NodeJS Failing to load in JSON

This is what my code looks like:

'use strict';

process.env.AWS_PROFILE

// Load the AWS SDK for Node.js
const AWS = require('aws-sdk');

// Create EC2 service object
var ec2 = new AWS.EC2({apiVersion: '2016-11-15'});

// Load credentials and set region from JSON file
AWS.config.loadFromPath('/Users/testuser/.aws/credentials');
// Load in security group parameters
const securityParams = require('./securityParams.json');

module.exports = {
    //Exports creation of Security Groups
    CreateSecurityGroup: (req, res) => {
        ec2.createSecurityGroup(securityParams, function(err, data) {
            if (err) {
                return (console.log("Error", err));
            }
            // Pass the Json as a parameter in this function
            ec2.authorizeSecurityGroupIngress(securityParams, function(err, data) {
                if (err) {
                    res.serverError(err, err.stack);
                } else {
                    res.ok(data);
                    console.log('Ingress Security Rules Created');
                }
            })
            // Pass the Json as a parameter in this function
            ec2.authorizeSecurityGroupEgress(securityParams, function(err, data) {
                if (err) {
                    res.serverError(err, err.stack);
                } else {
                    res.ok(data);
                    console.log('Egress Security Rules Created');
                }
            })
        })
    }
  }

I'm trying to have the script load configurations from two files; one aws credentials file, and one json. However its throwing errors on the credentials file which looks like this:

[default]
aws_access_key_id=**************
aws_secret_access_key**************

I'm not sure what I'm missing to get it to read the properties in correctly.

via user2019182