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    Sending One-to-One Messages to Multiple Users

    Last updated: 2024-12-19 15:00:28
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      Feature Overview

      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.
      If you don’t want to count messages as unread or store them, you can set MsgLifeTime to 1. This will make message delivery faster.
      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 recipients are friends or blocklisted by either party or whether the senders are muted.
      This API does not check whether the recipient has muted notifications for messages from the sender by default. If needed, enter WithMuteNotifications in the SendMsgControl parameter.
      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 describes the modified parameters when this API is called. For other parameters, see RESTful API Overview.
      Parameter
      Description
      xxxxxx
      Domain name corresponding to the country/region where your SDKAppID is located.
      China: console.tim.qq.com
      Singapore: adminapisgp.im.qcloud.com
      Seoul: adminapikr.im.qcloud.com
      Frankfurt: adminapiger.im.qcloud.com
      Silicon Valley: adminapiusa.im.qcloud.com
      Jakarta: adminapiidn.im.qcloud.com
      v4/openim/batchsendmsg
      Request API
      sdkappid
      SDKAppID assigned by the Chat console when an app is created
      identifier
      App admin account. For more information, see the App Admin section in Login Authentication.
      usersig
      Signature generated by the app admin account. For details, see Generating UserSig.
      random
      A random 32-bit unsigned integer ranging from 0 to 4294967295.
      contenttype
      Request format, which should always be json.

      Maximum call frequency

      12,000 messages/minute. If sent to 500 users at one time, it will be counted as 500 messages.

      Sample request

      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 badge counter 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 (32-bit unsigned integer) of the message. The backend will use this field to remove duplicate 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 (32-bit unsigned integer) of the message. It is used by the backend for removing duplicate message within a second. Make sure a random number is entered.
      MsgBody
      Array
      Yes
      TIM message. For more information, see Message Formats.
      OnlineOnlyFlag
      Integer
      No
      If this field is set to 0, the message will be stored in the historical chat records.
      1 means that messages will not be stored in the historical chat records, meaning if the recipient is online, they will receive this message; if offline, they won't. Suitable for implementing some real-time status features.
      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 receiver. Such data can be pulled after the app is uninstalled and reinstalled.
      SendMsgControl
      Array
      No
      Message sending control options is an array of strings, which is valid only for this request.
      "NoUnread" means this message is not counted as unread messages.
      "NoLastMsg" indicates that this message does not update the conversation list.
      "WithMuteNotifications" means that the recipient's Do Not Disturb settings for the sender are effective for this message (it does not take effect by default).
      "NoMsgCheck" means that, when cloud-based review is enabled, this message will not be submitted for review. Example: "SendMsgControl": ["NoUnread","NoLastMsg","WithMuteNotifications","NoMsgCheck"]
      OfflinePushInfo
      Object
      No
      The information to be pushed offline. For more information, see Message Formats.
      IsNeedReadReceipt
      Integer
      No
      Whether the message requires a read receipt.
      0: No.
      1: Yes.
      The default value is 0.

      Sample response

      Response when the message was sent to all the target accounts
       {
        "ErrorInfo": "",
        "ActionStatus": "OK",
        "ErrorCode": 0,
        "MsgKey": "128493_903762_1572870301",
        "MsgId": "144015217074523023-1734398005-1067690400"
      }
      Response when the message was not sent to some target accounts
      {
        "ActionStatus": "SomeError",
        "ErrorCode": 0,
        "ErrorInfo": "",
        "MsgKey": "4852_28135_1579678877",
        "MsgId": "144015217074523023-1734398005-1067690400",
        "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.
      MsgId
      String
      Unique identifier of the message on the client.

      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), 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 MsgBody is not an array. For more information, see the Message Element TIMMsgElement section in Message Formats.
      90004
      Invalid MsgSeq field in the JSON request.
      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 Chat 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 webhook is enabled, make sure the app server returns the results to the Chat backend normally.
      91000
      Internal service error. Try again.
      93000
      The JSON packet exceeds the maximum size of 12 KB.

      API Debugging Tool

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

      Reference

      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
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