Attach file to the topic

Attaches a file to the selected task

Function AttachFileToTopic(Val URL, Val TaskID, Val FileID, Val Token = "") Export

Parameter	CLI option	Type	Required	Description
URL	--url	String	✔	URL of webhook or a Bitrix24 domain, when token used
TaskID	--task	Number, String	✔	Task ID
FileID	--fileid	Number, String	✔	File ID
Token	--token	String	✖	Access token, when app auth method used

Returns: Map Of KeyAndValue - serialized JSON of answer from Bitrix24 API

tip

Method at API documentation: tasks.task.files.attach

1C:Enterprise/OneScript code example

    URL    = "https://b24-ar17wx.bitrix24.by/rest/1/h0m...";
    TaskID = "7884";
    FileID = "42164";

    Result = OPI_Bitrix24.AttachFileToTopic(URL, TaskID, FileID);

    URL    = "b24-ar17wx.bitrix24.by";
    Token  = "75d8c668006e9f06006b12e400000001000...";
    TaskID = "7886";

    Result = OPI_Bitrix24.AttachFileToTopic(URL, TaskID, FileID, Token);

Bash

    oint bitrix24 AttachFileToTopic \
     --url ""b24-ar17wx.bitrix24.by"" \
     --task ""7992"" \
     --fileid "42704" \
     --token "***"

CMD/Bat

    oint bitrix24 AttachFileToTopic ^
     --url ""b24-ar17wx.bitrix24.by"" ^
     --task ""7992"" ^
     --fileid "42704" ^
     --token "***"

Result

{
 "result": {
  "attachmentId": 11868
 },
 "time": {
  "start": 1757976441.59882,
  "finish": 1757976441.6553,
  "duration": 0.0564789772033691,
  "processing": 0.0303459167480469,
  "date_start": "2025-09-15T22:47:21+00:00",
  "date_finish": "2025-09-15T22:47:21+00:00",
  "operating_reset_at": 1757977041,
  "operating": 0
 }
}