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114 lines
3.9 KiB
114 lines
3.9 KiB
import log from 'loglevel';
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import { METASWAP_CHAINID_API_HOST_MAP } from '../../../shared/constants/swaps';
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import {
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GOERLI_CHAIN_ID,
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KOVAN_CHAIN_ID,
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MAINNET_CHAIN_ID,
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RINKEBY_CHAIN_ID,
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ROPSTEN_CHAIN_ID,
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} from '../../../shared/constants/network';
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import { SECOND } from '../../../shared/constants/time';
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import getFetchWithTimeout from '../../../shared/modules/fetch-with-timeout';
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import { TRANSAK_API_KEY } from '../constants/on-ramp';
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const fetchWithTimeout = getFetchWithTimeout(SECOND * 30);
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/**
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* Create a Wyre purchase URL.
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* @param {String} address Ethereum destination address
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* @returns String
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*/
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const createWyrePurchaseUrl = async (address) => {
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const fiatOnRampUrlApi = `${METASWAP_CHAINID_API_HOST_MAP[MAINNET_CHAIN_ID]}/fiatOnRampUrl?serviceName=wyre&destinationAddress=${address}`;
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const wyrePurchaseUrlFallback = `https://pay.sendwyre.com/purchase?dest=ethereum:${address}&destCurrency=ETH&accountId=AC-7AG3W4XH4N2&paymentMethod=debit-card`;
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try {
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const response = await fetchWithTimeout(fiatOnRampUrlApi, {
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method: 'GET',
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headers: {
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'Accept': 'application/json',
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'Content-Type': 'application/json',
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},
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});
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const parsedResponse = await response.json();
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if (response.ok && parsedResponse.url) {
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return parsedResponse.url;
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}
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log.warn('Failed to create a Wyre purchase URL', parsedResponse);
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} catch (err) {
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log.warn('Failed to create a Wyre purchase URL', err);
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}
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return wyrePurchaseUrlFallback; // In case the API call would fail, we return a fallback URL for Wyre's Checkout.
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};
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/**
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* Create a Transak Checkout URL.
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* API docs here: https://www.notion.so/Query-Parameters-9ec523df3b874ec58cef4fa3a906f238
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* @param {String} address Ethereum destination address
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* @returns String
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*/
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const createTransakUrl = (address) => {
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const queryParams = new URLSearchParams({
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apiKey: TRANSAK_API_KEY,
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hostURL: 'https://metamask.io',
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defaultCryptoCurrency: 'ETH',
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walletAddress: address,
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});
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return `https://global.transak.com/?${queryParams}`;
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};
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/**
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* Gives the caller a url at which the user can acquire eth, depending on the network they are in
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*
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* @param {Object} opts - Options required to determine the correct url
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* @param {string} opts.chainId - The chainId for which to return a url
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* @param {string} opts.address - The address the bought ETH should be sent to. Only relevant if chainId === '0x1'.
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* @returns {string|undefined} The url at which the user can access ETH, while in the given chain. If the passed
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* chainId does not match any of the specified cases, or if no chainId is given, returns undefined.
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*
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*/
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export default async function getBuyEthUrl({ chainId, address, service }) {
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// default service by network if not specified
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if (!service) {
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// eslint-disable-next-line no-param-reassign
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service = getDefaultServiceForChain(chainId);
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}
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switch (service) {
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case 'wyre':
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return await createWyrePurchaseUrl(address);
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case 'transak':
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return createTransakUrl(address);
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case 'metamask-faucet':
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return 'https://faucet.metamask.io/';
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case 'rinkeby-faucet':
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return 'https://www.rinkeby.io/';
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case 'kovan-faucet':
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return 'https://github.com/kovan-testnet/faucet';
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case 'goerli-faucet':
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return 'https://goerli-faucet.slock.it/';
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default:
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throw new Error(
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`Unknown cryptocurrency exchange or faucet: "${service}"`,
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);
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}
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}
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function getDefaultServiceForChain(chainId) {
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switch (chainId) {
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case MAINNET_CHAIN_ID:
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return 'wyre';
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case ROPSTEN_CHAIN_ID:
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return 'metamask-faucet';
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case RINKEBY_CHAIN_ID:
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return 'rinkeby-faucet';
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case KOVAN_CHAIN_ID:
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return 'kovan-faucet';
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case GOERLI_CHAIN_ID:
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return 'goerli-faucet';
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default:
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throw new Error(
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`No default cryptocurrency exchange or faucet for chainId: "${chainId}"`,
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);
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}
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}
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