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Merge pull request #432 from trustlines-protocol/update_eip1559
Try to make test pass with EIP1559
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,150 @@ | ||
| import { AddressZero } from '@ethersproject/constants' | ||
| import { | ||
| Amount, | ||
| EstimationResponse, | ||
| SafeMetaTransaction, | ||
| SafeMultisigTxResponse, | ||
| SafeTransactionFees, | ||
| TransactionStatus, | ||
| TransactionStatusObject | ||
| } from '../typings' | ||
| import utils from '../utils' | ||
| import { Provider } from './Provider' | ||
|
|
||
| export class SafeRelayProvider extends Provider { | ||
| public ApiUrl: string | ||
| public WsApiUrl: string | ||
|
|
||
| public async plainFetch(endpoint: string) { | ||
| const response = await fetch(`${this.ApiUrl}/${endpoint}`) | ||
| return response | ||
| } | ||
|
|
||
| /** | ||
| * Returns a JSON response from the REST API of the server. | ||
| * | ||
| * We overload this method since the safe relay server from gnosis doesn't like | ||
| * urls with a trimmed slash at the end. | ||
| * | ||
| * @param endpoint Endpoint to fetch. | ||
| * @param options Optional fetch options. | ||
| */ | ||
| public async fetchEndpoint<T>( | ||
| endpoint: string, | ||
| options?: object | ||
| ): Promise<T> { | ||
| return utils.fetchUrl<T>(`${this.ApiUrl}/${endpoint}`, options) | ||
| } | ||
|
|
||
| public async getSafeNonce(safeAddress: string): Promise<number> { | ||
| const response = await this.plainFetch(`v1/safes/${safeAddress}/`) | ||
|
|
||
| if (response.status === 200) { | ||
| const json = await response.json() | ||
| return json.nonce | ||
| } | ||
|
|
||
| throw new Error(`Error fetching safe nonce: ${response.status}`) | ||
| } | ||
|
|
||
| /** | ||
| * Returns the fees the provider would be willing to pay for the transaction | ||
| * @param metaTransaction Meta transaction to be relayed | ||
| * @returns The fees value and currency network of fees for given meta transaction | ||
| */ | ||
| public async getMetaTxFees( | ||
| metaTransaction: SafeMetaTransaction | ||
| ): Promise<SafeTransactionFees> { | ||
| const data = { | ||
| safe: metaTransaction.safe, | ||
| to: metaTransaction.to, | ||
| value: metaTransaction.value, | ||
| data: metaTransaction.data, | ||
| operation: metaTransaction.operation | ||
| } | ||
|
|
||
| const response: EstimationResponse = await this.postToEndpoint( | ||
| `v2/safes/${metaTransaction.safe}/transactions/estimate/`, | ||
| data | ||
| ) | ||
|
|
||
| return { | ||
| safeTxGas: response.safeTxGas, | ||
| baseGas: response.baseGas, | ||
| gasPrice: response.gasPrice, | ||
| refundReceiver: response.refundReceiver, | ||
| gasToken: response.gasToken || AddressZero | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Send the given signed meta-transaction to a relay server to execute it on the | ||
| * blockchain and returns a `Promise` with the transaction hash. | ||
| * @param signedMetaTransaction Signed meta-transaction to be sent to the relay server | ||
| * @returns The hash of the transaction sent by the relay server, not to be confused with the hash of the meta-transaction | ||
| */ | ||
| public async sendSignedMetaTransaction( | ||
| signedMetaTransaction: SafeMetaTransaction | ||
| ): Promise<any> { | ||
| const response: any = await this.postToEndpoint( | ||
| `v1/safes/${signedMetaTransaction.safe}/transactions/`, | ||
| signedMetaTransaction | ||
| ) | ||
|
|
||
| return response.txHash | ||
| } | ||
|
|
||
| /** | ||
| * Returns implementation address of identity with given address | ||
| * @param address Address of identity | ||
| * @returns the implementation address currently in use by the given identity | ||
| */ | ||
| public async getIdentityImplementationAddress( | ||
| address: string | ||
| ): Promise<string> { | ||
| const { masterCopy } = await this.fetchEndpoint<any>(`v1/safes/${address}`) | ||
| return masterCopy | ||
| } | ||
|
|
||
| public async getMetaTxStatus( | ||
| safeAddress: string, | ||
| transactionHash: string | ||
| ): Promise<TransactionStatusObject> { | ||
| try { | ||
| const response: SafeMultisigTxResponse = await this.fetchEndpoint( | ||
| `/v1/safes/${safeAddress}/transactions/?safe_tx_hash=${transactionHash}` | ||
| ) | ||
|
|
||
| if (response.results.length) { | ||
| const tx = response.results[0] | ||
| const status = tx.metaTxSuccessful | ||
| return { | ||
| status: status ? TransactionStatus.Success : TransactionStatus.Failure | ||
| } | ||
| } | ||
| } catch (e) { | ||
| if (e.message.includes('Status 404')) { | ||
| return { status: TransactionStatus.NotFound } | ||
| } | ||
| return { status: TransactionStatus.Failure } | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Returns balance of given address. | ||
| * @param address Address to determine balance for. | ||
| */ | ||
| public async getBalance(address: string): Promise<Amount> { | ||
| // return utils.formatToAmount(0, 18) | ||
| try { | ||
| const response: Array<{ | ||
| tokenAddress: string | null | ||
| balance: string | ||
| }> = await this.fetchEndpoint(`/v1/safes/${address}/balances`) | ||
|
|
||
| return utils.formatToAmount(response[0].balance, 18) | ||
| } catch (e) { | ||
| return utils.formatToAmount(0, 18) | ||
| } | ||
| } | ||
| } |
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