> ## Documentation Index
> Fetch the complete documentation index at: https://help.dingtalk.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Set the response status of an event invitation

> Call this API to set the current user's response status for a specified event invitation, with full request and response field references.

Call this API to set the response status of an event invitation.

## Request

### Basic information

| Field                | Value                                                                                                  |
| -------------------- | ------------------------------------------------------------------------------------------------------ |
| HTTP URL             | `https://api.dingtalk.io/v1.0/calendar/users/{userId}/calendars/{calendarId}/events/{eventId}/respond` |
| HTTP Method          | POST                                                                                                   |
| Supported app types  | appType-Internal app　appType-Third-party enterprise app　appType-Third-party personal app               |
| Required permissions | permission-Calendar.Event.Write-Write permission for events in the Calendar app                        |

### Request header

| Name                        | Type   | Required | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| --------------------------- | ------ | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| x-acs-dingtalk-access-token | String | Yes      | The access credential for calling this API. Obtain it as follows:   - For an internal app, call the [Obtain the access token of an internal app](/open/development/obtain-the-access-token-of-an-internal-app#) API. - For a third-party enterprise app, call the [Obtain the access token of an enterprise authorized to use a third-party app](https://open.dingtalk.com/document/development/obtain-the-access-token-of-the-authorized-enterprise-1#) API. - For a third-party personal app, call the [Obtain a user token](/open/development/obtain-user-token#) API. |

### Path parameters

| Name       | Type   | Required | Description                                                                                                                                                                                                                                                                                                                                                                                              |
| ---------- | ------ | -------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| userId     | String | Yes      | The unionId of the event attendee.   - For an internal app or third-party enterprise app, call the [Query user details](/open/development/query-user-details#) API to obtain the value of the unionid parameter. - For a third-party personal app, call the [Obtain user profile from Contacts](/open/development/dingtalk-retrieve-user-information#) API to obtain the value of the unionId parameter. |
| calendarId | String | Yes      | The ID of the calendar to which the event belongs. The value is fixed to primary, which indicates the user's primary calendar.                                                                                                                                                                                                                                                                           |
| eventId    | String | Yes      | The event ID. Call the [Query an event list](/open/development/query-an-event-list#) API to obtain the value of the id parameter.                                                                                                                                                                                                                                                                        |

### Request body

| Name           | Type   | Required | Description                                                                                                                                                        |
| -------------- | ------ | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| responseStatus | String | Yes      | The response status. Valid values:   - **needsAction** (default): No action taken. - **accepted**: Accepted. - **declined**: Declined. - **tentative**: Tentative. |

### Request example

HTTP

```http theme={"theme":{"light":"github-light","dark":"github-dark"}}
POST /v1.0/calendar/users/iiiP35sJadba8aBSgjrwPRKgiEiF/calendars/primary/events/cnNTbW1YbU9sL2p6aFJZdEgvdlQrQT09/respond HTTP/1.1
Host:api.dingtalk.io
x-acs-dingtalk-access-token:dd43888e26953deead8cba556389b064
Content-Type:application/json

{
  "responseStatus" : "accepted"
}
```

