curl --request POST \
  --url https://api.hubapi.com/marketing/v3/marketing-events/batch/update \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "inputs": [
    {
      "customProperties": [
        {
          "isEncrypted": true,
          "isLargeValue": true,
          "maskedSubstrings": {
            "substrings": [
              {
                "end": 123,
                "label": "<string>",
                "start": 123
              }
            ]
          },
          "name": "<string>",
          "persistenceTimestamp": 123,
          "requestId": "<string>",
          "selectedByUser": true,
          "selectedByUserTimestamp": 123,
          "sourceId": "<string>",
          "sourceLabel": "<string>",
          "sourceMetadata": "<string>",
          "sourceUpstreamDeployable": "<string>",
          "sourceVid": [
            123
          ],
          "timestamp": 123,
          "unit": "<string>",
          "updatedByUserId": 123,
          "useTimestampAsPersistenceTimestamp": true,
          "value": "<string>"
        }
      ],
      "objectId": "<string>",
      "endDateTime": "2023-11-07T05:31:56Z",
      "eventCancelled": true,
      "eventDescription": "<string>",
      "eventName": "<string>",
      "eventOrganizer": "<string>",
      "eventType": "<string>",
      "eventUrl": "<string>",
      "startDateTime": "2023-11-07T05:31:56Z"
    }
  ]
}
'

import requests

url = "https://api.hubapi.com/marketing/v3/marketing-events/batch/update"

payload = { "inputs": [
        {
            "customProperties": [
                {
                    "isEncrypted": True,
                    "isLargeValue": True,
                    "maskedSubstrings": { "substrings": [
                            {
                                "end": 123,
                                "label": "<string>",
                                "start": 123
                            }
                        ] },
                    "name": "<string>",
                    "persistenceTimestamp": 123,
                    "requestId": "<string>",
                    "selectedByUser": True,
                    "selectedByUserTimestamp": 123,
                    "sourceId": "<string>",
                    "sourceLabel": "<string>",
                    "sourceMetadata": "<string>",
                    "sourceUpstreamDeployable": "<string>",
                    "sourceVid": [123],
                    "timestamp": 123,
                    "unit": "<string>",
                    "updatedByUserId": 123,
                    "useTimestampAsPersistenceTimestamp": True,
                    "value": "<string>"
                }
            ],
            "objectId": "<string>",
            "endDateTime": "2023-11-07T05:31:56Z",
            "eventCancelled": True,
            "eventDescription": "<string>",
            "eventName": "<string>",
            "eventOrganizer": "<string>",
            "eventType": "<string>",
            "eventUrl": "<string>",
            "startDateTime": "2023-11-07T05:31:56Z"
        }
    ] }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    inputs: [
      {
        customProperties: [
          {
            isEncrypted: true,
            isLargeValue: true,
            maskedSubstrings: {substrings: [{end: 123, label: '<string>', start: 123}]},
            name: '<string>',
            persistenceTimestamp: 123,
            requestId: '<string>',
            selectedByUser: true,
            selectedByUserTimestamp: 123,
            sourceId: '<string>',
            sourceLabel: '<string>',
            sourceMetadata: '<string>',
            sourceUpstreamDeployable: '<string>',
            sourceVid: [123],
            timestamp: 123,
            unit: '<string>',
            updatedByUserId: 123,
            useTimestampAsPersistenceTimestamp: true,
            value: '<string>'
          }
        ],
        objectId: '<string>',
        endDateTime: '2023-11-07T05:31:56Z',
        eventCancelled: true,
        eventDescription: '<string>',
        eventName: '<string>',
        eventOrganizer: '<string>',
        eventType: '<string>',
        eventUrl: '<string>',
        startDateTime: '2023-11-07T05:31:56Z'
      }
    ]
  })
};

