Fixes #259 Request body Examples JSON should be stringified

Author: mrin9

src/components/api-request.js

@@ -412,14 +412,14 @@ export default class ApiRequest extends LitElement {
                     spellcheck = "false"
                     data-ptype = "${reqBody.mimeType}" 
                     style="width:100%; resize:vertical;"
-                  >${v.exampleValue}</textarea>
+                  >${(v.exampleFormat === 'text' ? v.exampleValue : JSON.stringify(v.exampleValue, null, 2))}</textarea>
                   <!-- This textarea(hidden) is to store the original example value, this will remain unchanged when users switches from one example to another, its is used to populate the editable textarea -->
                   <textarea 
                     class = "textarea request-body-param ${reqBody.mimeType.substring(reqBody.mimeType.indexOf('/') + 1)}" 
                     spellcheck = "false"
                     data-ptype = "${reqBody.mimeType}" 
                     style="width:100%; resize:vertical; display:none"
-                  >${v.exampleValue}</textarea>
+                  >${(v.exampleFormat === 'text' ? v.exampleValue : JSON.stringify(v.exampleValue, null, 2))}</textarea>
                 </div>  
               `)}