> ## 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.

# Query the read list of Bot messages in a one-to-one chat

> Call this API to query the read list of bot messages in a one-to-one chat by group ID, bot code, and message ID, suitable for confirming whether bot messages have been read in single-chat communication.

Call this API to query the read list of Bot messages in a one-to-one chat based on the group ID, Bot code, and message ID. This API applies to scenarios where you need to confirm whether a Bot message has been read during direct message communication between users in your organization.

## Request

### Basic information

| Field                | Value                                                                                                                        |
| -------------------- | ---------------------------------------------------------------------------------------------------------------------------- |
| HTTP URL             | [https://api.dingtalk.io/v1.0/robot/privateChatMessages/query](https://api.dingtalk.io/v1.0/robot/privateChatMessages/query) |
| HTTP Method          | POST                                                                                                                         |
| Supported app types  | appType-Internal app　appType-Third-party enterprise app                                                                      |
| Required permissions | permission-qyapi\_robot\_sendmsg-Permission for Bots in your organization to send messages                                   |

### Request headers

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

### Request body

| Name               | Type   | Required | Description                                                                                                                                                                                                                                                                                                                                                        |
| ------------------ | ------ | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| openConversationId | String | No       | The open conversation ID for the one-to-one chat. Obtain its value by calling [Batch install a Mini App into direct message chats](https://open.dingtalk.com/document/development/batch-chat-session#) and subscribing to [Chat management events](https://open.dingtalk.com/document/development/org-event-overview#260a4e7084gs2) to get the OpenConversationId. |
| robotCode          | String | No       | The Bot code. For details, see [Bot ID](https://open.dingtalk.com/document/development/robot-overview#).                                                                                                                                                                                                                                                           |
| processQueryKey    | String | Yes      | The message ID. Obtain the `processQueryKey` value by calling the [Create and deliver a card](https://open.dingtalk.com/document/development/create-and-deliver-cards#) API or the [Send a plain message via a Bot in a one-to-one chat](/open/development/the-robot-sends-ordinary-messages-in-a-person-to-person-conversation#) API.                             |
| maxResults         | Long   | No       | The number of items per page in a paginated query.                                                                                                                                                                                                                                                                                                                 |
| nextToken          | String | No       | The encrypted pagination credential returned from the previous query. Leave this empty for the first query.                                                                                                                                                                                                                                                        |

### Request example

HTTP

```http theme={"theme":{"light":"github-light","dark":"github-dark"}}
POST /v1.0/robot/privateChatMessages/query HTTP/1.1
Host:api.dingtalk.io
x-acs-dingtalk-access-token:8ca04016xxx
Content-Type:application/json

{
  "openConversationId" : "cid6KeBBLo******7EeiodoA==",
  "robotCode" : "ding******dxbyn0pjqd",
  "processQueryKey" : "Kna******pdJznx1ghavbumkQKwDzgfxZLapw55G7x0Q=",
  "maxResults" : 50,
  "nextToken" : "50"
}
```

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.*;

public class Sample {

    /**
     * Initialize the account Client with a Token
     * @return Client
     * @throws Exception
     */
    public static com.aliyun.dingtalkrobot_1_0.Client createClient() throws Exception {
        com.aliyun.teaopenapi.models.Config config = new com.aliyun.teaopenapi.models.Config();
        config.protocol = "https";
        config.regionId = "central";
        return new com.aliyun.dingtalkrobot_1_0.Client(config);
    }

    public static void main(String[] args_) throws Exception {
        java.util.List<String> args = java.util.Arrays.asList(args_);
        com.aliyun.dingtalkrobot_1_0.Client client = Sample.createClient();
        com.aliyun.dingtalkrobot_1_0.models.PrivateChatQueryHeaders privateChatQueryHeaders = new com.aliyun.dingtalkrobot_1_0.models.PrivateChatQueryHeaders();
        privateChatQueryHeaders.xAcsDingtalkAccessToken = "<your access token>";
        com.aliyun.dingtalkrobot_1_0.models.PrivateChatQueryRequest privateChatQueryRequest = new com.aliyun.dingtalkrobot_1_0.models.PrivateChatQueryRequest()
                .setOpenConversationId("cid6KeBBLo******7EeiodoA==")
                .setRobotCode("ding******dxbyn0pjqd")
                .setProcessQueryKey("Kna******pdJznx1ghavbumkQKwDzgfxZLapw55G7x0Q=")
                .setMaxResults(50L)
                .setNextToken("50");
        try {
            client.privateChatQueryWithOptions(privateChatQueryRequest, privateChatQueryHeaders, new com.aliyun.teautil.models.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 diagnose issues
            }