fetch('https://api.hubapi.com/marketing/v3/marketing-events/batch/update', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.hubapi.com/marketing/v3/marketing-events/batch/update",
  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([
    'inputs' => [
        [
                'customProperties' => [
                                [
                                                                'isEncrypted' => true,
                                                                'isLargeValue' => true,
                                                                'maskedSubstrings' => [
                                                                                                                                'substrings' => [
                                                                                                                                                                                                                                                                [
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                'end' => 123,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                'label' => '<string>',
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                'start' => 123
                                                                                                                                                                                                                                                                ]
                                                                                                                                ]
                                                                ],
                                                                'name' => '<string>',
                                                                'persistenceTimestamp' => 123,
                                                                'requestId' => '<string>',
                                                                'selectedByUser' => true,
                                                                'selectedByUserTimestamp' => 123,
                                                                'sourceId' => '<string>',
                                                                'sourceLabel' => '<string>',
                                                                'sourceMetadata' => '<string>',
                                                                'sourceUpstreamDeployable' => '<string>',
                                                                'sourceVid' => [
                                                                                                                                123
                                                                ],
                                                                'timestamp' => 123,
                                                                'unit' => '<string>',
                                                                'updatedByUserId' => 123,
                                                                'useTimestampAsPersistenceTimestamp' => true,
                                                                'value' => '<string>'
                                ]
                ],
                'objectId' => '<string>',
                'endDateTime' => '2023-11-07T05:31:56Z',
                'eventCancelled' => true,
                'eventDescription' => '<string>',
                'eventName' => '<string>',
                'eventOrganizer' => '<string>',
                'eventType' => '<string>',
                'eventUrl' => '<string>',
                'startDateTime' => '2023-11-07T05:31:56Z'
        ]
    ]
  ]),
  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;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.hubapi.com/marketing/v3/marketing-events/batch/update"

	payload := strings.NewReader("{\n  \"inputs\": [\n    {\n      \"customProperties\": [\n        {\n          \"isEncrypted\": true,\n          \"isLargeValue\": true,\n          \"maskedSubstrings\": {\n            \"substrings\": [\n              {\n                \"end\": 123,\n                \"label\": \"<string>\",\n                \"start\": 123\n              }\n            ]\n          },\n          \"name\": \"<string>\",\n          \"persistenceTimestamp\": 123,\n          \"requestId\": \"<string>\",\n          \"selectedByUser\": true,\n          \"selectedByUserTimestamp\": 123,\n          \"sourceId\": \"<string>\",\n          \"sourceLabel\": \"<string>\",\n          \"sourceMetadata\": \"<string>\",\n          \"sourceUpstreamDeployable\": \"<string>\",\n          \"sourceVid\": [\n            123\n          ],\n          \"timestamp\": 123,\n          \"unit\": \"<string>\",\n          \"updatedByUserId\": 123,\n          \"useTimestampAsPersistenceTimestamp\": true,\n          \"value\": \"<string>\"\n        }\n      ],\n      \"objectId\": \"<string>\",\n      \"endDateTime\": \"2023-11-07T05:31:56Z\",\n      \"eventCancelled\": true,\n      \"eventDescription\": \"<string>\",\n      \"eventName\": \"<string>\",\n      \"eventOrganizer\": \"<string>\",\n      \"eventType\": \"<string>\",\n      \"eventUrl\": \"<string>\",\n      \"startDateTime\": \"2023-11-07T05:31:56Z\"\n    }\n  ]\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.hubapi.com/marketing/v3/marketing-events/batch/update")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"inputs\": [\n    {\n      \"customProperties\": [\n        {\n          \"isEncrypted\": true,\n          \"isLargeValue\": true,\n          \"maskedSubstrings\": {\n            \"substrings\": [\n              {\n                \"end\": 123,\n                \"label\": \"<string>\",\n                \"start\": 123\n              }\n            ]\n          },\n          \"name\": \"<string>\",\n          \"persistenceTimestamp\": 123,\n          \"requestId\": \"<string>\",\n          \"selectedByUser\": true,\n          \"selectedByUserTimestamp\": 123,\n          \"sourceId\": \"<string>\",\n          \"sourceLabel\": \"<string>\",\n          \"sourceMetadata\": \"<string>\",\n          \"sourceUpstreamDeployable\": \"<string>\",\n          \"sourceVid\": [\n            123\n          ],\n          \"timestamp\": 123,\n          \"unit\": \"<string>\",\n          \"updatedByUserId\": 123,\n          \"useTimestampAsPersistenceTimestamp\": true,\n          \"value\": \"<string>\"\n        }\n      ],\n      \"objectId\": \"<string>\",\n      \"endDateTime\": \"2023-11-07T05:31:56Z\",\n      \"eventCancelled\": true,\n      \"eventDescription\": \"<string>\",\n      \"eventName\": \"<string>\",\n      \"eventOrganizer\": \"<string>\",\n      \"eventType\": \"<string>\",\n      \"eventUrl\": \"<string>\",\n      \"startDateTime\": \"2023-11-07T05:31:56Z\"\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.hubapi.com/marketing/v3/marketing-events/batch/update")