Java

```java theme={"theme":{"light":"github-light","dark":"github-dark"}}
// This file is auto-generated, don't edit it. Thanks.
package com.aliyun.sample;

import com.aliyun.tea.*;
import com.aliyun.teautil.*;
import com.aliyun.teautil.models.*;
import com.aliyun.dingtalkcalendar_1_0.*;
import com.aliyun.dingtalkcalendar_1_0.models.*;
import com.aliyun.teaopenapi.*;
import com.aliyun.teaopenapi.models.*;

public class Sample {

    /**
     * Initialize the account client using a token
     * @return Client
     * @throws Exception
     */
    public static com.aliyun.dingtalkcalendar_1_0.Client createClient() throws Exception {
        Config config = new Config();
        config.protocol = "https";
        config.regionId = "central";
        return new com.aliyun.dingtalkcalendar_1_0.Client(config);
    }

    public static void main(String[] args_) throws Exception {
        java.util.List<String> args = java.util.Arrays.asList(args_);
        com.aliyun.dingtalkcalendar_1_0.Client client = Sample.createClient();
        RespondEventHeaders respondEventHeaders = new RespondEventHeaders();
        respondEventHeaders.xAcsDingtalkAccessToken = "<your access token>";
        RespondEventRequest respondEventRequest = new RespondEventRequest()
                .setResponseStatus("accepted");
        try {
            client.respondEventWithOptions("iiiP35sJadba8aBSgjrwPRKgiEiF", "primary", "cnNTbW1YbU9sL2p6aFJZdEgvdlQrQT09", respondEventRequest, respondEventHeaders, new RuntimeOptions());
        } catch (TeaException err) {
            if (!com.aliyun.teautil.Common.empty(err.code) && !com.aliyun.teautil.Common.empty(err.message)) {
                // err contains code and message attributes that help locate the issue
            }

        } catch (Exception _err) {
            TeaException err = new TeaException(_err.getMessage(), _err);
            if (!com.aliyun.teautil.Common.empty(err.code) && !com.aliyun.teautil.Common.empty(err.message)) {
                // err contains code and message attributes that help locate the issue
            }

        }        
    }
}
```

Python

```python theme={"theme":{"light":"github-light","dark":"github-dark"}}
# -*- coding: utf-8 -*-
# This file is auto-generated, don't edit it. Thanks.
import sys

from typing import List

from alibabacloud_dingtalk.calendar_1_0.client import Client as dingtalkcalendar_1_0Client
from alibabacloud_tea_openapi import models as open_api_models
from alibabacloud_dingtalk.calendar_1_0 import models as dingtalkcalendar__1__0_models
from alibabacloud_tea_util import models as util_models
from alibabacloud_tea_util.client import Client as UtilClient

class Sample:
    def __init__(self):
        pass

    @staticmethod
    def create_client() -> dingtalkcalendar_1_0Client:
        """
        Initialize the account client using a token
        @return: Client
        @throws Exception
        """
        config = open_api_models.Config()
        config.protocol = 'https'
        config.region_id = 'central'
        return dingtalkcalendar_1_0Client(config)

    @staticmethod
    def main(
        args: List[str],
    ) -> None:
        client = Sample.create_client()
        respond_event_headers = dingtalkcalendar__1__0_models.RespondEventHeaders()
        respond_event_headers.x_acs_dingtalk_access_token = '<your access token>'
        respond_event_request = dingtalkcalendar__1__0_models.RespondEventRequest(
            response_status='accepted'
        )
        try:
            client.respond_event_with_options('iiiP35sJadba8aBSgjrwPRKgiEiF', 'primary', 'cnNTbW1YbU9sL2p6aFJZdEgvdlQrQT09', respond_event_request, respond_event_headers, util_models.RuntimeOptions())
        except Exception as err:
            if not UtilClient.empty(err.code) and not UtilClient.empty(err.message):
                # err contains code and message attributes that help locate the issue
                pass

    @staticmethod
    async def main_async(
        args: List[str],
    ) -> None:
        client = Sample.create_client()
        respond_event_headers = dingtalkcalendar__1__0_models.RespondEventHeaders()
        respond_event_headers.x_acs_dingtalk_access_token = '<your access token>'
        respond_event_request = dingtalkcalendar__1__0_models.RespondEventRequest(
            response_status='accepted'
        )
        try:
            await client.respond_event_with_options_async('iiiP35sJadba8aBSgjrwPRKgiEiF', 'primary', 'cnNTbW1YbU9sL2p6aFJZdEgvdlQrQT09', respond_event_request, respond_event_headers, util_models.RuntimeOptions())
        except Exception as err:
            if not UtilClient.empty(err.code) and not UtilClient.empty(err.message):
                # err contains code and message attributes that help locate the issue
                pass

if __name__ == '__main__':
    Sample.main(sys.argv[1:])
```

