Feature Description

• This API is used to send one-to-one messages to multiple users (up to 500) at a time.
• Compared with the API for sending one-to-one messages to one user, this API is more suitable for time-sensitive messages, such as marketing messages and system notifications.
• When the admin specifies an account to send a message to multiple target accounts, the sender displayed to the recipients is not the admin, but the account specified by the admin.
• This API does not trigger callback requests.
• This API does not check whether the sender and the recipient are friends or blocklisted by either party or whether the recipient is muted.
• For one-to-one messages, the MsgSeq field is specified by the user when the message is sent. Its value can be repeated. It is not generated by the backend and not globally unique. For group chat messages, the value of the MsgSeq field is generated by the backend, and each group maintains its respective MsgSeq which increases strictly from 1. For one-to-one messages, the historical messages of the same conversation are sorted by timestamp first, and then the historical messages of the same second are sorted by MsgSeq.

Note：

When calling this API to batch send a message, you must specify whether to synchronize the message to the sender, which is the admin account or the account specified by the admin. Synchronization can be implemented via online terminals and roaming servers. This API provides the SyncOtherMachine parameter to determine whether to synchronize the message. For more information, please see Sample request below.

API Calling Description

Sample request URL

https://xxxxxx/v4/openim/batchsendmsg?sdkappid=88888888&identifier=admin&usersig=xxx&random=99999999&contenttype=json

Request parameters

The following table only describes the modified parameters when this API is called. For more information on other parameters, please see RESTful API Overview.

Parameter	Description
https	The request protocol is HTTPS, and the request method is POST.
xxxxxx	The country/region where your SDKAppID is located. China: console.tim.qq.com Singapore: adminapisgp.im.qcloud.com
v4/openim/batchsendmsg	Request API
sdkappid	SDKAppID assigned by the IM console when an app is created
identifier	App admin account. For more information, please see the App Admin section in Login Authentication.
usersig	Signature generated in the app admin account. For details on how to generate the signature, please see Generating UserSig.
random	A random 32-bit unsigned integer ranging from 0 to 4294967295

Maximum call frequency

200 calls per second

Sample requests

Here, we use sending a text message as an example. To send messages of other types, set MsgBody to the corresponding message type. For more information, see Message Formats.

The admin sends a message to multiple target accounts.

Note：

If you do not want to synchronize the message to From_Account, set SyncOtherMachine to 2.
To synchronize the message to From_Account, set SyncOtherMachine to 1.

{
  "SyncOtherMachine": 2, // Do not synchronize the message to the sender.
  "To_Account": [ // A list of target accounts
      "bonnie",
      "rong"
  ],
  "MsgSeq": 28360, // Sequence number of the message.
  "MsgRandom": 19901224, // Random number of the message
  "MsgBody": [ // Message body
      {
          "MsgType": "TIMTextElem", // Message type. `TIMTextElem` indicates text messages.
          "MsgContent": {
              "Text": "hi, beauty" // Message text
          }
      }
  ],
  "CloudCustomData": "your cloud custom data"
}

The admin specifies an account to send a message to multiple target accounts and sets the information of offline push.

From_Account is the sender specified by the admin. The sender displayed to the recipients is not the admin, but the account specified by the admin. In the following JSON request, dave sends a message to bonnie and rong. When bonnie and rong receive the message, the message sender displayed to them is dave.

Note：

If you do not want to synchronize the message to From_Account, set SyncOtherMachine to 2.
To synchronize the message to From_Account, set SyncOtherMachine to 1.

{
  "SyncOtherMachine": 1, // Synchronize the message to the sender.
  "From_Account": "dave",
  "To_Account": [
      "bonnie",
      "rong"
  ],
  "MsgSeq": 28360, // Sequence number of the message.
  "MsgRandom": 19901224, // Random number of the message
  "MsgBody": [
      {
          "MsgType": "TIMTextElem",
          "MsgContent": {
              "Text": "hi, beauty"
          }
      }
  ],
  "CloudCustomData": "your cloud custom data",
  "OfflinePushInfo": {
      "PushFlag": 0,
      "Desc": "Content to push offline",
      "Ext": "Passthrough content",
      "AndroidInfo": {
          "Sound": "android.mp3"
      },
      "ApnsInfo": {
          "Sound": "apns.mp3",
          "BadgeMode": 1, // If this field is left as default or is set to `0`, the message is counted. If this field is set to `1`, the message is not counted, that is, the icon number in the upper-right corner does not increase.
          "Title":"apns title", // APNs title
          "SubTitle":"apns subtitle", // APNs subtitle
          "Image":"www.image.com" // Image URL
      }
  }
}

