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Price Oracle

Configuration

In subgraph.yaml, add the following code snippet inside the abis section of the datasources which is going to fetch prices of token using the Price Oracle. NOTE: Include the following code snippet in each of the datasources, that is dependent on the Price Oracle and update imports in each file inside oracle folder.

###########################################
############## Price Oracle ###############
###########################################
# ERC20
- name: _ERC20
  file: ./abis/Prices/ERC20.json
# Curve Contracts
- name: CurvePool
  file: ./abis/Prices/Curve/Pool.json
- name: CurveRegistry
  file: ./abis/Prices/Curve/Registry.json
- name: CalculationsCurve
  file: ./abis/Prices/Calculations/Curve.json
# YearnLens Contracts
- name: YearnLensContract
  file: ./abis/Prices/YearnLens.json
# Aave Oracle Contract
- name: AaveOracleContract
  file: ./abis/Prices/AaveOracle.json
# SushiSwap Contracts
- name: CalculationsSushiSwap
  file: ./abis/Prices/Calculations/SushiSwap.json
# ChainLink Contracts
- name: ChainLinkContract
  file: ./abis/Prices/ChainLink.json
# Uniswap Contracts
- name: UniswapRouter
  file: ./abis/Prices/Uniswap/Router.json
- name: UniswapFactory
  file: ./abis/Prices/Uniswap/Factory.json
- name: UniswapPair
  file: ./abis/Prices/Uniswap/Pair.json

Usage

Following are some ways through which you can get the prices of tokens:

import { BigDecimal } from "@graphprotocol/graph-ts";
import { getUsdPricePerToken, getUsdPrice } from "../Oracle";

// Method 1
// Using function getUsdPricePerToken(tokenAddr: Address): CustomPriceType

let tokenPrice: BigDecimal;
let fetchPrice = getUsdPricePerToken(tokenAddr);

// fetchPrice.reverted: Bool
// fetchPrice.usdPrice: BigDecimal
// fetchPrice.decimals: number

tokenPrice = fetchPrice.usdPrice * amount

// Method 2
// Using function getUsdPrice(tokenAddr: Address, amount: BigDecimal): BigDecimal

let tokenPrice = getUsdPrice(tokenAddr, amount);

Optimizations

  • Reorder the methods present in index.ts, depending on which method works best for you.

Folder Structure

Prices
├── calculations
│   ├── CalculationsCurve.ts
│   └── CalculationsSushiSwap.ts
├── common
│   ├── types.ts
│   ├── constants.ts
│   └── utils.ts
├── config
│   ├── arbitrum.ts
│   ├── aurora.ts
│   ├── avalanche.ts
│   ├── bsc.ts
│   ├── fantom.ts
│   ├── gnosis.ts
│   ├── harmony.ts
│   ├── mainnet.ts
│   ├── moonbeam.ts
│   ├── optimism.ts
│   └── polygon.ts
├── oracles
│   ├── AaveOracle.ts
│   ├── ChainLinkFeed.ts
│   └── YearnLensOracle.ts
├── routers
│   ├── CurveRouter.ts
│   └── UniswapForksRouter.ts
│── README.md
└── index.ts

Development Status

🔨 = In progress.
🛠 = Feature complete. Additional testing required. MultiCall = If the method uses more than two JSON RPC Call.

Arbitrum

Method Address StartBlock MultiCall
YearnLens 0x043518ab266485dc085a1db095b8d9c2fc78e9b9 2396321 ❎
AaveOracle 0xb56c2F0B653B2e0b10C9b928C8580Ac5Df02C7C7 7740843 ❎
Curve 0x3268c3bda100ef0ff3c2d044f23eab62c80d78d2 11707234 ❎
SushiSwap 0x5ea7e501c9a23f4a76dc7d33a11d995b13a1dd25 2396120 ❎
CurveRouters
0x445FE580eF8d70FF569aB36e80c647af338db351 1362056 ✅
0x0E9fBb167DF83EdE3240D6a5fa5d40c6C6851e15 4530115 ✅
UniswapForks
0x1b02da8cb0d097eb8d57a175b88c7d8b47997506 73 ✅

Aurora

Method Address StartBlock MultiCall
CurveRouters
0x5B5CFE992AdAC0C9D48E05854B2d91C73a003858 62440525 ✅
UniswapForks
0x2CB45Edb4517d5947aFdE3BEAbF95A582506858B ✅

Avalanche

Method Address StartBlock MultiCall
AaveOracle 0xEBd36016B3eD09D4693Ed4251c67Bd858c3c7C9C 11970477 ❎
CurveRouters
0x8474DdbE98F5aA3179B3B3F5942D724aFcdec9f6 5254206 ✅
0x90f421832199e93d01b64DaF378b183809EB0988 9384663 ✅
UniswapForks
0x60aE616a2155Ee3d9A68541Ba4544862310933d4 2486393 ✅
0xE54Ca86531e17Ef3616d22Ca28b0D458b6C89106 56879 ✅
0x1b02dA8Cb0d097eB8D57A175b88c7D8b47997506 506236 ✅

