curl --request POST \
  --url https://api.virtuoussoftware.com/api/Contact/Batch \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "referenceSource": "<string>",
  "contacts": [
    {
      "referenceId": "<string>",
      "contactType": "<string>",
      "name": "<string>",
      "title": "<string>",
      "firstName": "<string>",
      "middleName": "<string>",
      "lastName": "<string>",
      "suffix": "<string>",
      "emailType": "<string>",
      "email": "<string>",
      "phoneType": "<string>",
      "phone": "<string>",
      "address1": "<string>",
      "address2": "<string>",
      "city": "<string>",
      "state": "<string>",
      "postal": "<string>",
      "country": "<string>",
      "eventId": "<integer>",
      "eventName": "<string>",
      "invited": "<boolean>",
      "rsvp": "<boolean>",
      "rsvpResponse": "<boolean>",
      "attended": "<boolean>",
      "tags": "<string>",
      "originSegmentCode": "<string>",
      "emailLists": [
        "<string>",
        "<string>"
      ],
      "customFields": "<object>",
      "volunteerAttendances": [
        {
          "volunteerOpportunityId": "<integer>",
          "volunteerOpportunityName": "<string>",
          "date": "<string>",
          "hours": "<string>"
        },
        {
          "volunteerOpportunityId": "<integer>",
          "volunteerOpportunityName": "<string>",
          "date": "<string>",
          "hours": "<string>"
        }
      ]
    },
    {
      "referenceId": "<string>",
      "contactType": "<string>",
      "name": "<string>",
      "title": "<string>",
      "firstName": "<string>",
      "middleName": "<string>",
      "lastName": "<string>",
      "suffix": "<string>",
      "emailType": "<string>",
      "email": "<string>",
      "phoneType": "<string>",
      "phone": "<string>",
      "address1": "<string>",
      "address2": "<string>",
      "city": "<string>",
      "state": "<string>",
      "postal": "<string>",
      "country": "<string>",
      "eventId": "<integer>",
      "eventName": "<string>",
      "invited": "<boolean>",
      "rsvp": "<boolean>",
      "rsvpResponse": "<boolean>",
      "attended": "<boolean>",
      "tags": "<string>",
      "originSegmentCode": "<string>",
      "emailLists": [
        "<string>",
        "<string>"
      ],
      "customFields": "<object>",
      "volunteerAttendances": [
        {
          "volunteerOpportunityId": "<integer>",
          "volunteerOpportunityName": "<string>",
          "date": "<string>",
          "hours": "<string>"
        },
        {
          "volunteerOpportunityId": "<integer>",
          "volunteerOpportunityName": "<string>",
          "date": "<string>",
          "hours": "<string>"
        }
      ]
    }
  ]
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    referenceSource: '<string>',
    contacts: [
      {
        referenceId: '<string>',
        contactType: '<string>',
        name: '<string>',
        title: '<string>',
        firstName: '<string>',
        middleName: '<string>',
        lastName: '<string>',
        suffix: '<string>',
        emailType: '<string>',
        email: '<string>',
        phoneType: '<string>',
        phone: '<string>',
        address1: '<string>',
        address2: '<string>',
        city: '<string>',
        state: '<string>',
        postal: '<string>',
        country: '<string>',
        eventId: '<integer>',
        eventName: '<string>',
        invited: '<boolean>',
        rsvp: '<boolean>',
        rsvpResponse: '<boolean>',
        attended: '<boolean>',
        tags: '<string>',
        originSegmentCode: '<string>',
        emailLists: ['<string>', '<string>'],
        customFields: '<object>',
        volunteerAttendances: [
          {
            volunteerOpportunityId: '<integer>',
            volunteerOpportunityName: '<string>',
            date: '<string>',
            hours: '<string>'
          },
          {
            volunteerOpportunityId: '<integer>',
            volunteerOpportunityName: '<string>',
            date: '<string>',
            hours: '<string>'
          }
        ]
      },
      {
        referenceId: '<string>',
        contactType: '<string>',
        name: '<string>',
        title: '<string>',
        firstName: '<string>',
        middleName: '<string>',
        lastName: '<string>',
        suffix: '<string>',
        emailType: '<string>',
        email: '<string>',
        phoneType: '<string>',
        phone: '<string>',
        address1: '<string>',
        address2: '<string>',
        city: '<string>',
        state: '<string>',
        postal: '<string>',
        country: '<string>',
        eventId: '<integer>',
        eventName: '<string>',
        invited: '<boolean>',
        rsvp: '<boolean>',
        rsvpResponse: '<boolean>',
        attended: '<boolean>',
        tags: '<string>',
        originSegmentCode: '<string>',
        emailLists: ['<string>', '<string>'],
        customFields: '<object>',
        volunteerAttendances: [
          {
            volunteerOpportunityId: '<integer>',
            volunteerOpportunityName: '<string>',
            date: '<string>',
            hours: '<string>'
          },
          {
            volunteerOpportunityId: '<integer>',
            volunteerOpportunityName: '<string>',
            date: '<string>',
            hours: '<string>'
          }
        ]
      }
    ]
  })
};