Request fields

Field	Type	Required	Description
SyncOtherMachine	Integer	No	1: synchronize the message to the online terminal and roaming server of From_Account. 2: do not synchronize the message to From_Account. If this field is not specified, the message is synchronized to the roaming server of From_Account.
From_Account	String	No	Sender account specified by the admin. To set the information of From_Account, the value of this field cannot be left empty.
To_Account	Array	Yes	UserID of the message recipient
MsgSeq	Integer	No	Sequence number of the message. The backend will use this field to deduplicate messages and sort messages in the same second. For details, see Feature Description. If this field is left empty, the backend will enter a random number.
MsgRandom	Integer	Yes	Random number of the message. It is used by the backend for message deduplication within a second. Make sure the random number is entered.
MsgBody	Object	Yes	TIM message. For more information, please see Message Formats.
MsgType	String	Yes	TIM message object type. Valid values: TIMTextElem (text message) TIMLocationElem (location message) TIMFaceElem (emoji message) TIMCustomElem (custom message) TIMSoundElem (voice message) TIMImageElem (image message) TIMFileElem (file message) TIMVideoFileElem (video message)
MsgContent	Object	Yes	TIM message object. For more information, see Message Formats.
CloudCustomData	String	No	Custom message data. It is saved in the cloud and will be sent to the peer end. Such data can be pulled after the app is uninstalled and reinstalled.
SendMsgControl	Array	No	Message sending control option. It is a string array and is valid only for this request. NoUnread means not to include this message in the unread count, and "NoLastMsg" means not to refresh the conversation list. Example: "SendMsgControl": ["NoUnread","NoLastMsg"]
OfflinePushInfo	Object	No	The information to be pushed offline. For more information, see Message Formats.

Sample response

• Response when the message was sent to all the target accounts

  {
   "ErrorInfo": "",
   "ActionStatus":"OK",
   "ErrorCode": 0,
   "MsgKey": "128493_903762_1572870301"
  }
  

• Response when the message was not sent to some target accounts

  {
   "ActionStatus": "SomeError",
   "ErrorCode": 0,
   "ErrorInfo": "",
   "MsgKey": "4852_28135_1579678877",
   "ErrorList": [ // List of the accounts to which the message was not sent
       {
           "To_Account": "rong", // Account to which the message was not sent
           "ErrorCode":  70107 // Error code. `70107` indicates that the account does not exist.
       }
   ]
  }
  

• Response when the message was sent to none of the target accounts

  {
   "ActionStatus": "FAIL",
   "ErrorInfo": "invalid To_Account",
   "ErrorCode": 90012
  }
  

Response fields

Field	Type	Description
ActionStatus	String	Request result. OK: successful; FAIL: failed
ErrorCode	Integer	Error code returned for the request. If the message was sent to any account, the value is 0. If the message was sent to none of the target accounts, the value is not 0.
ErrorInfo	String	Error information
ErrorList	Array	List of the target accounts to which the message was not sent or that do not exist. If the message was sent to all the target accounts, the value of this field is empty.
ErrorList.To_Account	String	Target account to which the message was not sent.
ErrorList.ErrorCode	Integer	Error code indicating that the message was not sent. If the error code is 70107, the account does not exist.
MsgKey	String	Unique identifier of the message. This field is required to recall a message. The value is a string of no more than 50 characters.

Error Codes

The returned HTTP status code for this API is always 200 unless a network error (such as error 502) occurs. The specific error code and details can be found in the response fields ErrorCode and ErrorInfo respectively.
For public error codes (60000 to 79999), please see Error Codes.
The following table describes the error codes specific to this API:

Error Code	Description
70107	The requested account does not exist.
70169	Server timeout. Try again later.
90001	Failed to parse the JSON request. Make sure the format is valid.
90002	The MsgBody in the JSON request does not meet message format requirements or it is not an array. For more information, see the Message Element TIMMsgElement section in Message Formats.
90007	The MsgBody field in the JSON request is not an array. Change it to an array.
90008	The JSON request does not contain the From_Account field or the account specified in From_Account does not exist.
90009	The request requires app admin permissions.
90010	The JSON request does not meet message format requirements. For more information, see the Message Element TIMMsgElement section in Message Formats.
90011	The number of target accounts exceeds 500. Delete some To_Account.
90012	The account specified in To_Account does not exist or is not registered. Make sure the account has been imported to IM and is correct.
90026	The offline retention time of the message is incorrect. Messages cannot be retained offline for more than 7 days.
90048	The requested account does not exist.
90992	Internal service error. Try again. If this error code is returned for all requests and third-party callback is enabled, make sure the app server returns the callback results to the IM backend normally.
91000	Internal service error. Try again.
93000	The JSON packet exceeds the maximum size of 8 KB.

Debugging Tool

Use the RESTful API online debugging tool to debug this API.

References

• Sending One-to-One Messages to One User (v4/openim/sendmsg)
• Sending Ordinary Messages in a Group (v4/group_open_http_svc/send_group_msg)
• Sending System Messages in a Group (v4/group_open_http_svc/send_group_system_notification)
• Message Formats