> ## 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.

# Send a file link to a chat

> Call this API to send a file link to a specified chat so that members can access the file quickly.

Call this API to send a file link to a specified chat.

## Request

### Basic information

| Field                | Value                                                                                                                                        |
| -------------------- | -------------------------------------------------------------------------------------------------------------------------------------------- |
| HTTP URL             | [https://api.dingtalk.io/v1.0/convFile/conversations/files/links/send](https://api.dingtalk.io/v1.0/convFile/conversations/files/links/send) |
| HTTP Method          | POST                                                                                                                                         |
| Supported app type   | appType-Internal app                                                                                                                         |
| Required permissions | permission-ConvFile.File.Send-Group file send permission                                                                                     |

### Request header

| Name                        | Type   | Required | Description                                                                                                                                                                        |
| --------------------------- | ------ | -------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| x-acs-dingtalk-access-token | String | Yes      | The access credential for calling this API. Obtain it by calling the [Get the access token of an internal app](/open/development/obtain-the-access-token-of-an-internal-app#) API. |

### Query parameters

| Name    | Type   | Required | Description                                                                                                            |
| ------- | ------ | -------- | ---------------------------------------------------------------------------------------------------------------------- |
| unionId | String | Yes      | The unionId of the operator. Obtain it by calling the [Query user details](/open/development/query-user-details#) API. |

### Request body

| Name               | Type   | Required | Description                                                                                                                                                                                                  |
| ------------------ | ------ | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| spaceId            | String | Yes      | The ID of the space where the file is located. Obtain it by calling the [Add a space](/open/development/add-space#) API.                                                                                     |
| dentryId           | String | Yes      | The file ID. Obtain the value of the `id` parameter by calling the [Get the list of files or folders](https://open.dingtalk.com/document/development/obtain-the-file-list-storage#) API.                     |
| openConversationId | String | Yes      | The openConversationId of the target chat. Obtain the value of the `openConversationId` parameter by calling the [Create a group](https://open.dingtalk.com/document/development/create-group-session#) API. |

### Request example

HTTP

```http theme={"theme":{"light":"github-light","dark":"github-dark"}}
POST /v1.0/convFile/conversations/files/links/send?unionId=chyxxxxx HTTP/1.1
Host:api.dingtalk.io
x-acs-dingtalk-access-token:xxxxx
Content-Type:application/json

{
  "spaceId" : "786xxxxx",
  "dentryId" : "908xxxxx",
  "openConversationId" : "cidCxxxxx"
}
```

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 using a Token
     * @return Client
     * @throws Exception
     */
    public static com.aliyun.dingtalkconv_file_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.dingtalkconv_file_1_0.Client(config);
    }

    public static void main(String[] args_) throws Exception {
        java.util.List<String> args = java.util.Arrays.asList(args_);
        com.aliyun.dingtalkconv_file_1_0.Client client = Sample.createClient();
        com.aliyun.dingtalkconv_file_1_0.models.SendLinkHeaders sendLinkHeaders = new com.aliyun.dingtalkconv_file_1_0.models.SendLinkHeaders();
        sendLinkHeaders.xAcsDingtalkAccessToken = "<your access token>";
        com.aliyun.dingtalkconv_file_1_0.models.SendLinkRequest sendLinkRequest = new com.aliyun.dingtalkconv_file_1_0.models.SendLinkRequest()
                .setUnionId("chyxxxxx")
                .setSpaceId("786xxxxx")
                .setDentryId("908xxxxx")
                .setOpenConversationId("cidCxxxxx");
        try {
            client.sendLinkWithOptions(sendLinkRequest, sendLinkHeaders, 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 the code and message attributes, which help developers locate 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 the code and message attributes, which help developers locate 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.convFile_1_0.client import Client as dingtalkconvFile_1_0Client
from alibabacloud_tea_openapi import models as open_api_models
from alibabacloud_dingtalk.convFile_1_0 import models as dingtalkconv_file__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() -> dingtalkconvFile_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 dingtalkconvFile_1_0Client(config)

    @staticmethod
    def main(
        args: List[str],
    ) -> None:
        client = Sample.create_client()
        send_link_headers = dingtalkconv_file__1__0_models.SendLinkHeaders()
        send_link_headers.x_acs_dingtalk_access_token = '<your access token>'
        send_link_request = dingtalkconv_file__1__0_models.SendLinkRequest(
            union_id='chyxxxxx',
            space_id='786xxxxx',
            dentry_id='908xxxxx',
            open_conversation_id='cidCxxxxx'
        )
        try:
            client.send_link_with_options(send_link_request, send_link_headers, util_models.RuntimeOptions())
        except Exception as err:
            if not UtilClient.empty(err.code) and not UtilClient.empty(err.message):
                # err contains the code and message attributes, which help developers locate issues
                pass