fetch('https://api.virtuoussoftware.com/api/Contact/Batch', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.virtuoussoftware.com/api/Contact/Batch"

payload = {
    "referenceSource": "<string>",
    "contacts": [
        {
            "referenceId": "<string>",
            "contactType": "<string>",
            "name": "<string>",
            "title": "<string>",
            "firstName": "<string>",
            "middleName": "<string>",
            "lastName": "<string>",
            "suffix": "<string>",
            "emailType": "<string>",
            "email": "<string>",
            "phoneType": "<string>",
            "phone": "<string>",
            "address1": "<string>",
            "address2": "<string>",
            "city": "<string>",
            "state": "<string>",
            "postal": "<string>",
            "country": "<string>",
            "eventId": "<integer>",
            "eventName": "<string>",
            "invited": "<boolean>",
            "rsvp": "<boolean>",
            "rsvpResponse": "<boolean>",
            "attended": "<boolean>",
            "tags": "<string>",
            "originSegmentCode": "<string>",
            "emailLists": ["<string>", "<string>"],
            "customFields": "<object>",
            "volunteerAttendances": [
                {
                    "volunteerOpportunityId": "<integer>",
                    "volunteerOpportunityName": "<string>",
                    "date": "<string>",
                    "hours": "<string>"
                },
                {
                    "volunteerOpportunityId": "<integer>",
                    "volunteerOpportunityName": "<string>",
                    "date": "<string>",
                    "hours": "<string>"
                }
            ]
        },
        {
            "referenceId": "<string>",
            "contactType": "<string>",
            "name": "<string>",
            "title": "<string>",
            "firstName": "<string>",
            "middleName": "<string>",
            "lastName": "<string>",
            "suffix": "<string>",
            "emailType": "<string>",
            "email": "<string>",
            "phoneType": "<string>",
            "phone": "<string>",
            "address1": "<string>",
            "address2": "<string>",
            "city": "<string>",
            "state": "<string>",
            "postal": "<string>",
            "country": "<string>",
            "eventId": "<integer>",
            "eventName": "<string>",
            "invited": "<boolean>",
            "rsvp": "<boolean>",
            "rsvpResponse": "<boolean>",
            "attended": "<boolean>",
            "tags": "<string>",
            "originSegmentCode": "<string>",
            "emailLists": ["<string>", "<string>"],
            "customFields": "<object>",
            "volunteerAttendances": [
                {
                    "volunteerOpportunityId": "<integer>",
                    "volunteerOpportunityName": "<string>",
                    "date": "<string>",
                    "hours": "<string>"
                },
                {
                    "volunteerOpportunityId": "<integer>",
                    "volunteerOpportunityName": "<string>",
                    "date": "<string>",
                    "hours": "<string>"
                }
            ]
        }
    ]
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

using RestSharp;


