Unable to find JSON data using the Javascript Kafka Magic Tool, as no results are being

In JSON format, I have a message that contains various details. My goal is to utilize Javascript search functionality to identify if the EmailAddress matches the specific value I am looking for within hundreds of similar messages:

 "Message": {
          "Event": {
            "Type": "INFO",
            "IsSuccessful": true,
            "Details": {
              "Value": "{\"EmailAddress\":\"<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="bfcbdacccbffcbdacccb91dcd0d2">[email protected]</a>\",\"SystemId\":\"5\"}"
            }

This is the code snippet I have been using:

function findItem(items) {
    
    if (!items) return console.log('failed');
    for (i=0; i < items.length; i++) {
        if (items[i].Event.Details.Value.EmailAddress === "<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="0c78697f784c78697f78226f6361">[email protected]</a>\") return console.log('found');
    } 
    return console.log('fail 2');
}

return findItem(Context.Message);

I seem to be encountering an issue as my search function is not triggering the console.log('found')

UPDATE* I would like to mention that this scenario involves the use of Kafka Magic Tool - https://www.kafkamagic.com/usage/development/#:~:text=validating%20a%20producer.-,Use%20JavaScript%20queries%20to%20search%20for%20a%20message,fields%2C%20headers%2C%20and%20metadata.

javascriptjson

Answer №1

items[i].Event.Details.Value contains JSON data that needs to be decoded using JSON.parse() before you can access the .EmailAddress property.

You can use a function like the one below for this purpose:

function findItem(items) {
    if (!items) return false;
    for (i=0; i < items.length; i++) {
        let parsedDetails = JSON.parse(items[i].Event.Details.Value);
        if (parsedDetails.EmailAddress === "<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="99edfceaedd9edfceaedb7faf6f4">[email protected]</a>") {
            console.log('found', items[i]);
            return true;
        }
    }
    return false;
}

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