Created
November 17, 2020 03:52
-
-
Save johhonn/ff3e8fb62a8aff6100f7fcbac6a802cd to your computer and use it in GitHub Desktop.
uniswap-oracle-sdk example
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // happy coding 👻 | |
| import * as OracleSdk from '@keydonix/uniswap-oracle-sdk' | |
| import * as OracleSdkAdapter from '@keydonix/uniswap-oracle-sdk-adapter' | |
| import Web3 from 'web3' | |
| require('dotenv').config() | |
| type JsonRpcObject = { jsonrpc: '2.0', id: number | string | null, method: string, params?: unknown[] | object } | |
| type SendAsyncProvider = { sendAsync: (request: JsonRpcObject, callback: (error: unknown, result: unknown) => void) => Promise<unknown> } | |
| type RequestProvider = { request: (method: string, params?: unknown[] | object) => Promise<unknown> } | |
| type Provider = SendAsyncProvider | RequestProvider | |
| let URL=process.env.INFURA as string | |
| Web3.providers.HttpProvider.prototype.sendAsync = Web3.providers.HttpProvider.prototype.send | |
| const web3Provider = new Web3(new Web3.providers.HttpProvider(URL)) | |
| const getStorageAt = OracleSdkAdapter.getStorageAtFactory( web3Provider.currentProvider as Provider ) | |
| const getProof = OracleSdkAdapter.getProofFactory(web3Provider.currentProvider as Provider) | |
| const getBlockByNumber = OracleSdkAdapter.getBlockByNumberFactory(web3Provider.currentProvider as Provider ) | |
| console.log(Web3.providers.HttpProvider.prototype.sendAsync) | |
| // estimate the moving average price off-chain for presentation in your UI | |
| const uniswapExchangeAddress=0x514906fc121c7878424a5c928cad1852cc545892n | |
| const denominationTokenAddress=0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48n | |
| let blockNumber; | |
| web3Provider.eth.getBlockNumber().then((blockNumber:number)=>{ | |
| console.log(blockNumber) | |
| OracleSdk.getProof(getStorageAt, getProof, getBlockByNumber, uniswapExchangeAddress, denominationTokenAddress, BigInt(blockNumber)).then((r)=>{ | |
| console.log(r) | |
| }) | |
| }) | |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment