wBAN -- Wrapped Banano

This projet is part of a bigger one allowing to swap Banano crypto to wBAN (Wrapped Banano) on Binance Smart Chain, and vice-versa.

wBAN is implemented as a BEP20 token.

This repository contains both the smart-contract code as well as the frontend.

Setup

Wallet setup

Copy the .env.default file as a .env file.

In the .env file change the mnemonic and write the one you are using with Metamask.

Next add a custom network in Metamask defined like this:

Start development node

Install all the project dependencies: yarn install.

Simply running yarn node:watch will compile and deploy the smart-contract on a Hardhat EVM.

Every time the source code of the smart-contract is changed, it is redeployed on this EVM.

Start frontend

In the frontend directory, install all the frontend dependencies: yarn install.

Then run yarn serve.

After frontend compilation, the dApp should be available at: http://localhost:8080.

Deployment Instructions

• Testnet: yarn deploy:testnet

v2.3.0

New Features

• gasless features for BSC and Fantom

  Bugs

• Invalid URL 'Add Liquidity' button to Sushiswap on Polygon #106

v2.2.2

Bugs

• gasless swap wasn't working when the exchange route involved the same source more than once

v2.2.1

New Features

• Italian translation

v2.2.0

New Features

• gasless onboarding
• translations for 10 more languages

  Improvements

• website metadata/preview image for Twitter, Discord, etc

v2.1.5

• NFT for first wBANniversary

v2.1.4

Improvements

• improved nft page with network detection and loading state

  Bugs

• error when clicking on Max links #102

v2.1.3

Improvements

• NFTs pages loads way faster!

v2.1.2

Improvements

• improved Onboard styling

  Bugs

• footer links on mobile not linked #97
• removed Ledger wallet connection option as it's not working

v2.1.1

Bugs

• History page: wrong dates for unwraps #95
• Updated SpookySwap URL #96

  Improvements

• Swaps page: load tokens list faster

v2.1.0

Improvements

• swaps also work with native crypto

v2.0.4

Bugs

• Link for View after a farm deposit transaction is broken #91

  Improvements

• new home page and better UX for connecting

v2.0.3

Bugs

• fix APR computation

  Improvements

• display both farm and liquidity pool TVL in the details section

v2.0.2

Bugs

• fix dialog checking for enough crypto balance before wrapping

v2.0.1

New Features

• swap page: slippage can be edited

  Improvements

• better footer on mobile

  Fixes

• BSC logo as favicon
• Typo

v2.0.0

New Features

• one app to rule them all

v1.5.2

Changes

• no need to update the dApp when farms are extended

v1.5.1

Bugs

• Fix swap features on Fantom #90

v1.5.0

• Deployment on Fantom

v1.4.0

New Features

• Embedded swaps with the help of 0x protocol #88

  Changes

• Polygon SushiSwap wBAN-WETH farms extended to 2022-03-26 3PM UTC.

v1.3.1

Changes

• Polygon SushiSwap wBAN-WETH farms extended to 2022-02-26 3PM UTC.

v1.3.0

Improvements

• New Web3 wallet provider #82
• Support for WalletConnect #77
• New setup page #81
• Display warning about blockchain fees is (un)wrapping up to 100 BAN #87
• Blacklist known BAN wallets used by exchanges #80
• Add link to NFT page #83
• Add Discord & Telegram links #25
• Add a link to GitBook documentation #47

  Bugs

• Welcome page - layout issue for BSC #84
• Missing crypto dialog not entirely visible on mobile #86

v1.2.3

Improvements

• Refresh button on farm #73

  Fixes

• Links to Polygon explorer don't work #78
• Action names not visible on mobile #76

  Changes

• Polygon SushiSwap wBAN-WETH farms extended to 2022-01-29 3PM UTC.

v1.2.2

New Features

• New page allowing to claim airdropped NFTs

v1.2.1

Changes

• Polygon SushiSwap wBAN-WETH farms extended to 2022-01-01 3PM UTC.

v1.2.0

Fixes

• New wrapping algorithm

  Changes

• Polygon SushiSwap wBAN-WETH farm extended to 2021-12-04 3PM UTC.

v1.1.9

Fixes

• Temporary switch to CoinGecko prices until the bridge is back online.

v1.1.8

Improvements

• Improve QR-Code scans by Kalium #74

v1.1.7

New Features

• New page allowing to blend airdropped NFTs

v1.1.6

Changes

• BSC PancakeSwap wBAN-BUSD farm extended to 2021-11-20 3PM UTC.

v1.1.5

Changes

• Polygon SushiSwap wBAN-WETH farms extended to 2021-11-06 3PM UTC.

