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RESTful API Overview

Last updated: 2022-05-18 14:25:38

    RESTful APIs are HTTP management APIs that provide the app backend with a management entry. For more information about RESTful APIs that IM supports, see RESTful API List.
    In addition to RESTful APIs, the app console also supports simple data management and one-to-one/group messaging. Developers can manage, check, and test data in the console. Even though RESTful APIs are less user-friendly, they provide powerful management capabilities.
    For security concerns, RESTful APIs are supported over HTTPS only.

    Prerequisites

    Before you call a RESTful API, complete the following operations:

    1. Create an app in the IM console. For more information, see Creating and Upgrading an Application.
    2. Assign an admin account to the app. For more information, see the Configuring Account Admins section in Basic Configuration.
    Note:

    To avoid unnecessary call errors, use the admin account to call a RESTful API.

    Calling Method

    Request URL

    The URL format of a RESTful API is as follows:

    https://xxxxxx/$ver/$servicename/$command?sdkappid=$SDKAppID&identifier=$identifier&usersig=$usersig&random=99999999&contenttype=json
    

    The descriptions and values ​​of parameters are as follows (parameter names and parameter values ​​are case-sensitive):

    Parameter Description Value
    https Request protocol The request protocol is HTTPS, and the request method is POST.
    xxxxxx Exclusive domain name 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
  • India: adminapiind.im.qcloud.com
  • ver Protocol version number Always v4.
    servicename Internal service name. Different values of servicename correspond to different service types. Example:
    For v4/im_open_login_svc/account_import, im_open_login_svc is the servicename.
    For more information, see RESTful API List.
    command Command word. This parameter is used with the servicename parameter to identify a specific service feature. Example:
    For v4/im_open_login_svc/account_import, account_import is the command.
    For more information, see RESTful API List.
    sdkappid App ID obtained in the IM console You can obtain the SDKAppID when applying for IM access.
    identifier Username, which must be the app admin account when a RESTful API is called For more information, see the App Admin section in Login Authentication.
    usersig Password that corresponds to the username For more information, see Generating UserSig.
    random A parameter used to identify the current request A random 32-bit unsigned integer ranging from 0 to 4,294,967,295
    contenttype Request format Always json.
    Note:

    • When the app server calls a RESTful API, identifier must be the app admin account.
    • The app can generate a UserSig for the admin account each time it calls a RESTful API or generate a fixed UserSig for reuse within period of validity.

    HTTP request body format

    RESTful APIs only support the POST method, and its request body is in JSON format. For more information about the request body format, see the detailed description of each API.
    Note that POST request bodies cannot be empty. Even when no information is required in a request body, the request body still needs to carry an empty JSON object ({}).

    HTTP return code

    The returned HTTP status code for RESTful APIs is always 200 unless a network error (such as error 502) occurs. The specific error code and error message are included in the HTTP response body.

    HTTP response body format

    The RESTful API response body is in the JSON format and has the following elements:

    {
       "ActionStatus": "OK", 
       "ErrorInfo": "", 
       "ErrorCode": 0
       // Other RESTful API response content
    }
    

    The response body must contain the ActionStatus, ErrorInfo, and ErrorCode fields. These three fields are described as follows:

    Field Type Description
    ActionStatus String Request result. OK: Successful; FAIL: Failed. If the request fails, the cause of failure is displayed in the ErrorInfo field.
    ErrorInfo String Failure causes
    ErrorCode Integer Error code. 0: Successful; other values: Failed. For more information, see Error Codes.

    Sample Call

    The following example shows how to use the RESTful API to get all groups in an app.

    HTTPS request:

    POST /v4/group_open_http_svc/get_appid_group_list?usersig=xxx&identifier=admin&sdkappid=88888888&random=99999999&contenttype=json HTTP/1.1
    Host: console.tim.qq.com
    Content-Length: 22
    {
       "Limit": 2
    }
    

    HTTPS response:

    HTTP/1.1 200 OK
    Server: nginx/1.7.10
    Date: Fri, 09 Oct 2015 02:59:55 GMT
    Content-Length: 156
    Connection: keep-alive
    Access-Control-Allow-Origin: *
    Access-Control-Allow-Headers: X-Requested-With
    Access-Control-Allow-Methods: POST
    {
       "ActionStatus": "OK", 
       "ErrorCode": 0, 
       "GroupIdList": [
           {
               "GroupId": "@TGS#1YTTZEAEG"
           }, 
           {
               "GroupId": "@TGS#1KVTZEAEZ"
           }
       ], 
       "TotalCount": 58530
    }
    

    RESTful API Common Error Codes

    Error Code Description
    60002 HTTP parsing error. Check the URL format of the HTTP request.
    60003 JSON parsing error. Check the JSON format of the HTTP request.
    60004 Account or signature error in the request URL or JSON request body.
    60005 Account or signature error in the request URL or JSON request body.
    60006 Invalid SDKAppID. Check the validity of SDKAppID.
    60007 RESTful API call frequency limit exceeded. Reduce your request frequency.
    60008 Service request timeout or HTTP request format error. Check and try again.
    60009 Request resource error. Check the request URL.
    60010 The request requires app admin permissions.
    60011 SDKAppID request frequency exceeded. Reduce your request frequency.
    60012 SDKAppID is required for RESTful APIs. Check the SDKAppID parameter in the URL.
    60013 JSON parsing error in the HTTP response body.
    60014 Account switching timeout.
    60015 Invalid account type in the request body. Make sure that the account is in string format.
    60016 The SDKAppID is disabled.
    60017 The request is disabled.
    60018 Too many requests. Try again later.
    60019 Too many requests. Try again later.
    60020 Your Pro Edition plan has expired and been disabled. Please purchase the plan again. The new plan will take effect five minutes after successful purchase.
    60021 The source IP of the RESTful API call is invalid.

    FAQs

    The RESTful API request timed out and no response was received.

    1. The timeout period specified for the RESTful API in the IM backend is three seconds. You need to specify a timeout period that is longer than three seconds.
    2. Run telnet console.tim.qq.com 443 to check whether the service port is accessible.
    3. Run curl -I https://console.tim.qq.com to check whether the status code is 200.
    4. Check whether the machine uses a private or public DNS server. If the machine uses a private DNS server, make sure that the DNS server egress is in the same region as the ISP to which the egress IP of the machine belongs.
    5. You are advised to use the "persistent connection+connection pool" mode.
      Note:

      It is recommended that you use a RESTful API persistent connection to connect to the SDK. The reason is that it takes a long time to establish HTTPS non-persistent connections because each request causes TCP+TLS handshake overhead.
      For scenario where a standard HTTP library is used: for HTTP 1.0, the request header Connection: keep-alive needs to be specified; for HTTP 1.1, persistent connections are supported by default; for scenarios where HTTPS requests are encapsulated based on TCP, TCP connections can be reused to send and receive requests.

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