https://github.com/thanhnguyennguyen/uniswap-price
get token price from uniswap
https://github.com/thanhnguyennguyen/uniswap-price
price uniswap uniswap-v2
Last synced: 2 months ago
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get token price from uniswap
- Host: GitHub
- URL: https://github.com/thanhnguyennguyen/uniswap-price
- Owner: thanhnguyennguyen
- Created: 2020-09-15T04:13:22.000Z (about 5 years ago)
- Default Branch: master
- Last Pushed: 2021-01-23T12:25:58.000Z (over 4 years ago)
- Last Synced: 2024-12-01T02:41:18.601Z (10 months ago)
- Topics: price, uniswap, uniswap-v2
- Language: JavaScript
- Homepage:
- Size: 13.7 KB
- Stars: 43
- Watchers: 3
- Forks: 19
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# uniswap-price [](https://badge.fury.io/js/uniswap-price)
get token price from uniswap
## Install
```
npm i --save uniswap-price
```
## Usage
Note: WETH address is `0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2`
- **getMidPrice(sourceToken, sourceDecimal, destToken, destDecimal, chainId, infuraKey)**: return the reference price
- **getExecutionPrice(sourceToken, sourceDecimal, destToken, destDecimal, chainId, infuraKey)**: return the exact price for the trade with your specified amount
- **getMidPriceViaETH(sourceToken, sourceDecimal, destToken, destDecimal, chainId, infuraKey)**: return the reference price using route via ETH
- **getExecutionPriceViaETH(sourceToken, sourceDecimal, destToken, destDecimal, chainId, infuraKey)**: return the exact price for the trade with your specified amount using route via ETH
- **getMidPriceViaExactToken(sourceToken, sourceDecimal, destToken, destDecimal, pivotToken, pivotTokenDecimal, chainId, infuraKey)**: return the reference price using route via ExactToken
- **getExecutionPriceViaExactToken(sourceToken, sourceDecimal, destToken, destDecimal, pivotToken, pivotTokenDecimal, chainId, infuraKey)**: return the exact price for the trade with your specified amount using route via ExactToken
### Arguments
- sourceToken: address of source token
- sourceDecimal: decimal of source token
- destToken: address of destination token
- destDecimal: decimal of destination token
- pivotToken: the token used for routing
- pivotTokenDecimal: decimal of the token used for routing
- chainId: default 1 (Ethereum mainnet 1)
- infuraKey: default empty means that we are using defaultProvider with limited request
```nodejs
const uniswapPrice = require('uniswap-price')
const main = async () => {
let data
data = await uniswapPrice.getMidPrice("0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2", 18, "0x6B175474E89094C44Da98b954EedeAC495271d0F", 18)
console.log(data)
data = await uniswapPrice.getExecutionPrice("0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2", 18, "0x6B175474E89094C44Da98b954EedeAC495271d0F", 18, "1000000000000000000")
console.log(data)
data = await uniswapPrice.getMidPriceViaETH("0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48", 6, "0x6B175474E89094C44Da98b954EedeAC495271d0F", 18)
console.log(data)
data = await uniswapPrice.getExecutionPriceViaETH("0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48", 6, "0x6B175474E89094C44Da98b954EedeAC495271d0F", 18, "1000000000")
console.log(data)
let USDC = "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
USDCDecimal = 6
// getMidPrice via USDC Token
// route: 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 -> USDC -> 0x6B175474E89094C44Da98b954EedeAC495271d0F
data = await uniswapPrice.getMidPriceViaExactToken("0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48", 6, "0x6B175474E89094C44Da98b954EedeAC495271d0F", 18, USDC, USDCDecimal)
console.log(data)
}
```