        } 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 diagnose issues
            }

        }        
    }
}
```

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.robot_1_0.client import Client as dingtalkrobot_1_0Client
from alibabacloud_tea_openapi import models as open_api_models
from alibabacloud_dingtalk.robot_1_0 import models as dingtalkrobot__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() -> dingtalkrobot_1_0Client:
        """
        Initialize the account Client with a Token
        @return: Client
        @throws Exception
        """
        config = open_api_models.Config()
        config.protocol = 'https'
        config.region_id = 'central'
        return dingtalkrobot_1_0Client(config)

    @staticmethod
    def main(
        args: List[str],
    ) -> None:
        client = Sample.create_client()
        private_chat_query_headers = dingtalkrobot__1__0_models.PrivateChatQueryHeaders()
        private_chat_query_headers.x_acs_dingtalk_access_token = '<your access token>'
        private_chat_query_request = dingtalkrobot__1__0_models.PrivateChatQueryRequest(
            open_conversation_id='cid6KeBBLo******7EeiodoA==',
            robot_code='ding******dxbyn0pjqd',
            process_query_key='Kna******pdJznx1ghavbumkQKwDzgfxZLapw55G7x0Q=',
            max_results=50,
            next_token='50'
        )
        try:
            client.private_chat_query_with_options(private_chat_query_request, private_chat_query_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 diagnose issues
                pass

    @staticmethod
    async def main_async(
        args: List[str],
    ) -> None:
        client = Sample.create_client()
        private_chat_query_headers = dingtalkrobot__1__0_models.PrivateChatQueryHeaders()
        private_chat_query_headers.x_acs_dingtalk_access_token = '<your access token>'
        private_chat_query_request = dingtalkrobot__1__0_models.PrivateChatQueryRequest(
            open_conversation_id='cid6KeBBLo******7EeiodoA==',
            robot_code='ding******dxbyn0pjqd',
            process_query_key='Kna******pdJznx1ghavbumkQKwDzgfxZLapw55G7x0Q=',
            max_results=50,
            next_token='50'
        )
        try:
            await client.private_chat_query_with_options_async(private_chat_query_request, private_chat_query_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 diagnose issues
                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\Vrobot_1_0\Dingtalk;
use \Exception;
use AlibabaCloud\Tea\Exception\TeaError;
use AlibabaCloud\Tea\Utils\Utils;

use Darabonba\OpenApi\Models\Config;
use AlibabaCloud\SDK\Dingtalk\Vrobot_1_0\Models\PrivateChatQueryHeaders;
use AlibabaCloud\SDK\Dingtalk\Vrobot_1_0\Models\PrivateChatQueryRequest;
use AlibabaCloud\Tea\Utils\Utils\RuntimeOptions;

class Sample {

    /**
     * Initialize the account Client with 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();
        $privateChatQueryHeaders = new PrivateChatQueryHeaders([]);
        $privateChatQueryHeaders->xAcsDingtalkAccessToken = "<your access token>";
        $privateChatQueryRequest = new PrivateChatQueryRequest([
            "openConversationId" => "cid6KeBBLo******7EeiodoA==",
            "robotCode" => "ding******dxbyn0pjqd",
            "processQueryKey" => "Kna******pdJznx1ghavbumkQKwDzgfxZLapw55G7x0Q=",
            "maxResults" => 50,
            "nextToken" => "50"
        ]);
        try {
            $client->privateChatQueryWithOptions($privateChatQueryRequest, $privateChatQueryHeaders, 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 diagnose issues
            }
        }
    }
}
$path = __DIR__ . \DIRECTORY_SEPARATOR . '..' . \DIRECTORY_SEPARATOR . 'vendor' . \DIRECTORY_SEPARATOR . 'autoload.php';
if (file_exists($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/v2/service"
  dingtalkrobot_1_0  "github.com/alibabacloud-go/dingtalk/robot_1_0"
  openapi  "github.com/alibabacloud-go/darabonba-openapi/v2/client"
  "github.com/alibabacloud-go/tea/tea"
)

/**
 * Initialize the account Client with a Token
 * @return Client
 * @throws Exception
 */
func CreateClient () (_result *dingtalkrobot_1_0.Client, _err error) {
