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authorPaul Bouchon <mail@bitpshr.net>2018-11-14 03:57:43 +0800
committerGitHub <noreply@github.com>2018-11-14 03:57:43 +0800
commit0549782595335e8257d1b4abf7d6220020e2c8db (patch)
tree57c439742e2f608534bd8e247c6ff1bc19dcdf5b /app/scripts
parent3866222285be74c6578c830001b4896705abdb3d (diff)
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Update Balanc3 API (#5744)
* Update balanc3 API used in TokenRatesController * Remove demo URL and use nativeCurrency when fetching token rates
Diffstat (limited to 'app/scripts')
-rw-r--r--app/scripts/controllers/token-rates.js38
-rw-r--r--app/scripts/metamask-controller.js1
2 files changed, 16 insertions, 23 deletions
diff --git a/app/scripts/controllers/token-rates.js b/app/scripts/controllers/token-rates.js
index b6f084841..a8936f13b 100644
--- a/app/scripts/controllers/token-rates.js
+++ b/app/scripts/controllers/token-rates.js
@@ -14,8 +14,9 @@ class TokenRatesController {
*
* @param {Object} [config] - Options to configure controller
*/
- constructor ({ interval = DEFAULT_INTERVAL, preferences } = {}) {
+ constructor ({ interval = DEFAULT_INTERVAL, currency, preferences } = {}) {
this.store = new ObservableStore()
+ this.currency = currency
this.preferences = preferences
this.interval = interval
}
@@ -26,33 +27,24 @@ class TokenRatesController {
async updateExchangeRates () {
if (!this.isActive) { return }
const contractExchangeRates = {}
- // copy array to ensure its not modified during iteration
- const tokens = this._tokens.slice()
- for (const token of tokens) {
- if (!token) return log.error(`TokenRatesController - invalid tokens state:\n${JSON.stringify(tokens, null, 2)}`)
- const address = token.address
- contractExchangeRates[address] = await this.fetchExchangeRate(address)
+ const nativeCurrency = this.currency ? this.currency.getState().nativeCurrency.toUpperCase() : 'ETH'
+ const pairs = this._tokens.map(token => `pairs[]=${token.address}/${nativeCurrency}`)
+ const query = pairs.join('&')
+ if (this._tokens.length > 0) {
+ try {
+ const response = await fetch(`https://exchanges.balanc3.net/pie?${query}&autoConversion=true`)
+ const { prices = [] } = await response.json()
+ prices.forEach(({ pair, price }) => {
+ contractExchangeRates[pair.split('/')[0]] = typeof price === 'number' ? price : 0
+ })
+ } catch (error) {
+ log.warn(`MetaMask - TokenRatesController exchange rate fetch failed.`, error)
+ }
}
this.store.putState({ contractExchangeRates })
}
/**
- * Fetches a token exchange rate by address
- *
- * @param {String} address - Token contract address
- */
- async fetchExchangeRate (address) {
- try {
- const response = await fetch(`https://metamask.balanc3.net/prices?from=${address}&to=ETH&autoConversion=false&summaryOnly=true`)
- const json = await response.json()
- return json && json.length ? json[0].averagePrice : 0
- } catch (error) {
- log.warn(`MetaMask - TokenRatesController exchange rate fetch failed for ${address}.`, error)
- return 0
- }
- }
-
- /**
* @type {Number}
*/
set interval (interval) {
diff --git a/app/scripts/metamask-controller.js b/app/scripts/metamask-controller.js
index 5ae0f608d..641a7ef3f 100644
--- a/app/scripts/metamask-controller.js
+++ b/app/scripts/metamask-controller.js
@@ -117,6 +117,7 @@ module.exports = class MetamaskController extends EventEmitter {
// token exchange rate tracker
this.tokenRatesController = new TokenRatesController({
+ currency: this.currencyController.store,
preferences: this.preferencesController.store,
})