new: LxLy.js implementation

.github/ISSUE_TEMPLATE/bug-report---.md

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+---
+name: "Bug report \U0001F41E"
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.  
+
+#### Hint
+
+* You can write what you are expecting and what is currently happening
+* You can includes steps to reproduce
+* Add screenshot
+* Create an issue reproducible public repo and share with us

.github/ISSUE_TEMPLATE/config.yml

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+contact_links:
+  - name: Ask Question 🙋
+    url: https://github.com/0xpolygon/lxly.js/discussions/categories/q-a
+    about: Have any doubt ? Ask your question 
+  - name: Show & Tell ⚡
+    url: https://github.com/0xpolygon/lxly.js/discussions/categories/show-and-tell
+    about: Show everyone what you have made. This will motivate other users & us.
+  - name: Ideas
+    url: https://github.com/0xpolygon/lxly.js/discussions/categories/ideas
+    about: Have some idea, let's discuss.
+  - name: General - anything
+    url: https://github.com/0xpolygon/lxly.js/discussions/categories/general
+    about: Share anything with us. It might be an article, news or anything which is beneficial for community.

.github/ISSUE_TEMPLATE/feature-request---.md

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+---
+name: "Feature request \U0001F680"
+about: Suggest a feature for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+## Summary
+
+Brief explanation of the feature.
+
+### Basic example
+
+Include a basic example or links here.
+
+### Motivation
+
+Why are we doing this? What use cases does it support? What is the expected outcome?

.github/workflows/ci.yml

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+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [10.x, 12.x, 14.x]
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Install dependencies
+        run: npm ci
+      - name: Check lint
+        run: npm run lint
+      - name: Build
+        run: npm run deploy

.gitignore

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+node_modules
+lib
+.DS_Store
+*.log
+dump.rdb
+
+test-blockchain/geth
+test-blockchain/history
+test-blockchain/data/**
+!test-blockchain/data/.gitkeep
+*.env
+bundle.js
+dist
+
+*.tgz
+config.json
+.nuxt
+docs

.lintstagedrc

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+{
+  "**/*.+(js|jsx|css|less|scss|ts|tsx|md)": [
+    "prettier --write",
+    "git add"
+  ]
+}

.npmignore

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+node_modules
+lib
+*.tgz
+src
+build_helper
+test
+*.env
+examples
+webpack
+docs
+test

.nvmrc

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+v11.1.0

.prettierignore

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+node_modules
+build
+dist

.prettierrc

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+{
+  "printWidth": 120,
+  "proseWrap": "preserve",
+  "semi": false,
+  "singleQuote": true,
+  "useTabs": false,
+  "tabWidth": 2,
+  "arrowParens": "avoid",
+  "trailingComma": "es5"
+}

CONTRIBUTING.md

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+# Contributing to lxly.js
+
+1. [Clone](https://help.github.com/articles/cloning-a-repository/) this repository to your local machine.
+2. Checkout new branch to start development `git checkout -b <branch-name>`.
+
+_Branch naming convention:_
+- Feature - `feat_custom_token`
+- Release/Build - `release_2.1` or `v2.1`
+- Fix/Bug - `fix_unknown_token` or `fixes` (if more than one)
+
+_Note: No strict convention while naming branch, but try to keep it meaningful for your team members to understand._
+
+3. Add files to be committed and then commit changes to your local machine `git commit -m <commit-message>`
+
+_Commit message convention:_
+- Feature - `feat: integrate token balances`
+- Release/Build - `chore: release v2.1` or `chore: bump version to 2.1`
+- Fix/Bug - `fix: token balances` or `fix: token list, transfers` (if more than one)
+
+_Note: Keep commit message meaningful for your team members to understand while reviewing merge/pull request._
+
+6. Push changes to remote repository `git push origin <branch-name>`
+
+7. Create a merge/pull request against `master` branch.
+
+_Note: Don't push changes to `master` branch directly. Write proper description of the changes while creating merge/pull request_

LICENSE

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+MIT License
+
+Copyright (c) 2024 Polygon Labs
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# LxLy SDK
+
+[![GitHub version](https://badge.fury.io/gh/0xpolygon%2Flxly.js.svg)](https://badge.fury.io/gh/0xpolygon%2Flxly.js)
+![Build Status](https://github.com/0xpolygon/lxly.js/workflows/CI/badge.svg?branch=master)
+[![npm version](https://badge.fury.io/js/%400xpolygon%2Flxlyjs.svg)](https://badge.fury.io/js/%400xpolygon%2Flxlyjs)
+![GitHub](https://img.shields.io/github/license/0xpolygon/lxly.js)
+[![TEST](https://github.com/0xpolygon/lxly.js/actions/workflows/test.yml/badge.svg)](https://github.com/0xpolygon/lxly.js/actions/workflows/test.yml)
+
+This repository contains the `lxlyjs` client library. `lxlyjs` makes it easy for developers, who may not be deeply familiar with smart contract development, to interact with the various components of Polygon LxLy Aggregator bridge.
+
+This library will help developers to move assets between Ethereum chain and Polygon CDK chains.
+
+## Support
+
+Our [Discord](https://discord.gg/0xPolygonDevs) is the best way to reach us ✨.
+
+## Contributors
+
+You are very welcome to contribute, please see contributing guidelines - [[Contribute](CONTRIBUTING.md)].
+
+Thank you to all the people who already contributed to lxly.js!
+
+<a href="https://github.com/0xpolygon/lxly.js/graphs/contributors">
+  <img src="https://contrib.rocks/image?repo=0xpolygon/lxly.js" />
+</a>
+
+Made with [contributors-img](https://contrib.rocks).
+
+## Development
+
+**Setup**
+
+```bash
+npm ci
+```
+
+**How to debug**
+
+Write your code inside file `test/debug.js` and run below code
+
+```bash
+npm run debug
+```
+
+Above command will build the source code & install the built version into test folder, which will be used by `debug.js`.
+
+**Lint**
+
+```bash
+# To check lint errors
+npm run lint
+
+# To fix most common lint errors
+# Note that it might not fix all errors, some need manual intervention
+npm run lint:fix
+```
+
+**Build code**
+
+```bash
+npm run build
+```
+
+**Run test**
+
+```bash
+npm run test
+```
+
+**Generate distribution files**
+
+```bash
+npm run deploy
+```
+
+**NPM publish**
+
+Before running publish script, make sure you have updated version properly.
+
+Note that `prepublishOnly` script will be automatically called while publishing. It will check lint, clean dist/lib folders and build fresh distribution files before it executes `npm publish`.
+
+```bash
+npm publish
+```
+
+### License
+
+MIT

SECURITY.md

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+# Polygon Technology Security Information
+
+## Link to vulnerability disclosure details (Bug Bounty).
+- Websites and Applications: https://hackerone.com/polygon-technology
+- Smart Contracts: https://immunefi.com/bounty/polygon
+
+## Languages that our team speaks and understands.
+Preferred-Languages: en
+
+## Security-related job openings at Polygon.
+https://polygon.technology/careers
+
+## Polygon security contact details.
+[email protected]
+
+## The URL for accessing the security.txt file.
+Canonical: https://polygon.technology/security.txt

build_helper/npm.export.js

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+if (process.env.NODE_ENV === 'production') {
+  module.exports = require('./lxly.node.min.js')
+} else {
+  module.exports = require('./lxly.node.js')
+}