57 lines
1.3 KiB
TypeScript
57 lines
1.3 KiB
TypeScript
import fetch from "fetch-with-proxy";
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import env from "@server/env";
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import { InternalError } from "@server/errors";
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import Redis from "@server/redis";
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class Iframely {
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private static apiUrl = `${env.IFRAMELY_URL}/api`;
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private static apiKey = env.IFRAMELY_API_KEY;
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private static cacheKeyPrefix = "unfurl";
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private static cacheKey(url: string) {
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return `${this.cacheKeyPrefix}-${url}`;
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}
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private static async cache(url: string) {
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const data = await this.fetch(url);
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if (!data.error) {
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await Redis.defaultClient.set(
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this.cacheKey(url),
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JSON.stringify(data),
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"EX",
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data.cache_age
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);
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}
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return data;
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}
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private static async fetch(url: string, type = "oembed") {
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const res = await fetch(
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`${this.apiUrl}/${type}?url=${encodeURIComponent(url)}&api_key=${
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this.apiKey
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}`
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);
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return res.json();
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}
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private static async cached(url: string) {
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const val = await Redis.defaultClient.get(this.cacheKey(url));
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if (val) {
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return JSON.parse(val);
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}
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}
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public static async get(url: string) {
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try {
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const cached = await this.cached(url);
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return cached ? cached : this.cache(url);
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} catch (err) {
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throw InternalError(err);
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}
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}
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}
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export default Iframely;
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