PHP

```java theme={"theme":{"light":"github-light","dark":"github-dark"}}
<?php

// This file is auto-generated, don't edit it. Thanks.
namespace AlibabaCloud\SDK\Sample;

use AlibabaCloud\SDK\Dingtalk\Vcalendar_1_0\Dingtalk;
use \Exception;
use AlibabaCloud\Tea\Exception\TeaError;
use AlibabaCloud\Tea\Utils\Utils;

use Darabonba\OpenApi\Models\Config;
use AlibabaCloud\SDK\Dingtalk\Vcalendar_1_0\Models\RespondEventHeaders;
use AlibabaCloud\SDK\Dingtalk\Vcalendar_1_0\Models\RespondEventRequest;
use AlibabaCloud\Tea\Utils\Utils\RuntimeOptions;

class Sample {

    /**
     * Initialize the account client using a token
     * @return Dingtalk Client
     */
    public static function createClient(){
        $config = new Config([]);
        $config->protocol = "https";
        $config->regionId = "central";
        return new Dingtalk($config);
    }

    /**
     * @param string[] $args
     * @return void
     */
    public static function main($args){
        $client = self::createClient();
        $respondEventHeaders = new RespondEventHeaders([]);
        $respondEventHeaders->xAcsDingtalkAccessToken = "<your access token>";
        $respondEventRequest = new RespondEventRequest([
            "responseStatus" => "accepted"
        ]);
        try {
            $client->respondEventWithOptions("iiiP35sJadba8aBSgjrwPRKgiEiF", "primary", "cnNTbW1YbU9sL2p6aFJZdEgvdlQrQT09", $respondEventRequest, $respondEventHeaders, new RuntimeOptions([]));
        }
        catch (Exception $err) {
            if (!($err instanceof TeaError)) {
                $err = new TeaError([], $err->getMessage(), $err->getCode(), $err);
            }
            if (!Utils::empty_($err->code) && !Utils::empty_($err->message)) {
                // err contains code and message attributes that help locate the issue
            }
        }
    }
}
$path = __DIR__ . \DIRECTORY_SEPARATOR . '..' . \DIRECTORY_SEPARATOR . 'vendor' . \DIRECTORY_SEPARATOR . 'autoload.php';
if (file_exists($path)) {
    require_once $path;
}
Sample::main(array_slice($argv, 1));
```

Go

```go theme={"theme":{"light":"github-light","dark":"github-dark"}}
// This file is auto-generated, don't edit it. Thanks.
package main

import (
  "os"
  util  "github.com/alibabacloud-go/tea-utils/service"
  dingtalkcalendar_1_0  "github.com/alibabacloud-go/dingtalk/calendar_1_0"
  openapi  "github.com/alibabacloud-go/darabonba-openapi/client"
  "github.com/alibabacloud-go/tea/tea"
)

/**
 * Initialize the account client using a token
 * @return Client
 * @throws Exception
 */
func CreateClient () (_result *dingtalkcalendar_1_0.Client, _err error) {
  config := &openapi.Config{}
  config.Protocol = tea.String("https")
  config.RegionId = tea.String("central")
  _result = &dingtalkcalendar_1_0.Client{}
  _result, _err = dingtalkcalendar_1_0.NewClient(config)
  return _result, _err
}

func _main (args []*string) (_err error) {
  client, _err := CreateClient()
  if _err != nil {
    return _err
  }

  respondEventHeaders := &dingtalkcalendar_1_0.RespondEventHeaders{}
  respondEventHeaders.XAcsDingtalkAccessToken = tea.String("<your access token>")
  respondEventRequest := &dingtalkcalendar_1_0.RespondEventRequest{
    ResponseStatus: tea.String("accepted"),
  }
  tryErr := func()(_e error) {
    defer func() {
      if r := tea.Recover(recover()); r != nil {
        _e = r
      }
    }()
    _, _err = client.RespondEventWithOptions(tea.String("iiiP35sJadba8aBSgjrwPRKgiEiF"), tea.String("primary"), tea.String("cnNTbW1YbU9sL2p6aFJZdEgvdlQrQT09"), respondEventRequest, respondEventHeaders, &util.RuntimeOptions{})
    if _err != nil {
      return _err
    }

    return nil
  }()

  if tryErr != nil {
    var err = &tea.SDKError{}
    if _t, ok := tryErr.(*tea.SDKError); ok {
      err = _t
    } else {
      err.Message = tea.String(tryErr.Error())
    }
    if !tea.BoolValue(util.Empty(err.Code)) && !tea.BoolValue(util.Empty(err.Message)) {
      // err contains code and message attributes that help locate the issue
    }

  }
  return _err
}

func main() {
  err := _main(tea.StringSlice(os.Args[1:]))
  if err != nil {
    panic(err)
  }
}
```

