Feature Description

The app admin can use this API to obtain the download addresses for all one-to-one or group message records in the app that occur at a specified point in time for the last 7 days.

Note：

• Downloads images, audio, files, and videos from message records. This feature is only applicable to IM SDK 4.X. The download can be performed based on the URL fields in chat records. If you are using IM SDK 2.X or 3.X, you cannot obtain the preceding information in this method. If you need this feature, upgrade your IM SDK to version 4.X.
• Stores message records as logs and compresses them by using GZip. After obtaining the download addresses through the API, you can download and process the message records yourself. Message record files are generated every hour. For example, the data generated at midnight (00:00-00:59) will be processed from 01:00. Typically, the data can be processed within one hour. However, if the message quantity is large, it will take longer to process them. The message record files are valid for only seven days and will be deleted after seven days regardless of the download status. The deleted record cannot be exported again.
• This API is used only to download historical chat records for the last 7 days, for backup, statistics, or other purposes. We do not recommend that you use it for real-time online businesses.

API Invocation Description

Request URL example

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

Request parameters

The following table only describes parameters that are modified when this API is invoked. For details on other parameters, see RESTful API Overview.

Maximum invocation frequency

The maximum invocation frequency is 10 times per second.

Request packet example

{
  "ChatType": "C2C",
  "MsgTime": "2015120121"
}

Request packet fields

Response packet example

{
"File": [
    {
        "URL": "https://download.tim.qq.com/msg_history/2/9b8f8f063b73f61698ce11e58207e89ade40.gz",
        "ExpireTime": "2015-12-02 16:45:23",
        "FileSize": 65207,
        "FileMD5": "cceece008bb7f469a47cf8c4b7acb84e",
        "GzipSize": 1815,
        "GzipMD5": "c3a0269dde393fd7a8bb18bfdeaeee2e"
    }
],
"ActionStatus": "OK",
"ErrorInfo": "",
"ErrorCode": 0
}

Response packet fields

Error Codes

Unless a network error (such as error 502 ) occurs, the HTTP return code for this API is always 200. ErrorCode and ErrorInfo in the response packet represent the actual error code and error information, respectively.
For common error codes (60000 to 79999), see Error Codes.
Private error codes for this API are as follows:

Format of Message Record Files

//For one-to-one messages
{"SdkAppId":1104620500,"ChatType":"C2C","MsgTime":"2015120121","MsgList":[
{"From_Account":"peakerdong","To_Account":"qiyueliuhuo2018","MsgTimestamp":1448974806,"MsgSeq":3452069198,"MsgRandom":45838,"MsgBody":[{"MsgType":"TIMTextElem","MsgContent":{"Text":"Quartering"}}]},
{"From_Account":"group_root","To_Account":"group_test4","MsgTimestamp":1448974808,"MsgSeq":462709847,"MsgRandom":19196437,"MsgBody":[{"MsgType":"TIMTextElem","MsgContent":{"Text":"hi, beauty"}}]}
]}
//For group messages
{"SdkAppId":1104620500,"ChatType":"Group","MsgTime":"2015120121","MsgList":[
{"From_Account":"Test_1","GroupId":"@TGS#1FDFVPAE2","MsgTimestamp":1448975384,"MsgSeq":1,"MsgBody":[{"MsgType":"TIMTextElem","MsgContent":{"Text":"Private activate"}}]},
{"From_Account":"Test_1","GroupId":"@TGS#1FDFVPAE2","MsgTimestamp":1448975384,"MsgSeq":1,"MsgBody":[{"MsgType":"TIMTextElem","MsgContent":{"Text":"Private activate"}}]}
]}

The first line of the file records basic information about the file. Each following line records a message until the last line that ends with "]}". For the format of each message, see the definitions in TIMMsgElement Objects.

• If the file is small, you can use the JSON database to parse the entire file. MsgList indicates the message array for the specified period. For example:

# Python Example Code
import gzip, json
with gzip.open('1104620500_Group_2015120121.gz', 'rb') as fp:
  info = json.load(fp)
for msg in info['MsgList']:
  pass #do sth with msg

• If the file is large, we recommend that you parse it line by line. For example:

# Python Example Code
import gzip, json
with gzip.open('1104620500_Group_2015120121.gz', 'rb') as fp:
  cnt = -1
  for line in fp:
      line = line.strip().rstrip(b',')
      if line == b']}': break
      if cnt < 0:
          info = json.loads(line + b']}')
      else:
          msg = json.loads(line)
          #do sth with msg
      cnt += 1

API Commissioning Tool

Use the RESTful API online commissioning tool to commission this API.