EMA C++ UserAuthn Authentication Example

This EMA C++ example demonstrates how to get tokens from a token generate and use retrieved tokens to login to ADS. For more information, please refer to this article.

The example uses the curl library to get tokens and uses cJSON to parse response messages.

The example requires the following parameters.

Options:
  -?                            Shows this usage

  -authurl <authurl>            Required: Authentication URL to get a token (e.g. http://<AuthServer>:8443/getToken)
  -username <username>          Required: Username
  -password <password>          Required: Password
  -service <service name>       Required: Service name
  -item <ric>                   Optional: A RIC

For example:

CPPAuthExample -authurl "http://localhost:8443/getToken" -username authuser1 -password password -service ELEKTRON_DD -item PTT.BK

The output is:

Following options are selected:
appId = 256
authurl = http://localhost:8443/getToken
username = authuser1
password = *****
service = ELEKTRON_DD
item = PTT.BK
{"success":true,"message":"Enjoy your token!","token":"20QsEiJAi0yZfI6n9LsYkOge2k"}
True
20QsEiJAi0yZfI6n9LsYkOge2k
loggerMsg
    TimeStamp: 15:26:16.601
    ClientName: ChannelCallbackClient
    Severity: Success
    Text:    Received ChannelUp event on channel Channel_1
        Instance Name Consumer_1_1
        Connected component version: ads3.5.3.L1.linux.rrg 64-bit
loggerMsgEnd


Received login refresh message

RefreshMsg
    streamId="1"
    domain="Login Domain"
    Solicited
    RefreshComplete
    ClearCache
    state="Open / Ok / None / 'Login accepted by host replablinux5.'"
    itemGroup="00 00"
    name="wasin"
    nameType="1"
    Attrib dataType="ElementList"
        ElementList
            ElementEntry name="ApplicationId" dataType="Ascii" value="256"
            ElementEntry name="ApplicationName" dataType="Ascii" value="ADS"
            ElementEntry name="Position" dataType="Ascii" value="192.168.0.184/net"
            ElementEntry name="ProvidePermissionProfile" dataType="UInt" value="0"
            ElementEntry name="ProvidePermissionExpressions" dataType="UInt" value="1"
            ElementEntry name="SingleOpen" dataType="UInt" value="1"
            ElementEntry name="AllowSuspectData" dataType="UInt" value="1"
            ElementEntry name="SupportOMMPost" dataType="UInt" value="1"
            ElementEntry name="SupportBatchRequests" dataType="UInt" value="1"
            ElementEntry name="SupportEnhancedSymbolList" dataType="UInt" value="1"
            ElementEntry name="SupportViewRequests" dataType="UInt" value="1"
            ElementEntry name="SupportStandby" dataType="UInt" value="0"
            ElementEntry name="SupportOptimizedPauseResume" dataType="UInt" value="0"
            ElementEntry name="AuthenticationTTReissue" dataType="UInt" value="1637660744"
            ElementEntry name="AuthenticationErrorCode" dataType="UInt" value="0"
            ElementEntry name="AuthenticationErrorText" dataType="Ascii" value="Success"
        ElementListEnd

    AttribEnd
RefreshMsgEnd


Received refresh

RefreshMsg
    streamId="5"
    domain="MarketPrice Domain"
    Solicited
    RefreshComplete
    ClearCache
    state="Open / Ok / None / 'All is well'"
    itemGroup="00 02"
    permissionData="03 11 A7 67 61 C0"
    qos="RealTime/TickByTick"
    seqNum="45008"
    name="PTT.BK"
    nameType="1"
    serviceId="4519"
    serviceName="ELEKTRON_DD"
    Payload dataType="FieldList"
        FieldList FieldListNum="2" DictionaryId="1"
            FieldEntry fid="1" name="PROD_PERM" dataType="UInt" value="6761"
            FieldEntry fid="2" name="RDNDISPLAY" dataType="UInt" value="142"
            FieldEntry fid="3" name="DSPLY_NAME" dataType="Rmtes" value="PTT"
            FieldEntry fid="4" name="RDN_EXCHID" dataType="Enum" value="158"
            FieldEntry fid="5" name="TIMACT" dataType="Time" value="08:26:21:000:000:000"
            FieldEntry fid="6" name="TRDPRC_1" dataType="Real" value="37.25"
            FieldEntry fid="7" name="TRDPRC_2" dataType="Real" value="37.25"
            FieldEntry fid="8" name="TRDPRC_3" dataType="Real" value="37.25"
            FieldEntry fid="9" name="TRDPRC_4" dataType="Real" value="37.25"
            FieldEntry fid="10" name="TRDPRC_5" dataType="Real" value="37.25"
            FieldEntry fid="11" name="NETCHNG_1" dataType="Real" value="0.00"
            FieldEntry fid="12" name="HIGH_1" dataType="Real" value="37.75"
            FieldEntry fid="13" name="LOW_1" dataType="Real" value="37.00"
            FieldEntry fid="14" name="PRCTCK_1" dataType="Enum" value="1"
            FieldEntry fid="15" name="CURRENCY" dataType="Enum" value="764"
            FieldEntry fid="16" name="TRADE_DATE" dataType="Date" value="23 NOV 2021"