    @staticmethod
    async def main_async(
        args: List[str],
    ) -> None:
        client = Sample.create_client()
        send_link_headers = dingtalkconv_file__1__0_models.SendLinkHeaders()
        send_link_headers.x_acs_dingtalk_access_token = '<your access token>'
        send_link_request = dingtalkconv_file__1__0_models.SendLinkRequest(
            union_id='chyxxxxx',
            space_id='786xxxxx',
            dentry_id='908xxxxx',
            open_conversation_id='cidCxxxxx'
        )
        try:
            await client.send_link_with_options_async(send_link_request, send_link_headers, util_models.RuntimeOptions())
        except Exception as err:
            if not UtilClient.empty(err.code) and not UtilClient.empty(err.message):
                # err contains the code and message attributes, which help developers locate 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\Vconv_file_1_0\Dingtalk;
use \Exception;
use AlibabaCloud\Tea\Exception\TeaError;
use AlibabaCloud\Tea\Utils\Utils;

use Darabonba\OpenApi\Models\Config;
use AlibabaCloud\SDK\Dingtalk\Vconv_file_1_0\Models\SendLinkHeaders;
use AlibabaCloud\SDK\Dingtalk\Vconv_file_1_0\Models\SendLinkRequest;
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();
        $sendLinkHeaders = new SendLinkHeaders([]);
        $sendLinkHeaders->xAcsDingtalkAccessToken = "<your access token>";
        $sendLinkRequest = new SendLinkRequest([
            "unionId" => "chyxxxxx",
            "spaceId" => "786xxxxx",
            "dentryId" => "908xxxxx",
            "openConversationId" => "cidCxxxxx"
        ]);
        try {
            $client->sendLinkWithOptions($sendLinkRequest, $sendLinkHeaders, 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 the code and message attributes, which help developers locate 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"
  dingtalkconvfile_1_0  "github.com/alibabacloud-go/dingtalk/convFile_1_0"
  openapi  "github.com/alibabacloud-go/darabonba-openapi/v2/client"
  "github.com/alibabacloud-go/tea/tea"
)

/**
 * Initialize the account Client using a Token
 * @return Client
 * @throws Exception
 */
func CreateClient () (_result *dingtalkconvfile_1_0.Client, _err error) {
  config := &openapi.Config{}
  config.Protocol = tea.String("https")
  config.RegionId = tea.String("central")
  _result = &dingtalkconvfile_1_0.Client{}
  _result, _err = dingtalkconvfile_1_0.NewClient(config)
  return _result, _err
}

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

  sendLinkHeaders := &dingtalkconvfile_1_0.SendLinkHeaders{}
  sendLinkHeaders.XAcsDingtalkAccessToken = tea.String("<your access token>")
  sendLinkRequest := &dingtalkconvfile_1_0.SendLinkRequest{
    UnionId: tea.String("chyxxxxx"),
    SpaceId: tea.String("786xxxxx"),
    DentryId: tea.String("908xxxxx"),
    OpenConversationId: tea.String("cidCxxxxx"),
  }
  tryErr := func()(_e error) {
    defer func() {
      if r := tea.Recover(recover()); r != nil {
        _e = r
      }
    }()
    _, _err = client.SendLinkWithOptions(sendLinkRequest, sendLinkHeaders, &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 the code and message attributes, which help developers locate 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 dingtalkconvFile_1_0, * as $dingtalkconvFile_1_0 from '@alicloud/dingtalk/convFile_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(): dingtalkconvFile_1_0 {
    let config = new $OpenApi.Config({ });
    config.protocol = "https";
    config.regionId = "central";
    return new dingtalkconvFile_1_0(config);
  }

  static async main(args: string[]): Promise<void> {
    let client = Client.createClient();
    let sendLinkHeaders = new $dingtalkconvFile_1_0.SendLinkHeaders({ });
    sendLinkHeaders.xAcsDingtalkAccessToken = "<your access token>";
    let sendLinkRequest = new $dingtalkconvFile_1_0.SendLinkRequest({
      unionId: "chyxxxxx",
      spaceId: "786xxxxx",
      dentryId: "908xxxxx",
      openConversationId: "cidCxxxxx",
    });
    try {
      await client.sendLinkWithOptions(sendLinkRequest, sendLinkHeaders, new $Util.RuntimeOptions({ }));
    } catch (err) {
      if (!Util.empty(err.code) && !Util.empty(err.message)) {
        // err contains the code and message attributes, which help developers locate 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 using a Token
         * @return Client
         * @throws Exception
         */
        public static AlibabaCloud.SDK.Dingtalkconv_file_1_0.Client CreateClient()
        {
            AlibabaCloud.OpenApiClient.Models.Config config = new AlibabaCloud.OpenApiClient.Models.Config();
            config.Protocol = "https";
            config.RegionId = "central";
            return new AlibabaCloud.SDK.Dingtalkconv_file_1_0.Client(config);
        }

