better error handling

lib/parser.js

@@ -59,7 +59,7 @@ async function parse (filePath) {
       content = JSON.stringify(filePath);
     } else {
       console.error(`Could not find a valid asyncapi definition: ${filePath}`);
-      throw `Could not find a valid asyncapi definition: ${filePath}`;
+      throw new Error(`Could not find a valid asyncapi definition: ${filePath}`);
     }
   } catch (e) {
     console.error('Can not load the content of the AsyncAPI specification file');
@@ -104,17 +104,25 @@ async function parse (filePath) {
 };
 
 async function parseText (content) {
-  const parsedContent = parseContent(content);
-  if (typeof parsedContent !== 'object' || parsedContent === null) {
-    throw new Error('Invalid YAML content.');
-  }
-  const dereferencedJSON = await dereference(parsedContent);
-  const bundledJSON = await bundle(dereferencedJSON);
-  const asyncAPIschema = require('asyncapi')[bundledJSON.asyncapi];
+  let parsedStringified;
 
-  const parsed = await validate(bundledJSON, asyncAPIschema);
+  try {
+    const parsedContent = parseContent(content);
+    if (typeof parsedContent !== 'object' || parsedContent === null) {
+      throw new Error('Invalid YAML content.');
+    }
+    const dereferencedJSON = await dereference(parsedContent);
+    const bundledJSON = await bundle(dereferencedJSON);
+    const asyncAPIschema = require('asyncapi')[bundledJSON.asyncapi];
 
-  return JSON.parse(JSON.stringify(parsed));
+    const parsed = await validate(bundledJSON, asyncAPIschema);
+
+    parsedStringified = JSON.parse(JSON.stringify(parsed));
+  } catch (e) {
+    throw e;
+  }
+
+  return parsedStringified
 };
 
 module.exports = parse;