Details

In the BSON library our EJSON stringifiy method defers to JSON.stringify for JS Map serialization which doesn't support inspecting the keys internal to a Map. We should add support that mirrors the support in BSON to fetch the key value pairs out of a Map and turn it into a JSON string.

Non-string keys should throw an error.

NODE-4122 Is related, fixing the replacer logic would likely make adding map support straight forward. (if map -> Object.fromEntries(map))

AC

• EJSON.stringify will turn Maps into the typical curly braced key value pair sequence of a JSON object
• Add tests equivalent to our BSON map usage