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  \"inputs\": [\n    {\n      \"customProperties\": [\n        {\n          \"isEncrypted\": true,\n          \"isLargeValue\": true,\n          \"maskedSubstrings\": {\n            \"substrings\": [\n              {\n                \"end\": 123,\n                \"label\": \"<string>\",\n                \"start\": 123\n              }\n            ]\n          },\n          \"name\": \"<string>\",\n          \"persistenceTimestamp\": 123,\n          \"requestId\": \"<string>\",\n          \"selectedByUser\": true,\n          \"selectedByUserTimestamp\": 123,\n          \"sourceId\": \"<string>\",\n          \"sourceLabel\": \"<string>\",\n          \"sourceMetadata\": \"<string>\",\n          \"sourceUpstreamDeployable\": \"<string>\",\n          \"sourceVid\": [\n            123\n          ],\n          \"timestamp\": 123,\n          \"unit\": \"<string>\",\n          \"updatedByUserId\": 123,\n          \"useTimestampAsPersistenceTimestamp\": true,\n          \"value\": \"<string>\"\n        }\n      ],\n      \"objectId\": \"<string>\",\n      \"endDateTime\": \"2023-11-07T05:31:56Z\",\n      \"eventCancelled\": true,\n      \"eventDescription\": \"<string>\",\n      \"eventName\": \"<string>\",\n      \"eventOrganizer\": \"<string>\",\n      \"eventType\": \"<string>\",\n      \"eventUrl\": \"<string>\",\n      \"startDateTime\": \"2023-11-07T05:31:56Z\"\n    }\n  ]\n}"

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

{
  "completedAt": "2023-11-07T05:31:56Z",
  "results": [
    {
      "createdAt": "2023-11-07T05:31:56Z",
      "customProperties": [
        {
          "name": "<string>",
          "value": "<string>"
        }
      ],
      "eventName": "<string>",
      "objectId": "<string>",
      "updatedAt": "2023-11-07T05:31:56Z",
      "appInfo": {
        "id": "<string>",
        "name": "<string>"
      },
      "endDateTime": "2023-11-07T05:31:56Z",
      "eventCancelled": true,
      "eventCompleted": true,
      "eventDescription": "<string>",
      "eventOrganizer": "<string>",
      "eventType": "<string>",
      "eventUrl": "<string>",
      "startDateTime": "2023-11-07T05:31:56Z"
    }
  ],
  "startedAt": "2023-11-07T05:31:56Z",
  "status": "CANCELED",
  "links": {},
  "requestedAt": "2023-11-07T05:31:56Z"
}

{
  "completedAt": "2023-11-07T05:31:56Z",
  "results": [
    {
      "createdAt": "2023-11-07T05:31:56Z",
      "customProperties": [
        {
          "name": "<string>",
          "value": "<string>"
        }
      ],
      "eventName": "<string>",
      "objectId": "<string>",
      "updatedAt": "2023-11-07T05:31:56Z",
      "appInfo": {
        "id": "<string>",
        "name": "<string>"
      },
      "endDateTime": "2023-11-07T05:31:56Z",
      "eventCancelled": true,
      "eventCompleted": true,
      "eventDescription": "<string>",
      "eventOrganizer": "<string>",
      "eventType": "<string>",
      "eventUrl": "<string>",
      "startDateTime": "2023-11-07T05:31:56Z"
    }
  ],
  "startedAt": "2023-11-07T05:31:56Z",
  "status": "CANCELED",
  "errors": [
    {
      "category": "<string>",
      "context": {},
      "errors": [
        {
          "message": "<string>",
          "code": "<string>",
          "context": "{missingScopes=[scope1, scope2]}",
          "in": "<string>",
          "subCategory": "<string>"
        }
      ],
      "links": {},
      "message": "<string>",
      "status": "<string>",
      "id": "<string>",
      "subCategory": {}
    }
  ],
  "links": {},
  "numErrors": 123,
  "requestedAt": "2023-11-07T05:31:56Z"
}

{
  "message": "Invalid input (details will vary based on the error)",
  "correlationId": "aeb5f871-7f07-4993-9211-075dc63e7cbf",
  "category": "VALIDATION_ERROR",
  "links": {
    "knowledge-base": "https://www.hubspot.com/products/service/knowledge-base"
  }
}