  Improvements

• Copied harvest info to supply/withdrawal dialogs #72

v1.1.4

• Introduced new wBAN-BUSD farm on PancakeSwap

v1.1.3

Improvements

• Binance Smart Chain bridge use the same codebase now!

v1.1.2

Improvements

• Change default Matic RPC endpoint #71
• Give users notice that adding additional funds to a farm will trigger a harvest #70

v1.1.1

Improvements

• Lower MATIC balance requirement #68

  Bugs fixed

• Polygon version: replace BSC logo in top bar with Polygon one #69

v1.1.0

• Deployment on Polygon

v1.0.11

Changes

• wBAN-BNB and wBAN-BUSD farms extended to 2021-09-25 3PM UTC.

v1.0.10

Changes

• Changed maintenance messages and banner background.

v1.0.9

Changes

• wBAN-BNB and wBAN-BUSD farms extended to 2021-08-28 3PM UTC.

v1.0.8

Improvements

• Don't check BNB balance of user for unwraps #66

v1.0.7

Improvements

• Fetch wBAN and BNB prices from ApeSwap instead of CoinGecko #64

v1.0.6

Improvements

• Manage ended farms #62

v1.0.5

Changes

• Farms extended to 2021-07-31 3PM UTC.

v1.0.4

Improvements

• History button should have a label and a better tooltip #56
• Warn the user to not deposit more than 2 decimals #54
• Check BNB balance before a wrap #55
• Swap buttons and mainnet message #57
• Warn user to install MetaMask or use a compatible wallet #60

v1.0.3

Improvements

• Load prices from CoinGecko instead of PancakeSwap API #59

v1.0.2

Improvements

• Disable swap button if user has not at least 0.0006 BNB

v1.0.1

Improvements

• Rounding of deposit values
• Rounding of wBAN staking TVL

  Bugs fixed

• APR computations
• BAN price shouldn't be set to zero

v0.7.4

Improvements

• Remove time left value from all farms #46

  Bugs fixed

• Add a link to "wBAN Swaps" in burger menu #48
• Rounding error when clicking on "Max" #49

v0.7.3

Improvements

• Auto-reconnect with web3 provider on page reload + fix farms page reload #44

v0.7.2

Improvements

• Add swaps button with direct link to DEX #41
• For each farm, add a link to supply liquidity in the associated pool #42

  Bugs fixed

• Problem with farm page when reloading page #38
• "Max" links should put values rounded to two decimals #40

v0.7.1

Improvements

• Farm UX redesign #35

  Bugs fixed

• Farm: time left should be 0 and not increasing when the farm is done #32
• Farm: APR should be 0 when the farm ended or the allocation points are zero #33
• Add link to "Staking/Farming" page in the burger menu for mobiles #34

v0.7.0

New Features

• wBAN farms #29

v0.6.1

Bugs fixed

• Concurrency issues with pending withdrawals
• Routing error in JavaScript console #26

v0.6.0

New Features

• New smart-contract not requiring BNB deposits #23
• New page displaying history of deposits/withdrawals/swaps #20

  Improvements

• Display BAN price #11
• Add info symbols/buttons (i) tooltips to crypto vocabulary like total supply #19
• Notifications should timeout after 20 seconds #21

  Bugs fixed

• Can't make withdrawals/swaps with decimals and less than 1 (w)BAN #1
• Pending withdrawals job not processing all of them

v0.5.0

New Features

• Smart-contracts upgradeability #14
• Mobile compatibility and design improvements #9

  Improvements

• Logo in the top left corner should redirect to the swap page #6
• A big "connect" button should be added in the welcome page #5
• Version displayed in the toolbar should be linked to the changelog #3

v0.4.3

Improvements

• Setup page (accounts linking) should have a "copy BAN address button" #7
• BAN address in the setup page should be validated #8
• Don't allow swaps and withdrawals with more than 2 decimals #10
• Don't allow deposits with more than 2 decimals

  Bugs fixed

• Can't make withdrawals/swaps with decimals and less than 1 (w)BAN #1
• After a successful withdrawals the amount should be reset #2
• Small deposits of BAN don't work

v0.4.2

Improvements

• Decimal amounts in swaps and withdrawals
• Swap amounts reset after a swap
• Refresh balances button gone!

  Bugs fixed

• Scheduled jobs for missed BAN transactions from the WS API should work now
• Scheduled jobs for missed BAN transactions will fail in case there is a problem sending BAN back
• The backend should reconnect to the Banano WS API if there is a network failure/error
• Checks for amounts bigger than 0

v0.4.1

New Features

• withdrawal amount can be specified

  Improvements

• Swaps wBAN->BAN are not withdrawals anymore but increase in user deposits
• Notifications & dialogs for swaps
• Total supply is automatically updated when someone makes a swap

  Bugs fixed

• computation of hot/cold wallet splits

v0.4.0

New Features

• Pending withdrawals if hot wallet is running out of BAN

  Improvements

• Notifications
• Easy setup of BSC network

v0.2.3

Bugs fixed

• Critical bug allowing two different BSC users to claim the same BAN wallet
• Footer color on the setup process

v0.2.2

New Features

• BAN withdrawal
• New UI

  Improvements

• Notification display on successful transactions
• Responsive layout
• Dark mode enabled by default

v0.2.1

New Features

• Dark mode

  Improvements

• Notification on successful transactions

  Bugs fixed

• Title of the app in the browser window

v0.2.0

New Features

• Compatibility with MetaMask on Android

  Improvements

• setup process with responsive design
• Kalium links on mobiles for an easier way to make deposits
• changed color of the toolbar to the Banano green