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47 lines
1.8 KiB
47 lines
1.8 KiB
module.exports = getBuyEthUrl
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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.network The network for which to return a url
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* @param {string} opts.amount The amount of ETH to buy on coinbase. Only relevant if network === '1'.
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* @param {string} opts.address The address the bought ETH should be sent to. Only relevant if network === '1'.
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* @returns {string|undefined} The url at which the user can access ETH, while in the given network. If the passed
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* network does not match any of the specified cases, or if no network is given, returns undefined.
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*
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*/
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function getBuyEthUrl ({ network, amount, address, service }) {
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// default service by network if not specified
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if (!service) service = getDefaultServiceForNetwork(network)
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switch (service) {
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case 'wyre':
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return `https://dash.sendwyre.com/sign-up`
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case 'coinswitch':
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return `https://metamask.coinswitch.co/?address=${address}&to=eth`
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case 'coinbase':
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return `https://buy.coinbase.com/?code=9ec56d01-7e81-5017-930c-513daa27bb6a&amount=${amount}&address=${address}&crypto_currency=ETH`
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case 'metamask-faucet':
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return 'https://faucet.metamask.io/'
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case 'rinkeby-faucet':
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return 'https://www.rinkeby.io/'
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case 'kovan-faucet':
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return 'https://github.com/kovan-testnet/faucet'
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}
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throw new Error(`Unknown cryptocurrency exchange or faucet: "${service}"`)
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}
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function getDefaultServiceForNetwork (network) {
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switch (network) {
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case '1':
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return 'wyre'
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case '3':
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return 'metamask-faucet'
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case '4':
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return 'rinkeby-faucet'
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case '42':
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return 'kovan-faucet'
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}
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throw new Error(`No default cryptocurrency exchange or faucet for networkId: "${network}"`)
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}
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