        public static void Main(string[] args)
        {
            AlibabaCloud.SDK.Dingtalkconv_file_1_0.Client client = CreateClient();
            AlibabaCloud.SDK.Dingtalkconv_file_1_0.Models.SendLinkHeaders sendLinkHeaders = new AlibabaCloud.SDK.Dingtalkconv_file_1_0.Models.SendLinkHeaders();
            sendLinkHeaders.XAcsDingtalkAccessToken = "<your access token>";
            AlibabaCloud.SDK.Dingtalkconv_file_1_0.Models.SendLinkRequest sendLinkRequest = new AlibabaCloud.SDK.Dingtalkconv_file_1_0.Models.SendLinkRequest
            {
                UnionId = "chyxxxxx",
                SpaceId = "786xxxxx",
                DentryId = "908xxxxx",
                OpenConversationId = "cidCxxxxx",
            };
            try
            {
                client.SendLinkWithOptions(sendLinkRequest, sendLinkHeaders, new AlibabaCloud.TeaUtil.Models.RuntimeOptions());
            }
            catch (TeaException err)
            {
                if (!AlibabaCloud.TeaUtil.Common.Empty(err.Code) && !AlibabaCloud.TeaUtil.Common.Empty(err.Message))
                {
                    // err contains the code and message attributes, which help developers locate 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 the code and message attributes, which help developers locate issues
                }
            }
        }

    }
}
```

## Response

### Response body

| Name           | Type   | Description                                                                               |
| -------------- | ------ | ----------------------------------------------------------------------------------------- |
| file           | Object | The file link information sent to the target chat.                                        |
| id             | String | The file ID.                                                                              |
| conversationId | String | The openConversationId of the chat where the file is located.                             |
| spaceId        | String | The ID of the space where the file is located.                                            |
| parentId       | String | The ID of the parent folder where the file is located. The ID of the root folder is 0.    |
| type           | String | The file type.   - **FILE**: file - **FOLDER**: folder                                    |
| name           | String | The file name.                                                                            |
| size           | Long   | The file size, in bytes.                                                                  |
| path           | String | The file path.                                                                            |
| version        | Long   | The file version number.                                                                  |
| status         | String | The file status.   - **NORMAL**: normal - **DELETED**: deleted - **EXPIRED**: expired     |
| extension      | String | The file extension.                                                                       |
| creatorId      | String | The unionId of the file creator.                                                          |
| modifierId     | String | The unionId of the file modifier.                                                         |
| createTime     | String | The time when the file was created, in ISO 8601 format. Example: 2022-07-29T14:55Z.       |
| modifiedTime   | String | The time when the file was last modified, in ISO 8601 format. Example: 2022-07-29T14:55Z. |
| uuid           | String | The identifier field.                                                                     |

### Response body example

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

{
  "file" : {
    "id" : "file_id",
    "conversationId" : "open_conversation_id",
    "spaceId" : "space_id",
    "parentId" : "parent_id",
    "type" : "file",
    "name" : "file_name",
    "size" : 256,
    "path" : "file_path",
    "version" : 1,
    "status" : "NORMAL",
    "extension" : "txt",
    "creatorId" : "creator_id",
    "modifierId" : "modified_id",
    "createTime" : "2022-01-01T10:00:00Z",
    "modifiedTime" : "2022-01-01T10:00:00Z",
    "uuid" : "uuid"
  }
}
```

### Error codes

If an error occurs 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      | paramError                | %s            | Parameter error                                                                    |
| 400      | paramError.spaceId        | %s            | Parameter error - spaceId                                                          |
| 400      | paramError.dentryId       | %s            | Parameter error - dentryId                                                         |
| 400      | paramError.conversationId | %s            | Parameter error - conversationId                                                   |
| 403      | permissionDenied          | %s            | The user lacks the permission to add files to the storage space of the target chat |
| 404      | conversationNotExist      | %s            | The target chat does not exist                                                     |
| 500      | systemError               | %s            | System error                                                                       |
| 500      | unknownError              | Unknown Error | Unknown error                                                                      |