var options = new RestClientOptions("https://api.virtuoussoftware.com/api/Contact/Batch");
var client = new RestClient(options);
var request = new RestRequest("");
request.AddHeader("Authorization", "Bearer <token>");
request.AddJsonBody("{\n  \"referenceSource\": \"<string>\",\n  \"contacts\": [\n    {\n      \"referenceId\": \"<string>\",\n      \"contactType\": \"<string>\",\n      \"name\": \"<string>\",\n      \"title\": \"<string>\",\n      \"firstName\": \"<string>\",\n      \"middleName\": \"<string>\",\n      \"lastName\": \"<string>\",\n      \"suffix\": \"<string>\",\n      \"emailType\": \"<string>\",\n      \"email\": \"<string>\",\n      \"phoneType\": \"<string>\",\n      \"phone\": \"<string>\",\n      \"address1\": \"<string>\",\n      \"address2\": \"<string>\",\n      \"city\": \"<string>\",\n      \"state\": \"<string>\",\n      \"postal\": \"<string>\",\n      \"country\": \"<string>\",\n      \"eventId\": \"<integer>\",\n      \"eventName\": \"<string>\",\n      \"invited\": \"<boolean>\",\n      \"rsvp\": \"<boolean>\",\n      \"rsvpResponse\": \"<boolean>\",\n      \"attended\": \"<boolean>\",\n      \"tags\": \"<string>\",\n      \"originSegmentCode\": \"<string>\",\n      \"emailLists\": [\n        \"<string>\",\n        \"<string>\"\n      ],\n      \"customFields\": \"<object>\",\n      \"volunteerAttendances\": [\n        {\n          \"volunteerOpportunityId\": \"<integer>\",\n          \"volunteerOpportunityName\": \"<string>\",\n          \"date\": \"<string>\",\n          \"hours\": \"<string>\"\n        },\n        {\n          \"volunteerOpportunityId\": \"<integer>\",\n          \"volunteerOpportunityName\": \"<string>\",\n          \"date\": \"<string>\",\n          \"hours\": \"<string>\"\n        }\n      ]\n    },\n    {\n      \"referenceId\": \"<string>\",\n      \"contactType\": \"<string>\",\n      \"name\": \"<string>\",\n      \"title\": \"<string>\",\n      \"firstName\": \"<string>\",\n      \"middleName\": \"<string>\",\n      \"lastName\": \"<string>\",\n      \"suffix\": \"<string>\",\n      \"emailType\": \"<string>\",\n      \"email\": \"<string>\",\n      \"phoneType\": \"<string>\",\n      \"phone\": \"<string>\",\n      \"address1\": \"<string>\",\n      \"address2\": \"<string>\",\n      \"city\": \"<string>\",\n      \"state\": \"<string>\",\n      \"postal\": \"<string>\",\n      \"country\": \"<string>\",\n      \"eventId\": \"<integer>\",\n      \"eventName\": \"<string>\",\n      \"invited\": \"<boolean>\",\n      \"rsvp\": \"<boolean>\",\n      \"rsvpResponse\": \"<boolean>\",\n      \"attended\": \"<boolean>\",\n      \"tags\": \"<string>\",\n      \"originSegmentCode\": \"<string>\",\n      \"emailLists\": [\n        \"<string>\",\n        \"<string>\"\n      ],\n      \"customFields\": \"<object>\",\n      \"volunteerAttendances\": [\n        {\n          \"volunteerOpportunityId\": \"<integer>\",\n          \"volunteerOpportunityName\": \"<string>\",\n          \"date\": \"<string>\",\n          \"hours\": \"<string>\"\n        },\n        {\n          \"volunteerOpportunityId\": \"<integer>\",\n          \"volunteerOpportunityName\": \"<string>\",\n          \"date\": \"<string>\",\n          \"hours\": \"<string>\"\n        }\n      ]\n    }\n  ]\n}", false);
var response = await client.PostAsync(request);

Console.WriteLine("{0}", response.Content);

