(feat) standard endpoints & consolidate protocol library functions

.env.example

@@ -22,8 +22,10 @@ TERRA_CHAIN={testnet_chain_id}
 # Ethereum
 # - chain: mainnet, kovan, etc
 # - rpc url: infura or other rpc url
+# - token list: erc20 token list source (ref: https://tokenlists.org/)
 ETHEREUM_CHAIN={chain}
 ETHEREUM_RPC_URL=https://{chain}.infura.io/v3/{api_key}
+ETHEREUM_TOKEN_LIST_URL=https://wispy-bird-88a7.uniswap.workers.dev/?url=http://tokens.1inch.eth.link
 
 # Balancer
 # subgraph_chain
@@ -41,9 +43,11 @@ EXCHANGE_PROXY={exchange_proxy}
 
 # Uniswap
 # Reference: https://uniswap.org/docs/v2/smart-contracts/router02/
+# UniswapV2Router02 is deployed at 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D on the Ethereum mainnet, and the Ropsten, Rinkeby, Görli, and Kovan testnets. 
+# It was built from commit 6961711.
 UNISWAP_ROUTER=0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
 # allowed slippage for swap transactions
-UNISWAP_ALLOWED_SLIPPAGE=1
+UNISWAP_ALLOWED_SLIPPAGE=1.5
 # restrict updating pairs that have no reserves or failed for 5 minutes
 UNISWAP_NO_RESERVE_CHECK_INTERVAL=300000
 # cache info about pair for 1 second
@@ -57,5 +61,23 @@ CERT_PASSPHRASE={passphrase}
 # default to ./logs if path is not set
 LOG_PATH=/Users/hbot/hummingbot_files/hummingbot_logs
 
-# GMT offset
-GMT_OFFSET=-0800
+# GMT offset for logging (alpine docker image default to UTC timezone)
+# -0800, -0500, +0200, +0800
+GMT_OFFSET=+0800
+
+# EthGasStation
+# API key for defipulse.com gas station API
+# Gas level you want to use for Ethereum transactions (fast, fastest, safeLow, average)
+ENABLE_ETH_GAS_STATION=true
+ETH_GAS_STATION_API_KEY={apikey}
+ETH_GAS_STATION_GAS_LEVEL=fast
+ETH_GAS_STATION_REFRESH_TIME=60
+MANUAL_GAS_PRICE=100
+
+# Balancer Config
+BALANCER_MAX_SWAPS=4
+
+
+# Perpetual Finance Provider URL
+# default:  https://dai.poa.network , https://rpc.xdaichain.com, etc
+XDAI_PROVIDER={providerUrl}

Dockerfile

@@ -5,6 +5,14 @@ RUN apk add --no-cache tzdata
 
 # Set labels
 LABEL application="gateway-api"
+LABEL branch=${BRANCH}
+LABEL commit=${COMMIT}
+LABEL date=${BUILD_DATE}
+
+# Set ENV variables
+ENV COMMIT_BRANCH=${BRANCH}
+ENV COMMIT_SHA=${COMMIT}
+ENV BUILD_DATE=${DATE}
 
 # app directory
 WORKDIR /usr/src/app

package.json

@@ -12,15 +12,16 @@
     "test": "echo \"Error: no test specified\" && exit 1"
   },
   "dependencies": {
-    "@perp/contract": "^1.0.6",
     "@balancer-labs/sor": "^0.3.3",
+    "@perp/contract": "^1.0.6",
     "@terra-money/terra.js": "^0.5.8",
     "@uniswap/sdk": "^3.0.3",
     "app-root-path": "^3.0.0",
     "axios": "^0.21.1",
     "bignumber.js": "^9.0.0",
     "body-parser": "^1.19.0",
     "capture-console": "^1.0.1",
+    "cross-fetch": "^3.0.6",
     "debug": "^4.2.0",
     "dotenv": "^8.2.0",
     "ethers": "^5.0.14",
@@ -29,11 +30,11 @@
     "helmet": "^4.1.1",
     "http-status-codes": "^2.1.3",
     "lodash": "^4.17.20",
+    "mathjs": "^9.3.0",
     "moment": "^2.29.1",
     "util": "^0.12.3",
     "winston": "^3.3.3",
-    "winston-daily-rotate-file": "^4.5.0",
-    "cross-fetch": "^3.0.6"
+    "winston-daily-rotate-file": "^4.5.0"
   },
   "devDependencies": {
     "@babel/core": "^7.11.6",
@@ -47,5 +48,8 @@
     "eslint-plugin-standard": "^4.0.1",
     "nodemon": "^2.0.4"
   },
+  "engines": {
+    "node": "10.x"
+  },
   "type": "module"
 }

src/app.js

@@ -40,14 +40,14 @@ app.use(bodyParser.urlencoded({ extended: true }));
 
 app.use(validateAccess)
 
-// mount all routes to this path
-app.use('/uniswap', uniswapRoutes);
+// mount routes to specific path
 app.use('/api', apiRoutes);
 app.use('/eth', ethRoutes);
-// app.use('/celo', celoRoutes);
+app.use('/eth/uniswap', uniswapRoutes);
+app.use('/eth/balancer', balancerRoutes);
 app.use('/terra', terraRoutes);
-app.use('/balancer', balancerRoutes);
 app.use('/perpfi', perpFiRoutes);
+// app.use('/celo', celoRoutes);
 
 app.get('/', (req, res, next) => {
   res.send('ok')