Preserve 'constructor' keyword in json-bigint and add console.warn on…

… decode error (#1109)

* WIP

* Set constructorAction: 'preserve' and use JSONBigNative const to get options

* Remove commented out code

* Add unit test

* Fix lint issue and unit test

src/lib/utilities/decode-payload.test.ts

@@ -83,7 +83,16 @@ const JsonObjectEncoded = {
   data: 'eyAiVHJhbnNmb3JtZXIiOiAiT3B0aW11c1ByaW1lIiB9',
 };
 
+const JsonObjectEncodedWithConstructor = {
+  metadata: {
+    encoding: 'anNvbi9wbGFpbg==',
+    type: 'S2V5d29yZA==',
+  },
+  data: 'eyAiQ29uc3RydWN0b3JPdXRwdXQiOiAiT3B0aW11c1ByaW1lIiB9',
+};
+
 const JsonObjectDecoded = { Transformer: 'OptimusPrime' };
+const JsonObjectDecodedWithConstructor = { ConstructorOutput: 'OptimusPrime' };
 
 describe('decodePayload', () => {
   it('Should not decode a payload with encoding binary/encrypted', () => {
@@ -106,6 +115,11 @@ describe('decodePayload', () => {
   it('Should decode a json payload with encoding json/plain', () => {
     expect(decodePayload(JsonObjectEncoded)).toEqual(JsonObjectDecoded);
   });
+  it('Should decode a json payload with constructor keyword with encoding json/plain', () => {
+    expect(decodePayload(JsonObjectEncodedWithConstructor)).toEqual(
+      JsonObjectDecodedWithConstructor,
+    );
+  });
 });
 
 describe('decode all potential payloads', () => {

src/lib/utilities/decode-payload.ts

@@ -46,6 +46,7 @@ export function decodePayload(
     try {
       return parseWithBigInt(atob(String(payload?.data ?? '')));
     } catch (_e) {
+      console.warn('Could not parse payload: ', _e);
       // Couldn't correctly decode this just let the user deal with the data as is
     }
   }

src/lib/utilities/parse-with-big-int.ts

@@ -1,13 +1,15 @@
 import JSONbig from 'json-bigint';
 
-JSONbig({
+const JSONBigNative = JSONbig({
   useNativeBigInt: true,
+  constructorAction: 'preserve',
 });
 
-export const parseWithBigInt = (content: string) => JSONbig.parse(content);
+export const parseWithBigInt = (content: string) =>
+  JSONBigNative.parse(content);
 
 export const stringifyWithBigInt = <T = unknown>(
   value: T,
   replacer?: (key: string, value: T) => T,
   space?: string | number,
-) => JSONbig.stringify(value, replacer, space);
+) => JSONBigNative.stringify(value, replacer, space);