aly/XIV-Character-Cards
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Added rate limiter to all XIV API requests

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This commit is contained in:
Carlo Morgenstern 2021-10-24 15:51:02 +02:00
parent 3ebbb867b2
commit 1bbcae6119
3 changed files with 18 additions and 4 deletions
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16
index.js
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@ -2,6 +2,7 @@ const cacheManager = require('cache-manager');
const express = require('express');
const fetch = require('node-fetch');
const fsStore = require('cache-manager-fs-binary');
const rateLimit = require("express-rate-limit");
const { CardCreator } = require('./create-card');
@ -25,6 +26,13 @@ const diskCache = cacheManager.caching({
}
});
// Rate limit all requests that result in XIV API calls
const limiter = rateLimit({
windowMs: 1000, // ms = 1s
max: 20, // default XIV API request limit
keyGenerator: () => 'global',
});
async function getCharacterIdByName(world, name, retries = 1) {
if (retries === -1) return undefined;
@ -61,7 +69,7 @@ function getOriginalQueryString(req) {
return url.search;
}
app.get('/prepare/id/:characterId', (req, res, next) => {
app.get('/prepare/id/:characterId', limiter, (req, res, next) => {
const language = typeof req.query.lang === 'string' && supportedLanguages.includes(req.query.lang) ? req.query.lang : supportedLanguages[0];
cacheCreateCard(req.params.characterId, null, language)
@ -74,7 +82,7 @@ app.get('/prepare/id/:characterId', (req, res, next) => {
.catch(next);
});
app.get('/prepare/name/:world/:characterName', (req, res, next) => {
app.get('/prepare/name/:world/:characterName', limiter, (req, res, next) => {
getCharacterIdByName(req.params.world, req.params.characterName)
.then(characterId => {
if (characterId == null) {
@ -86,7 +94,7 @@ app.get('/prepare/name/:world/:characterName', (req, res, next) => {
.catch(next);
});
app.get('/characters/id/:characterId.png', (req, res, next) => {
app.get('/characters/id/:characterId.png', limiter, (req, res, next) => {
const language = typeof req.query.lang === 'string' && supportedLanguages.includes(req.query.lang) ? req.query.lang : supportedLanguages[0];
cacheCreateCard(req.params.characterId, null, language)
@ -108,7 +116,7 @@ app.get('/characters/id/:characterId', (req, res) => {
res.redirect(`/characters/id/${req.params.characterId}.png${getOriginalQueryString(req)}`);
});
app.get('/characters/name/:world/:characterName.png', (req, res, next) => {
app.get('/characters/name/:world/:characterName.png', limiter, (req, res, next) => {
getCharacterIdByName(req.params.world, req.params.characterName)
.then(characterId => {
if (characterId == null) {