BSC

Method Address StartBlock MultiCall
UniswapForks
0x10ED43C718714eb63d5aA57B78B54704E256024E 6810080 ✅
0x05fF2B0DB69458A0750badebc4f9e13aDd608C7F 586899 ✅

Fantom

Method Address StartBlock MultiCall
YearnLens 0x57aa88a0810dfe3f9b71a9b179dd8bf5f956c46a 17091856 ❎
Curve 0x0b53e9df372e72d8fdcdbedfbb56059957a37128 27067399 ❎
SushiSwap 0x44536de2220987d098d1d29d3aafc7f7348e9ee4 3809480 ❎
CurveRouters
0x0f854EA9F38ceA4B1c2FC79047E9D0134419D5d6 5655918 ✅
0x4fb93D7d320E8A263F22f62C2059dFC2A8bCbC4c 27552509 ✅
UniswapForks
0xbe4fc72f8293f9d3512d58b969c98c3f676cb957 3796241 ✅
0x16327E3FbDaCA3bcF7E38F5Af2599D2DDc33aE52 4250168 ✅
0x1b02da8cb0d097eb8d57a175b88c7d8b47997506 2457904 ✅

Gnosis

Method Address StartBlock MultiCall
CurveRouters
0x55E91365697EB8032F98290601847296eC847210 20754886 ✅
0x8A4694401bE8F8FCCbC542a3219aF1591f87CE17 23334728 ✅
UniswapForks
0x1b02dA8Cb0d097eB8D57A175b88c7D8b47997506 14735910 ✅

Harmony

Method Address StartBlock MultiCall
AaveOracle 0x3c90887ede8d65ccb2777a5d577beab2548280ad 23930344 ❎
CurveRouters
0x0a53FaDa2d943057C47A301D25a4D9b3B8e01e8E 18003250 ✅
UniswapForks
0x1b02dA8Cb0d097eB8D57A175b88c7D8b47997506 11256069 ✅

Mainnet

Method Address StartBlock MultiCall
YearnLens 0x83d95e0d5f402511db06817aff3f9ea88224b030 12242339 ❎
ChainLink 0x47Fb2585D2C56Fe188D0E6ec628a38b74fCeeeDf 12864088 ❎
Curve 0x25BF7b72815476Dd515044F9650Bf79bAd0Df655 12370088 ❎
SushiSwap 0x8263e161A855B644f582d9C164C66aABEe53f927 12692284 ❎
CurveRouters
0x7D86446dDb609eD0F5f8684AcF30380a356b2B4c 11154794 ✅
0x8F942C20D02bEfc377D41445793068908E2250D0 13986752 ✅
UniswapForks
0xd9e1cE17f2641f24aE83637ab66a2cca9C378B9F 10794261 ✅
0x7a250d5630b4cf539739df2c5dacb4c659f2488d 10207858 ✅

Moonbeam

Method Address StartBlock MultiCall
CurveRouters
0xC2b1DF84112619D190193E48148000e3990Bf627 1452049 ✅
UniswapForks
0x1b02dA8Cb0d097eB8D57A175b88c7D8b47997506 503734 ✅

Optimism

Method Address StartBlock MultiCall
YearnLens 0xb082d9f4734c535d9d80536f7e87a6f4f471bf65 18109291 ❎
AaveOracle 0xD81eb3728a631871a7eBBaD631b5f424909f0c77 4365625 ❎
Curve 0x0ffe8434eae67c9838b12c3cd11ac4005daa7227 18368996 ❎
SushiSwap 0x5fd3815dcb668200a662114fbc9af13ac0a55b4d 18216910 ❎
CurveRouters
0xC5cfaDA84E902aD92DD40194f0883ad49639b023 2373837 ✅
0x7DA64233Fefb352f8F501B357c018158ED8aA455 3729171 ✅
UniswapForks
0x9c12939390052919aF3155f41Bf4160Fd3666A6f 19702709 ✅

Polygon

Method Address StartBlock MultiCall
AaveOracle 0xb023e699F5a33916Ea823A16485e259257cA8Bd1 25825996 ❎
CurveRouters
0x094d12e5b541784701FD8d65F11fc0598FBC6332 13991825 ✅
0x47bB542B9dE58b970bA50c9dae444DDB4c16751a 23556360 ✅
UniswapForks
0xa5e0829caced8ffdd4de3c43696c57f7d7a678ff 4931900 ✅
0x1b02dA8Cb0d097eB8D57A175b88c7D8b47997506 11333235 ✅