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.virtuoussoftware.com/api/Contact/Batch",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'referenceSource' => '<string>',
    'contacts' => [
        [
                'referenceId' => '<string>',
                'contactType' => '<string>',
                'name' => '<string>',
                'title' => '<string>',
                'firstName' => '<string>',
                'middleName' => '<string>',
                'lastName' => '<string>',
                'suffix' => '<string>',
                'emailType' => '<string>',
                'email' => '<string>',
                'phoneType' => '<string>',
                'phone' => '<string>',
                'address1' => '<string>',
                'address2' => '<string>',
                'city' => '<string>',
                'state' => '<string>',
                'postal' => '<string>',
                'country' => '<string>',
                'eventId' => '<integer>',
                'eventName' => '<string>',
                'invited' => '<boolean>',
                'rsvp' => '<boolean>',
                'rsvpResponse' => '<boolean>',
                'attended' => '<boolean>',
                'tags' => '<string>',
                'originSegmentCode' => '<string>',
                'emailLists' => [
                                '<string>',
                                '<string>'
                ],
                'customFields' => '<object>',
                'volunteerAttendances' => [
                                [
                                                                'volunteerOpportunityId' => '<integer>',
                                                                'volunteerOpportunityName' => '<string>',
                                                                'date' => '<string>',
                                                                'hours' => '<string>'
                                ],
                                [
                                                                'volunteerOpportunityId' => '<integer>',
                                                                'volunteerOpportunityName' => '<string>',
                                                                'date' => '<string>',
                                                                'hours' => '<string>'
                                ]
                ]
        ],
        [
                'referenceId' => '<string>',
                'contactType' => '<string>',
                'name' => '<string>',
                'title' => '<string>',
                'firstName' => '<string>',
                'middleName' => '<string>',
                'lastName' => '<string>',
                'suffix' => '<string>',
                'emailType' => '<string>',
                'email' => '<string>',
                'phoneType' => '<string>',
                'phone' => '<string>',
                'address1' => '<string>',
                'address2' => '<string>',
                'city' => '<string>',
                'state' => '<string>',
                'postal' => '<string>',
                'country' => '<string>',
                'eventId' => '<integer>',
                'eventName' => '<string>',
                'invited' => '<boolean>',
                'rsvp' => '<boolean>',
                'rsvpResponse' => '<boolean>',
                'attended' => '<boolean>',
                'tags' => '<string>',
                'originSegmentCode' => '<string>',
                'emailLists' => [
                                '<string>',
                                '<string>'
                ],
                'customFields' => '<object>',
                'volunteerAttendances' => [
                                [
                                                                'volunteerOpportunityId' => '<integer>',
                                                                'volunteerOpportunityName' => '<string>',
                                                                'date' => '<string>',
                                                                'hours' => '<string>'
                                ],
                                [
                                                                'volunteerOpportunityId' => '<integer>',
                                                                'volunteerOpportunityName' => '<string>',
                                                                'date' => '<string>',
                                                                'hours' => '<string>'
                                ]
                ]
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