Node.js

```python theme={"theme":{"light":"github-light","dark":"github-dark"}}
// This file is auto-generated, don't edit it
import Util, * as $Util from '@alicloud/tea-util';
import dingtalkcalendar_1_0, * as $dingtalkcalendar_1_0 from '@alicloud/dingtalk/calendar_1_0';
import OpenApi, * as $OpenApi from '@alicloud/openapi-client';
import * as $tea from '@alicloud/tea-typescript';

export default class Client {

  /**
   * Initialize the account client using a token
   * @return Client
   * @throws Exception
   */
  static createClient(): dingtalkcalendar_1_0 {
    let config = new $OpenApi.Config({ });
    config.protocol = "https";
    config.regionId = "central";
    return new dingtalkcalendar_1_0(config);
  }

  static async main(args: string[]): Promise<void> {
    let client = Client.createClient();
    let respondEventHeaders = new $dingtalkcalendar_1_0.RespondEventHeaders({ });
    respondEventHeaders.xAcsDingtalkAccessToken = "<your access token>";
    let respondEventRequest = new $dingtalkcalendar_1_0.RespondEventRequest({
      responseStatus: "accepted",
    });
    try {
      await client.respondEventWithOptions("iiiP35sJadba8aBSgjrwPRKgiEiF", "primary", "cnNTbW1YbU9sL2p6aFJZdEgvdlQrQT09", respondEventRequest, respondEventHeaders, new $Util.RuntimeOptions({ }));
    } catch (err) {
      if (!Util.empty(err.code) && !Util.empty(err.message)) {
        // err contains code and message attributes that help locate the issue
      }

    }    
  }

}

Client.main(process.argv.slice(2));
```

C#

```java theme={"theme":{"light":"github-light","dark":"github-dark"}}
// This file is auto-generated, don't edit it. Thanks.

using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Threading.Tasks;

using Tea;
using Tea.Utils;

namespace AlibabaCloud.SDK.Sample
{
    public class Sample 
    {

        /**
         * Initialize the account client using a token
         * @return Client
         * @throws Exception
         */
        public static AlibabaCloud.SDK.Dingtalkcalendar_1_0.Client CreateClient()
        {
            AlibabaCloud.OpenApiClient.Models.Config config = new AlibabaCloud.OpenApiClient.Models.Config();
            config.Protocol = "https";
            config.RegionId = "central";
            return new AlibabaCloud.SDK.Dingtalkcalendar_1_0.Client(config);
        }

        public static void Main(string[] args)
        {
            AlibabaCloud.SDK.Dingtalkcalendar_1_0.Client client = CreateClient();
            AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.RespondEventHeaders respondEventHeaders = new AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.RespondEventHeaders();
            respondEventHeaders.XAcsDingtalkAccessToken = "<your access token>";
            AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.RespondEventRequest respondEventRequest = new AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.RespondEventRequest
            {
                ResponseStatus = "accepted",
            };
            try
            {
                client.RespondEventWithOptions("iiiP35sJadba8aBSgjrwPRKgiEiF", "primary", "cnNTbW1YbU9sL2p6aFJZdEgvdlQrQT09", respondEventRequest, respondEventHeaders, new AlibabaCloud.TeaUtil.Models.RuntimeOptions());
            }
            catch (TeaException err)
            {
                if (!AlibabaCloud.TeaUtil.Common.Empty(err.Code) && !AlibabaCloud.TeaUtil.Common.Empty(err.Message))
                {
                    // err contains code and message attributes that help locate the issue
                }
            }
            catch (Exception _err)
            {
                TeaException err = new TeaException(new Dictionary<string, object>
                {
                    { "message", _err.Message }
                });
                if (!AlibabaCloud.TeaUtil.Common.Empty(err.Code) && !AlibabaCloud.TeaUtil.Common.Empty(err.Message))
                {
                    // err contains code and message attributes that help locate the issue
                }
            }
        }

    }
}
```

