Support node.js

[hackerwins]

Description:

General JS SDK supports not only Browser but also NodeJS(For example, Firebase JS SDK works well with NodeJS: Link).

However, the Yorkie JS SDK has yet to implement support for browsers only. Let's make it work well in NodeJS as well.

Why:

• Users using NodeJS can also use Yorkie.

[CharlesSampson44]

import xhr2 from "xhr2";
global.XMLHttpRequest = xhr2;

and it works...

[blurfx]

I've done some research and it looks like xhr2 could be a way to use yorkie-js-sdk in node.js, but it's not a clean way because the yorkie-js-sdk needs to verify that you are in a node environment and set the xhr2 shim.

Also grpc-webusesXMLHttpRequest, so I don't think we'll be able to support it anytime soon.

So, I think using connect-web(#375) instead of grpc-web is better way.

[hackerwins]

Related to yorkie-team/yorkie#668

[hackerwins]

It would be also beneficial to support Node.js in the Yorkie JS SDK for MongoDB migration during Yorkie updates.

Currently, Operations are encoded in Protobuf and stored in the DB. This makes it challenging to update operations in the MongoDB built-in JavaScript environment. However, MongoDB scripts allow loading external scripts using require. Enabling Node.js support in the Yorkie JS SDK and loading it in MongoDB scripts would facilitate direct utilization of operation encoding and decoding for data modification.

• https://www.mongodb.com/docs/mongodb-shell/write-scripts/require-load-differences/