HttpResponse<String> response = Unirest.post("https://api.virtuoussoftware.com/api/Contact/Batch")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"referenceSource\": \"<string>\",\n  \"contacts\": [\n    {\n      \"referenceId\": \"<string>\",\n      \"contactType\": \"<string>\",\n      \"name\": \"<string>\",\n      \"title\": \"<string>\",\n      \"firstName\": \"<string>\",\n      \"middleName\": \"<string>\",\n      \"lastName\": \"<string>\",\n      \"suffix\": \"<string>\",\n      \"emailType\": \"<string>\",\n      \"email\": \"<string>\",\n      \"phoneType\": \"<string>\",\n      \"phone\": \"<string>\",\n      \"address1\": \"<string>\",\n      \"address2\": \"<string>\",\n      \"city\": \"<string>\",\n      \"state\": \"<string>\",\n      \"postal\": \"<string>\",\n      \"country\": \"<string>\",\n      \"eventId\": \"<integer>\",\n      \"eventName\": \"<string>\",\n      \"invited\": \"<boolean>\",\n      \"rsvp\": \"<boolean>\",\n      \"rsvpResponse\": \"<boolean>\",\n      \"attended\": \"<boolean>\",\n      \"tags\": \"<string>\",\n      \"originSegmentCode\": \"<string>\",\n      \"emailLists\": [\n        \"<string>\",\n        \"<string>\"\n      ],\n      \"customFields\": \"<object>\",\n      \"volunteerAttendances\": [\n        {\n          \"volunteerOpportunityId\": \"<integer>\",\n          \"volunteerOpportunityName\": \"<string>\",\n          \"date\": \"<string>\",\n          \"hours\": \"<string>\"\n        },\n        {\n          \"volunteerOpportunityId\": \"<integer>\",\n          \"volunteerOpportunityName\": \"<string>\",\n          \"date\": \"<string>\",\n          \"hours\": \"<string>\"\n        }\n      ]\n    },\n    {\n      \"referenceId\": \"<string>\",\n      \"contactType\": \"<string>\",\n      \"name\": \"<string>\",\n      \"title\": \"<string>\",\n      \"firstName\": \"<string>\",\n      \"middleName\": \"<string>\",\n      \"lastName\": \"<string>\",\n      \"suffix\": \"<string>\",\n      \"emailType\": \"<string>\",\n      \"email\": \"<string>\",\n      \"phoneType\": \"<string>\",\n      \"phone\": \"<string>\",\n      \"address1\": \"<string>\",\n      \"address2\": \"<string>\",\n      \"city\": \"<string>\",\n      \"state\": \"<string>\",\n      \"postal\": \"<string>\",\n      \"country\": \"<string>\",\n      \"eventId\": \"<integer>\",\n      \"eventName\": \"<string>\",\n      \"invited\": \"<boolean>\",\n      \"rsvp\": \"<boolean>\",\n      \"rsvpResponse\": \"<boolean>\",\n      \"attended\": \"<boolean>\",\n      \"tags\": \"<string>\",\n      \"originSegmentCode\": \"<string>\",\n      \"emailLists\": [\n        \"<string>\",\n        \"<string>\"\n      ],\n      \"customFields\": \"<object>\",\n      \"volunteerAttendances\": [\n        {\n          \"volunteerOpportunityId\": \"<integer>\",\n          \"volunteerOpportunityName\": \"<string>\",\n          \"date\": \"<string>\",\n          \"hours\": \"<string>\"\n        },\n        {\n          \"volunteerOpportunityId\": \"<integer>\",\n          \"volunteerOpportunityName\": \"<string>\",\n          \"date\": \"<string>\",\n          \"hours\": \"<string>\"\n        }\n      ]\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.virtuoussoftware.com/api/Contact/Batch")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"referenceSource\": \"<string>\",\n  \"contacts\": [\n    {\n      \"referenceId\": \"<string>\",\n      \"contactType\": \"<string>\",\n      \"name\": \"<string>\",\n      \"title\": \"<string>\",\n      \"firstName\": \"<string>\",\n      \"middleName\": \"<string>\",\n      \"lastName\": \"<string>\",\n      \"suffix\": \"<string>\",\n      \"emailType\": \"<string>\",\n      \"email\": \"<string>\",\n      \"phoneType\": \"<string>\",\n      \"phone\": \"<string>\",\n      \"address1\": \"<string>\",\n      \"address2\": \"<string>\",\n      \"city\": \"<string>\",\n      \"state\": \"<string>\",\n      \"postal\": \"<string>\",\n      \"country\": \"<string>\",\n      \"eventId\": \"<integer>\",\n      \"eventName\": \"<string>\",\n      \"invited\": \"<boolean>\",\n      \"rsvp\": \"<boolean>\",\n      \"rsvpResponse\": \"<boolean>\",\n      \"attended\": \"<boolean>\",\n      \"tags\": \"<string>\",\n      \"originSegmentCode\": \"<string>\",\n      \"emailLists\": [\n        \"<string>\",\n        \"<string>\"\n      ],\n      \"customFields\": \"<object>\",\n      \"volunteerAttendances\": [\n        {\n          \"volunteerOpportunityId\": \"<integer>\",\n          \"volunteerOpportunityName\": \"<string>\",\n          \"date\": \"<string>\",\n          \"hours\": \"<string>\"\n        },\n        {\n          \"volunteerOpportunityId\": \"<integer>\",\n          \"volunteerOpportunityName\": \"<string>\",\n          \"date\": \"<string>\",\n          \"hours\": \"<string>\"\n        }\n      ]\n    },\n    {\n      \"referenceId\": \"<string>\",\n      \"contactType\": \"<string>\",\n      \"name\": \"<string>\",\n      \"title\": \"<string>\",\n      \"firstName\": \"<string>\",\n      \"middleName\": \"<string>\",\n      \"lastName\": \"<string>\",\n      \"suffix\": \"<string>\",\n      \"emailType\": \"<string>\",\n      \"email\": \"<string>\",\n      \"phoneType\": \"<string>\",\n      \"phone\": \"<string>\",\n      \"address1\": \"<string>\",\n      \"address2\": \"<string>\",\n      \"city\": \"<string>\",\n      \"state\": \"<string>\",\n      \"postal\": \"<string>\",\n      \"country\": \"<string>\",\n      \"eventId\": \"<integer>\",\n      \"eventName\": \"<string>\",\n      \"invited\": \"<boolean>\",\n      \"rsvp\": \"<boolean>\",\n      \"rsvpResponse\": \"<boolean>\",\n      \"attended\": \"<boolean>\",\n      \"tags\": \"<string>\",\n      \"originSegmentCode\": \"<string>\",\n      \"emailLists\": [\n        \"<string>\",\n        \"<string>\"\n      ],\n      \"customFields\": \"<object>\",\n      \"volunteerAttendances\": [\n        {\n          \"volunteerOpportunityId\": \"<integer>\",\n          \"volunteerOpportunityName\": \"<string>\",\n          \"date\": \"<string>\",\n          \"hours\": \"<string>\"\n        },\n        {\n          \"volunteerOpportunityId\": \"<integer>\",\n          \"volunteerOpportunityName\": \"<string>\",\n          \"date\": \"<string>\",\n          \"hours\": \"<string>\"\n        }\n      ]\n    }\n  ]\n}"