C

```cpp theme={"theme":{"light":"github-light","dark":"github-dark"}}
// This file is auto-generated, don't edit it. Thanks.

#include <alibabacloud/dingtalkcalendar__1__0.hpp>
#include <alibabacloud/open_api.hpp>
#include <boost/any.hpp>
#include <darabonba/core.hpp>
#include <darabonba/util.hpp>
#include <iostream>
#include <map>

using namespace std;

Alibabacloud_Dingtalkcalendar_1_0::Client createClient() {
  shared_ptr<Alibabacloud_OpenApi::Config> config = make_shared<Alibabacloud_OpenApi::Config>();
  config->protocol = make_shared<string>("https");
  config->regionId = make_shared<string>("central");
  return Alibabacloud_Dingtalkcalendar_1_0::Client(config);
}

int main(int argc, char *args[]) {
  args;
  shared_ptr<Alibabacloud_Dingtalkcalendar_1_0::Client> client = make_shared<Alibabacloud_Dingtalkcalendar_1_0::Client>(createClient());
  shared_ptr<Alibabacloud_Dingtalkcalendar_1_0::RespondEventHeaders> respondEventHeaders = make_shared<Alibabacloud_Dingtalkcalendar_1_0::RespondEventHeaders>();
  respondEventHeaders->xAcsDingtalkAccessToken = make_shared<string>("<your access token>");
  shared_ptr<Alibabacloud_Dingtalkcalendar_1_0::RespondEventRequest> respondEventRequest = make_shared<Alibabacloud_Dingtalkcalendar_1_0::RespondEventRequest>(map<string, boost::any>({
    {"responseStatus", boost::any(string("accepted"))}
  }));
  try {
    client->respondEventWithOptions(make_shared<string>("iiiP35sJadba8aBSgjrwPRKgiEiF"), make_shared<string>("primary"), make_shared<string>("cnNTbW1YbU9sL2p6aFJZdEgvdlQrQT09"), respondEventRequest, respondEventHeaders, make_shared<Darabonba_Util::RuntimeOptions>(Darabonba_Util::RuntimeOptions()));
  }
  catch (std::exception &err) {
    if (!Darabonba_Util::Client::empty(err.code) && !Darabonba_Util::Client::empty(err.message)) {
      // err contains code and message attributes that help locate the issue
    }
  }
}
```

## Response

### Response body example

```text theme={"theme":{"light":"github-light","dark":"github-dark"}}
HTTP/1.1 200 OK
```

### Error codes

If an error is returned when you call this API, look up the solution in the [Global error codes](/open/development/server-api-error-codes-1) document based on the error message.

| HttpCode | Error code       | Error message       | Description                          |
| -------- | ---------------- | ------------------- | ------------------------------------ |
| 400      | invalidParameter | forwardErrorMessage | Invalid parameter.                   |
| 404      | itemNotFound     | forwardErrorMessage | The specified event cannot be found. |