Gr Fetch Record Fields JSON (#1568)

* Create  README.md

* Create script.js

Author: ashoo-jindal

GlideRecord/Get Record Fields in JSON/README.md

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+<h2>Get Record Fields in JSON</h2>
+
+<h3>Description</h3>
+<p>This code fetches all field values from a specified record in ServiceNow and returns them in a JSON format. This is ideal for exporting data or logging record details in a structured format. By simply passing in a table name and a <code>sys_id</code>, it retrieves and formats the fields, allowing for easy data handling.</p>
+
+<h3>Usage</h3>
+<p>Call the function and provide:</p>
+<ul>
+    <li><strong>tableName</strong> (String): The name of the table where the record is stored.</li>
+    <li><strong>sysId</strong> (String): The <code>sys_id</code> of the record to retrieve.</li>
+</ul>
+
+
+
+<h3>Example</h3>
+<p>In this example, we fetch all fields from a record in the <code>incident</code> table with a specified <code>sys_id</code> and log the result to the console.</p>
+<pre><code>
+var recordData = grFetchRecordFields('incident', 'sys_id_value');
+gs.info('Record Data: ' + recordData);
+</code></pre>
+
+<h4>Output</h4>
+<p>If the record with the specified <code>sys_id</code> exists, the output will be a JSON string containing all field names and their values. For example:</p>
+<pre><code>{
+    "number": "INC0010001",
+    "short_description": "Sample incident description",
+    "priority": "3",
+    "state": "New",
+    "assigned_to": "System Administrator",
+    ...
+}
+</code></pre>
+
+<h3>Benefits</h3>
+<ul>
+    <li><strong>Simplifies data retrieval</strong>: Quickly fetch all field values from a record without manually specifying each field.</li>
+    <li><strong>Easy JSON output</strong>: Ideal for logging or API responses where JSON format is needed.</li>
+    <li><strong>Reduces errors</strong>: Avoids repetitive code and minimizes the risk of missing fields during retrieval.</li>
+</ul>
+
+<h3>Notes</h3>
+<ul>
+    <li>Ensure <code>tableName</code> and <code>sysId</code> are valid to prevent runtime errors.</li>
+    <li>Use this with caution on tables with many fields to avoid performance issues.</li>
+</ul>

GlideRecord/Get Record Fields in JSON/script.js

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+//# Fetch all fields of a record and return as JSON
+function grFetchRecordFields(tableName, sysId) {
+    var result = {};
+    var gr = new GlideRecord(tableName);
+    if (gr.get(sysId)) {
+        var fields = gr.getFields();
+        for (var i = 0; i < fields.size(); i++) {
+            var fieldName = fields.get(i).getName();
+            result[fieldName] = gr.getValue(fieldName);
+        }
+    }
+    return JSON.stringify(result);
+}
+
+// Example Usage:
+var recordData = grFetchRecordFields('incident', 'sys_id_value');
+gs.info('Record Data: ' + recordData);