response = http.request(request)
puts response.read_body

const url = 'https://api.virtuoussoftware.com/api/Contact/Batch';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    referenceSource: '<string>',
    contacts: [
      {
        referenceId: '<string>',
        contactType: '<string>',
        name: '<string>',
        title: '<string>',
        firstName: '<string>',
        middleName: '<string>',
        lastName: '<string>',
        suffix: '<string>',
        emailType: '<string>',
        email: '<string>',
        phoneType: '<string>',
        phone: '<string>',
        address1: '<string>',
        address2: '<string>',
        city: '<string>',
        state: '<string>',
        postal: '<string>',
        country: '<string>',
        eventId: '<integer>',
        eventName: '<string>',
        invited: '<boolean>',
        rsvp: '<boolean>',
        rsvpResponse: '<boolean>',
        attended: '<boolean>',
        tags: '<string>',
        originSegmentCode: '<string>',
        emailLists: ['<string>', '<string>'],
        customFields: '<object>',
        volunteerAttendances: [
          {
            volunteerOpportunityId: '<integer>',
            volunteerOpportunityName: '<string>',
            date: '<string>',
            hours: '<string>'
          },
          {
            volunteerOpportunityId: '<integer>',
            volunteerOpportunityName: '<string>',
            date: '<string>',
            hours: '<string>'
          }
        ]
      },
      {
        referenceId: '<string>',
        contactType: '<string>',
        name: '<string>',
        title: '<string>',
        firstName: '<string>',
        middleName: '<string>',
        lastName: '<string>',
        suffix: '<string>',
        emailType: '<string>',
        email: '<string>',
        phoneType: '<string>',
        phone: '<string>',
        address1: '<string>',
        address2: '<string>',
        city: '<string>',
        state: '<string>',
        postal: '<string>',
        country: '<string>',
        eventId: '<integer>',
        eventName: '<string>',
        invited: '<boolean>',
        rsvp: '<boolean>',
        rsvpResponse: '<boolean>',
        attended: '<boolean>',
        tags: '<string>',
        originSegmentCode: '<string>',
        emailLists: ['<string>', '<string>'],
        customFields: '<object>',
        volunteerAttendances: [
          {
            volunteerOpportunityId: '<integer>',
            volunteerOpportunityName: '<string>',
            date: '<string>',
            hours: '<string>'
          },
          {
            volunteerOpportunityId: '<integer>',
            volunteerOpportunityName: '<string>',
            date: '<string>',
            hours: '<string>'
          }
        ]
      }
    ]
  })
};

fetch(url, options)
  .then(res => res.json())
  .then(json => console.log(json))
  .catch(err => console.error(err));

{
  "message": "Authorization has been denied for this request."
}

{
  "message": "You do not have permission to perform this action."
}

{
  "message": "Rate limit exceeded. Try again later."
}