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Merge pull request hummingbot#352 from hummingbot/staging
sync / gateway staging -> master for Hummingbot gateway version 2.0.1
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Original file line number | Diff line number | Diff line change |
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import abi from '../ethereum/ethereum.abi.json'; | ||
import { logger } from '../../services/logger'; | ||
import { Contract, Transaction, Wallet } from 'ethers'; | ||
import { EthereumBase } from '../ethereum/ethereum-base'; | ||
import { getEthereumConfig as getCeloConfig } from '../ethereum/ethereum.config'; | ||
import { Provider } from '@ethersproject/abstract-provider'; | ||
import { Ethereumish } from '../../services/common-interfaces'; | ||
import { ConfigManagerV2 } from '../../services/config-manager-v2'; | ||
import { EVMController } from '../ethereum/evm.controllers'; | ||
import { UniswapConfig } from '../../connectors/uniswap/uniswap.config'; | ||
|
||
export class Celo extends EthereumBase implements Ethereumish { | ||
private static _instances: { [name: string]: Celo }; | ||
private _gasPrice: number; | ||
private _gasPriceRefreshInterval: number | null; | ||
private _nativeTokenSymbol: string; | ||
private _chain: string; | ||
public controller; | ||
|
||
private constructor(network: string) { | ||
const config = getCeloConfig('celo', network); | ||
super( | ||
'celo', | ||
config.network.chainID, | ||
config.network.nodeURL, | ||
config.network.tokenListSource, | ||
config.network.tokenListType, | ||
config.manualGasPrice, | ||
config.gasLimitTransaction, | ||
ConfigManagerV2.getInstance().get('server.nonceDbPath'), | ||
ConfigManagerV2.getInstance().get('server.transactionDbPath') | ||
); | ||
this._chain = config.network.name; | ||
this._nativeTokenSymbol = config.nativeCurrencySymbol; | ||
|
||
this._gasPrice = config.manualGasPrice; | ||
|
||
this._gasPriceRefreshInterval = | ||
config.network.gasPriceRefreshInterval !== undefined | ||
? config.network.gasPriceRefreshInterval | ||
: null; | ||
|
||
this.updateGasPrice(); | ||
this.controller = EVMController; | ||
} | ||
|
||
public static getInstance(network: string): Celo { | ||
if (Celo._instances === undefined) { | ||
Celo._instances = {}; | ||
} | ||
if (!(network in Celo._instances)) { | ||
Celo._instances[network] = new Celo(network); | ||
} | ||
|
||
return Celo._instances[network]; | ||
} | ||
|
||
public static getConnectedInstances(): { [name: string]: Celo } { | ||
return Celo._instances; | ||
} | ||
|
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// getters | ||
|
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public get gasPrice(): number { | ||
return this._gasPrice; | ||
} | ||
|
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public get nativeTokenSymbol(): string { | ||
return this._nativeTokenSymbol; | ||
} | ||
|
||
public get chain(): string { | ||
return this._chain; | ||
} | ||
|
||
getContract(tokenAddress: string, signerOrProvider?: Wallet | Provider) { | ||
return new Contract(tokenAddress, abi.ERC20Abi, signerOrProvider); | ||
} | ||
|
||
getSpender(reqSpender: string): string { | ||
let spender: string; | ||
if (reqSpender === 'uniswap') { | ||
spender = UniswapConfig.config.uniswapV3SmartOrderRouterAddress( | ||
'celo', | ||
this._chain, | ||
); | ||
} else if (reqSpender === 'uniswapLP') { | ||
spender = UniswapConfig.config.uniswapV3NftManagerAddress('celo', this._chain); | ||
} else { | ||
spender = reqSpender; | ||
} | ||
return spender; | ||
} | ||
|
||
// cancel transaction | ||
async cancelTx(wallet: Wallet, nonce: number): Promise<Transaction> { | ||
logger.info( | ||
'Canceling any existing transaction(s) with nonce number ' + nonce + '.' | ||
); | ||
return super.cancelTxWithGasPrice(wallet, nonce, this._gasPrice * 2); | ||
} | ||
|
||
/** | ||
* Automatically update the prevailing gas price on the network. | ||
*/ | ||
async updateGasPrice(): Promise<void> { | ||
if (this._gasPriceRefreshInterval === null) { | ||
return; | ||
} | ||
|
||
const gasPrice = await this.getGasPrice(); | ||
if (gasPrice !== null) { | ||
this._gasPrice = gasPrice; | ||
} else { | ||
logger.info('gasPrice is unexpectedly null.'); | ||
} | ||
|
||
setTimeout( | ||
this.updateGasPrice.bind(this), | ||
this._gasPriceRefreshInterval * 1000 | ||
); | ||
} | ||
|
||
async close() { | ||
await super.close(); | ||
if (this._chain in Celo._instances) { | ||
delete Celo._instances[this._chain]; | ||
} | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,41 @@ | ||
import { | ||
mkRequestValidator, | ||
mkValidator, | ||
RequestValidator, | ||
Validator, | ||
validateAmount, | ||
validateToken, | ||
validateTokenSymbols, | ||
} from '../../services/validators'; | ||
import { | ||
isAddress, | ||
validateNonce, | ||
validateAddress, | ||
} from '../ethereum/ethereum.validators'; | ||
|
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export const invalidSpenderError: string = | ||
'The spender param is not a valid Celo address (0x followed by 40 hexidecimal characters).'; | ||
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// given a request, look for a key called spender that is 'uniswap' or an Ethereum address | ||
export const validateSpender: Validator = mkValidator( | ||
'spender', | ||
invalidSpenderError, | ||
|
||
(val) => | ||
typeof val === 'string' && | ||
(val === 'uniswap' || | ||
val === 'uniswapLP' || | ||
isAddress(val)) | ||
); | ||
|
||
export const validateCeloApproveRequest: RequestValidator = | ||
mkRequestValidator([ | ||
validateAddress, | ||
validateSpender, | ||
validateToken, | ||
validateAmount, | ||
validateNonce, | ||
]); | ||
|
||
export const validateCeloAllowancesRequest: RequestValidator = | ||
mkRequestValidator([validateAddress, validateSpender, validateTokenSymbols]); |
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