fix: use js-yaml for both JSON to YAML and YAML to JSON (gchq#2710)

Author: bartvanandel

package-lock.json

@@ -142,6 +142,7 @@
     "jquery": "3.7.1",
     "js-ascon": "^1.3.0",
     "js-sha3": "^0.12.0",
+    "js-yaml": "^5.2.3",
     "jsesc": "^3.1.0",
     "json5": "^2.2.3",
     "jsonata": "^2.2.2",

package.json

@@ -6,7 +6,7 @@
 
 import Operation from "../Operation.mjs";
 import OperationError from "../errors/OperationError.mjs";
-import YAML from "yaml";
+import { dump } from "js-yaml";
 
 /**
  * JSON to YAML operation
@@ -35,9 +35,9 @@ class JSONtoYAML extends Operation {
      */
     run(input, args) {
         try {
-            return YAML.stringify(input);
+            return dump(input);
         } catch (err) {
-            throw new OperationError("Test");
+            throw new OperationError("Unable to stringify YAML: " + err);
         }
     }
 

src/core/operations/JSONtoYAML.mjs

@@ -6,7 +6,8 @@
 
 import Operation from "../Operation.mjs";
 import OperationError from "../errors/OperationError.mjs";
-import jsYaml from "js-yaml";
+import { load } from "js-yaml";
+
 /**
  * YAML to JSON operation
  */
@@ -34,7 +35,7 @@ class YAMLToJSON extends Operation {
      */
     run(input, args) {
         try {
-            return jsYaml.load(input);
+            return load(input);
         } catch (err) {
             throw new OperationError("Unable to parse YAML: " + err);
         }