  config := &openapi.Config{}
  config.Protocol = tea.String("https")
  config.RegionId = tea.String("central")
  _result = &dingtalkrobot_1_0.Client{}
  _result, _err = dingtalkrobot_1_0.NewClient(config)
  return _result, _err
}

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

  privateChatQueryHeaders := &dingtalkrobot_1_0.PrivateChatQueryHeaders{}
  privateChatQueryHeaders.XAcsDingtalkAccessToken = tea.String("<your access token>")
  privateChatQueryRequest := &dingtalkrobot_1_0.PrivateChatQueryRequest{
    OpenConversationId: tea.String("cid6KeBBLo******7EeiodoA=="),
    RobotCode: tea.String("ding******dxbyn0pjqd"),
    ProcessQueryKey: tea.String("Kna******pdJznx1ghavbumkQKwDzgfxZLapw55G7x0Q="),
    MaxResults: tea.Int64(50),
    NextToken: tea.String("50"),
  }
  tryErr := func()(_e error) {
    defer func() {
      if r := tea.Recover(recover()); r != nil {
        _e = r
      }
    }()
    _, _err = client.PrivateChatQueryWithOptions(privateChatQueryRequest, privateChatQueryHeaders, &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 diagnose issues
    }

  }
  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 dingtalkrobot_1_0, * as $dingtalkrobot_1_0 from '@alicloud/dingtalk/robot_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 with a Token
   * @return Client
   * @throws Exception
   */
  static createClient(): dingtalkrobot_1_0 {
    let config = new $OpenApi.Config({ });
    config.protocol = "https";
    config.regionId = "central";
    return new dingtalkrobot_1_0(config);
  }

  static async main(args: string[]): Promise<void> {
    let client = Client.createClient();
    let privateChatQueryHeaders = new $dingtalkrobot_1_0.PrivateChatQueryHeaders({ });
    privateChatQueryHeaders.xAcsDingtalkAccessToken = "<your access token>";
    let privateChatQueryRequest = new $dingtalkrobot_1_0.PrivateChatQueryRequest({
      openConversationId: "cid6KeBBLo******7EeiodoA==",
      robotCode: "ding******dxbyn0pjqd",
      processQueryKey: "Kna******pdJznx1ghavbumkQKwDzgfxZLapw55G7x0Q=",
      maxResults: 50,
      nextToken: "50",
    });
    try {
      await client.privateChatQueryWithOptions(privateChatQueryRequest, privateChatQueryHeaders, new $Util.RuntimeOptions({ }));
    } catch (err) {
      if (!Util.empty(err.code) && !Util.empty(err.message)) {
        // err contains code and message attributes that help diagnose issues
      }

    }    
  }

}

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 with a Token
         * @return Client
         * @throws Exception
         */
        public static AlibabaCloud.SDK.Dingtalkrobot_1_0.Client CreateClient()
        {
            AlibabaCloud.OpenApiClient.Models.Config config = new AlibabaCloud.OpenApiClient.Models.Config();
            config.Protocol = "https";
            config.RegionId = "central";
            return new AlibabaCloud.SDK.Dingtalkrobot_1_0.Client(config);
        }

        public static void Main(string[] args)
        {
            AlibabaCloud.SDK.Dingtalkrobot_1_0.Client client = CreateClient();
            AlibabaCloud.SDK.Dingtalkrobot_1_0.Models.PrivateChatQueryHeaders privateChatQueryHeaders = new AlibabaCloud.SDK.Dingtalkrobot_1_0.Models.PrivateChatQueryHeaders();
            privateChatQueryHeaders.XAcsDingtalkAccessToken = "<your access token>";
            AlibabaCloud.SDK.Dingtalkrobot_1_0.Models.PrivateChatQueryRequest privateChatQueryRequest = new AlibabaCloud.SDK.Dingtalkrobot_1_0.Models.PrivateChatQueryRequest
            {
                OpenConversationId = "cid6KeBBLo******7EeiodoA==",
                RobotCode = "ding******dxbyn0pjqd",
                ProcessQueryKey = "Kna******pdJznx1ghavbumkQKwDzgfxZLapw55G7x0Q=",
                MaxResults = 50,
                NextToken = "50",
            };
            try
            {
                client.PrivateChatQueryWithOptions(privateChatQueryRequest, privateChatQueryHeaders, 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 diagnose issues
                }
            }
            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 diagnose issues
                }
            }
        }

    }
}
```

