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feat: implement caching of api responses

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should help a bit in not getting rate-limited
This commit is contained in:
zyachel 2023-02-11 22:21:28 +05:30
parent a3b7f276cc
commit 175878dba9
10 changed files with 195 additions and 35 deletions
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39
controllers/apiController.js
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@ -8,6 +8,8 @@ import getAnswers from '../fetchers/getAnswers.js';
import getTopic from '../fetchers/getTopic.js';
import getProfile from '../fetchers/getProfile.js';
import getSearch from '../fetchers/getSearch.js';
import getOrSetCache from '../utils/getOrSetCache.js';
import { answersKey, profileKey, searchKey, topicKey } from '../utils/cacheKeys.js';
////////////////////////////////////////////////////////
// EXPORTS
@ -21,31 +23,49 @@ export const about = (req, res, next) => {
};
export const answers = catchAsyncErrors(async (req, res, next) => {
const { slug } = req.params;
const { lang } = req.query;
const {
urlObj,
params: { slug },
query: { lang },
} = req;
const data = await getAnswers(slug, lang);
const data = await getOrSetCache(answersKey(urlObj), getAnswers, slug, lang);
res.status(200).json({ status: 'success', data });
});
export const topic = catchAsyncErrors(async (req, res, next) => {
const { slug } = req.params;
const { lang } = req.query;
const {
urlObj,
params: { slug },
query: { lang },
} = req;
const data = await getTopic(slug, lang);
const data = await getOrSetCache(topicKey(urlObj), getTopic, slug, lang);
res.status(200).json({ status: 'success', data });
});
export const profile = catchAsyncErrors(async (req, res, next) => {
const data = await getProfile(req.params.name);
const {
urlObj,
params: { name },
query: { lang },
} = req;
const data = await getOrSetCache(profileKey(urlObj), getProfile, name, lang);
res.status(200).json({ status: 'success', data });
});
export const search = catchAsyncErrors(async (req, res, next) => {
const searchText = req.urlObj.searchParams.get('q')?.trim(); // no search to perform if there isn't any query
const {
urlObj,
query: { lang },
} = req;
const searchText = urlObj.searchParams.get('q')?.trim(); // no search to perform if there isn't any query
let searchData = null;
if (searchText) searchData = await getSearch(req.urlObj.search);
if (searchText)
searchData = await getOrSetCache(searchKey(urlObj), getSearch, urlObj.search, lang);
res.status(200).json({ status: 'success', data: searchData });
});
@ -72,5 +92,6 @@ export const image = catchAsyncErrors(async (req, res, next) => {
const imageRes = await axiosInstance.get(path, { responseType: 'stream' });
res.set('Content-Type', imageRes.headers['content-type']);
res.set('Cache-Control', 'public, max-age=315360000');
return imageRes.data.pipe(res);
});