Hello

I am new to setting up email API. I am struggling to make this work with Constant Contact.

I am using node.js with Express, and using Request as my HTTP client. Something is not configured correctly in my options or the data I am using to make the post request. My form has three inputs: First Name, Last Name and Email. Can someone with knowledge of this approach help me out?
Thank you

const express = require("express");

const bodyParser = require("body-parser");

const request = require("request");

const app = express();

app.use(express.static("public"));

app.use(

  bodyParser.urlencoded({

    extended: true

  })

);

app.get("/", function(req, res) {

  res.sendFile(__dirname + "/signup.html");

});

app.post("/", function(req, res) {

  let firstName = req.body.fName;

  let lastName = req.body.lName;

  let email = req.body.email;

  let data = {

    first_name: firstName,

    last_name: lastName,

    email_address: email

  };

  let jsonData = JSON.stringify(data);

  let options = {

    url:

      "https://api.constantcontact.com/v2/lists?api_key=xxxxxx",

    method: "POST",

    headers: {

      Authorization: "Bearer xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"

    },

    body: jsonData

  };

  request(options, function(error, response, body) {

    console.log(response.statusCode);

  });

});

app.listen(3000, function() {

  console.log("server has started on port 3000");

});

*moderator note: edited content for privacy