## Response

### Response body

| Name        | Type            | Description                                                                                               |
| ----------- | --------------- | --------------------------------------------------------------------------------------------------------- |
| sendStatus  | String          | The message send status.   - SUCCESS: Sent successfully. - RECALLED: Recalled. - PROCESSING: In progress. |
| readUserIds | Array of String | The list of userIds of users who have read the message.                                                   |
| nextToken   | String          | The encrypted credential for the next paginated query.                                                    |
| hasMore     | Boolean         | Indicates whether more results are available for the paginated query.                                     |

### Response body example

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

{
  "sendStatus" : "SUCCESS",
  "readUserIds" : [ "123xxxx" ],
  "nextToken" : "Kna29******znx1ghavbumkQKwDzgfxZLapw55G7x0Q=",
  "hasMore" : true
}
```

### Error codes

If an error occurs when calling this API, refer to the [Global error codes](/open/development/server-api-error-codes-1) document to find a solution based on the error message.

| HttpCode | Error code                               | Error message                                                           | Description                                                                                             |
| -------- | ---------------------------------------- | ----------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------- |
| 400      | invalidParameter.param.invalid           | Invalid parameter                                                       | Invalid parameter. Check whether the parameter is empty.                                                |
| 400      | invalidParameter.robotCode.notExsit      | Bot does not exist                                                      | The Bot does not exist. Check whether the Bot is in the group.                                          |
| 400      | invalidParameter.robotCode.missing       | Missing robotCode                                                       | Missing robotCode.                                                                                      |
| 400      | invalidParameter.processQueryKey.missing | Missing processQueryKey                                                 | Missing processQueryKey.                                                                                |
| 400      | invalidParameter.cursor.invalid          | Invalid nextToken                                                       | Invalid nextToken. Check whether nextToken is correct.                                                  |
| 400      | invalidParameter.pageSize.invalid        | Invalid maxResults                                                      | maxResults exceeds the upper limit of 200.                                                              |
| 400      | invalidParameter.robotCode.invalid       | Invalid robotCode                                                       | Invalid robotCode.                                                                                      |
| 400      | invalid.openConversationId               | Invalid openConversationId                                              | Invalid openConversationId.                                                                             |
| 400      | openConversationId.notExisted            | openConversationId is empty                                             | openConversationId is empty.                                                                            |
| 400      | invalid.processQueryKey                  | Invalid processQueryKey                                                 | Invalid processQueryKey.                                                                                |
| 400      | bot.stopped                              | The Group bot has been disabled                                         | The Group bot has been disabled.                                                                        |
| 400      | template.not.existed                     | Bot template does not exist                                             | The Bot template does not exist.                                                                        |
| 400      | template.stopped                         | Bot template has been disabled                                          | The Bot template has been disabled.                                                                     |
| 400      | processQueryKey.expireTime               | processQueryKey has not yet generated message query data or has expired | processQueryKey has not yet generated message query data or has expired. The message cannot be queried. |
| 400      | conversation.org.dismatch                | The chat does not belong to the current organization                    | The chat does not belong to the current organization.                                                   |
| 400      | resource.not.found                       | %s                                                                      | The Bot does not exist.                                                                                 |
| 400      | unauthorized                             | %s                                                                      | Unauthorized.                                                                                           |
| 400      | auth.error                               | %s                                                                      | Insufficient permissions. The operation is not allowed.                                                 |
| 500      | system.error                             | Unknown system error                                                    | Unknown system error.                                                                                   |