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path: root/packages/website/ts/utils/backend_client.ts
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import * as _ from 'lodash';

import { ArticlesBySection, WebsiteBackendGasInfo, WebsiteBackendPriceInfo, WebsiteBackendRelayerInfo } from 'ts/types';
import { fetchUtils } from 'ts/utils/fetch_utils';
import { utils } from 'ts/utils/utils';

const ETH_GAS_STATION_ENDPOINT = '/eth_gas_station';
const PRICES_ENDPOINT = '/prices';
const RELAYERS_ENDPOINT = '/relayers';
const WIKI_ENDPOINT = '/wiki';
const SUBSCRIBE_SUBSTACK_NEWSLETTER_ENDPOINT = '/newsletter_subscriber/substack';

export const backendClient = {
    async getGasInfoAsync(): Promise<WebsiteBackendGasInfo> {
        const result = await fetchUtils.requestAsync(utils.getBackendBaseUrl(), ETH_GAS_STATION_ENDPOINT);
        return result;
    },
    async getPriceInfoAsync(tokenSymbols: string[]): Promise<WebsiteBackendPriceInfo> {
        if (_.isEmpty(tokenSymbols)) {
            return {};
        }
        const joinedTokenSymbols = tokenSymbols.join(',');
        const queryParams = {
            tokens: joinedTokenSymbols,
        };
        const result = await fetchUtils.requestAsync(utils.getBackendBaseUrl(), PRICES_ENDPOINT, queryParams);
        return result;
    },
    async getRelayerInfosAsync(): Promise<WebsiteBackendRelayerInfo[]> {
        const result = await fetchUtils.requestAsync(utils.getBackendBaseUrl(), RELAYERS_ENDPOINT);
        return result;
    },
    async getWikiArticlesBySectionAsync(): Promise<ArticlesBySection> {
        const result = await fetchUtils.requestAsync(utils.getBackendBaseUrl(), WIKI_ENDPOINT);
        return result;
    },
    async subscribeToNewsletterAsync(email: string): Promise<Response> {
        const result = await fetchUtils.postAsync(utils.getBackendBaseUrl(), SUBSCRIBE_SUBSTACK_NEWSLETTER_ENDPOINT, {
            email,
            referrer: window.location.href,
        });
        return result;
    },
};