WaitUntilEventActivityAPI-link-tracking.html

%%[
SET @emailAddress = AttributeValue("emailaddr")

/* if needed, fetch other parameters passed from the CloudPagesURL function*/

IF NOT EMPTY(@emailAddress) THEN
]%%
    
<script runat="server">
Platform.Load("Core", "1");
try {
  
    var email = Variable.GetValue("@emailAddress")
    
    //authenticate to get access token
    var authEndpoint = 'https://{{your endpoint}}.auth.marketingcloudapis.com/'  //add your tenant specific endpoint
    var payload = {
        client_id: {{client Id}},            //add your client id
        client_secret:{{client Secret}},     //add your client secret
        grant_type: "client_credentials"
    };
    var url = authEndpoint + '/v2/token'
    var contentType = 'application/json'

    var accessTokenRequest = HTTP.Post(url, contentType, Stringify(payload));
    if (accessTokenRequest.StatusCode == 200) {
        var tokenResponse = Platform.Function.ParseJSON(accessTokenRequest.Response[0]);
        var accessToken = tokenResponse.access_token
        var rest_instance_url = tokenResponse.rest_instance_url
    };

    //make api call to release subscriber from the Wait Until Activity
    if (email != null && accessToken != null) {
        var headerNames = ["Authorization"];
        var headerValues = ["Bearer " + accessToken];
        var jsonBody = {
            "ContactKey": {{ContactKey}},                      //pass the Contact Key
            "EventDefinitionKey": {{Wait Until Activity API Key}},   //add the Wait Until Activity API Key
            "Data": {
                //in the payload pass any data required in your data extension and 
               //include the data as defined in the filter criteria in Wait Until Activity definition
            }
        };

        var requestUrl = rest_instance_url + "/interaction/v1/events";

        var fireEntryEvent = HTTP.Post(requestUrl, contentType, Stringify(jsonBody), headerNames, headerValues);
        var respo = fireEntryEvent.Response.toString();
   
      if (fireEntryEvent.StatusCode == 201) {
        Redirect('https://www.salesforce.com',false);  //define the link where subscriber should be redirected
      }
    };

} catch (error) {
    Write("<br><h2>Sorry, something went wrong.</h2><br>" + Stringify(error));
}
</script>
%%[ELSE]%%
Sorry, something went wrong.
%%[ENDIF]%%