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authorBrandon Millman <brandon.millman@gmail.com>2018-04-23 01:27:16 +0800
committerBrandon Millman <brandon.millman@gmail.com>2018-04-23 01:28:13 +0800
commitfb31c493176ec952f6c3621348e328e38ade2174 (patch)
tree8ad240583fee79f2b620bc5931f5b59356d30419 /packages/website/ts/utils
parente51f9b3593c86c5ab4ec0ecb7e7ea8a9857a7c74 (diff)
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Refactor common fetch logic into fetch_utils
Diffstat (limited to 'packages/website/ts/utils')
-rw-r--r--packages/website/ts/utils/backend_client.ts46
-rw-r--r--packages/website/ts/utils/fetch_utils.ts33
2 files changed, 39 insertions, 40 deletions
diff --git a/packages/website/ts/utils/backend_client.ts b/packages/website/ts/utils/backend_client.ts
index fdbb3e03a..ab0fb4f32 100644
--- a/packages/website/ts/utils/backend_client.ts
+++ b/packages/website/ts/utils/backend_client.ts
@@ -1,16 +1,8 @@
-import { BigNumber, logUtils } from '@0xproject/utils';
import * as _ from 'lodash';
-import * as queryString from 'query-string';
-import {
- ArticlesBySection,
- ItemByAddress,
- WebsiteBackendGasInfo,
- WebsiteBackendPriceInfo,
- WebsiteBackendRelayerInfo,
-} from 'ts/types';
+import { ArticlesBySection, WebsiteBackendGasInfo, WebsiteBackendPriceInfo, WebsiteBackendRelayerInfo } from 'ts/types';
import { configs } from 'ts/utils/configs';
-import { errorReporter } from 'ts/utils/error_reporter';
+import { fetchUtils } from 'ts/utils/fetch_utils';
const ETH_GAS_STATION_ENDPOINT = '/eth_gas_station';
const PRICES_ENDPOINT = '/prices';
@@ -19,7 +11,7 @@ const WIKI_ENDPOINT = '/wiki';
export const backendClient = {
async getGasInfoAsync(): Promise<WebsiteBackendGasInfo> {
- const result = await requestAsync(ETH_GAS_STATION_ENDPOINT);
+ const result = await fetchUtils.requestAsync(configs.BACKEND_BASE_URL, ETH_GAS_STATION_ENDPOINT);
return result;
},
async getPriceInfosAsync(tokenAddresses: string[]): Promise<WebsiteBackendPriceInfo[]> {
@@ -30,41 +22,15 @@ export const backendClient = {
const queryParams = {
tokens: joinedTokenAddresses,
};
- const result = await requestAsync(PRICES_ENDPOINT, queryParams);
+ const result = await fetchUtils.requestAsync(configs.BACKEND_BASE_URL, PRICES_ENDPOINT, queryParams);
return result;
},
async getRelayerInfosAsync(): Promise<WebsiteBackendRelayerInfo[]> {
- const result = await requestAsync(RELAYERS_ENDPOINT);
+ const result = await fetchUtils.requestAsync(configs.BACKEND_BASE_URL, RELAYERS_ENDPOINT);
return result;
},
async getWikiArticlesBySectionAsync(): Promise<ArticlesBySection> {
- const result = await requestAsync(WIKI_ENDPOINT);
+ const result = await fetchUtils.requestAsync(configs.BACKEND_BASE_URL, WIKI_ENDPOINT);
return result;
},
};
-
-async function requestAsync(endpoint: string, queryParams?: object): Promise<any> {
- const query = queryStringFromQueryParams(queryParams);
- const url = `${configs.BACKEND_BASE_URL}${endpoint}${query}`;
- const response = await fetch(url);
- if (response.status !== 200) {
- const errorText = `Error requesting url: ${url}, ${response.status}: ${response.statusText}`;
- logUtils.log(errorText);
- const error = Error(errorText);
- // tslint:disable-next-line:no-floating-promises
- errorReporter.reportAsync(error);
- throw error;
- }
- const result = await response.json();
- return result;
-}
-
-function queryStringFromQueryParams(queryParams?: object): string {
- // if params are undefined or empty, return an empty string
- if (_.isUndefined(queryParams) || _.isEmpty(queryParams)) {
- return '';
- }
- // stringify the formatted object
- const stringifiedParams = queryString.stringify(queryParams);
- return `?${stringifiedParams}`;
-}
diff --git a/packages/website/ts/utils/fetch_utils.ts b/packages/website/ts/utils/fetch_utils.ts
new file mode 100644
index 000000000..d2e902db5
--- /dev/null
+++ b/packages/website/ts/utils/fetch_utils.ts
@@ -0,0 +1,33 @@
+import { logUtils } from '@0xproject/utils';
+import * as _ from 'lodash';
+import * as queryString from 'query-string';
+
+import { errorReporter } from 'ts/utils/error_reporter';
+
+export const fetchUtils = {
+ async requestAsync(baseUrl: string, path: string, queryParams?: object): Promise<any> {
+ const query = queryStringFromQueryParams(queryParams);
+ const url = `${baseUrl}${path}${query}`;
+ const response = await fetch(url);
+ if (response.status !== 200) {
+ const errorText = `Error requesting url: ${url}, ${response.status}: ${response.statusText}`;
+ logUtils.log(errorText);
+ const error = Error(errorText);
+ // tslint:disable-next-line:no-floating-promises
+ errorReporter.reportAsync(error);
+ throw error;
+ }
+ const result = await response.json();
+ return result;
+ },
+};
+
+function queryStringFromQueryParams(queryParams?: object): string {
+ // if params are undefined or empty, return an empty string
+ if (_.isUndefined(queryParams) || _.isEmpty(queryParams)) {
+ return '';
+ }
+ // stringify the formatted object
+ const stringifiedParams = queryString.stringify(queryParams);
+ return `?${stringifiedParams}`;
+}