diff --git a/README.md b/README.md index 503fb71bb..a02b08258 100644 --- a/README.md +++ b/README.md @@ -180,6 +180,11 @@ ### Main Curriculum +- PokéAPI Proxy + + - [Project description](https://www.freecodecamp.org/learn/2022/javascript-algorithms-and-data-structures/pokemon-search-app-project/build-a-pokemon-search-app) + - [Landing page](https://pokeapi-proxy.freecodecamp.rocks/) + - Stock Price Checker Proxy - [Project description](https://www.freecodecamp.org/learn/information-security/information-security-projects/stock-price-checker) - [Landing page](https://stock-price-checker-proxy.freecodecamp.rocks/) diff --git a/apps/pokeapi-proxy/.dockerignore b/apps/pokeapi-proxy/.dockerignore new file mode 100644 index 000000000..6d6356b88 --- /dev/null +++ b/apps/pokeapi-proxy/.dockerignore @@ -0,0 +1,6 @@ +.env +.git +.gitignore +.dockerignore +node_modules +Dockerfile diff --git a/apps/pokeapi-proxy/Dockerfile b/apps/pokeapi-proxy/Dockerfile new file mode 100644 index 000000000..f2db11aeb --- /dev/null +++ b/apps/pokeapi-proxy/Dockerfile @@ -0,0 +1,14 @@ +FROM node:18-bullseye-slim + +WORKDIR /app + +# Copy over all the files in the project directory to /app early +# for rollup bundling +COPY . . + +ENV PORT=3000 +ENV CACHE_TTL_HOURS=${POKEAPI_PROXY_CACHE_TTL_HOURS} + +RUN npm ci + +CMD ["npm", "start"] diff --git a/apps/pokeapi-proxy/README.md b/apps/pokeapi-proxy/README.md new file mode 100644 index 000000000..2015aaa69 --- /dev/null +++ b/apps/pokeapi-proxy/README.md @@ -0,0 +1 @@ +# PokéAPI Proxy diff --git a/apps/pokeapi-proxy/api/pokemon/pokemon.handlers.mjs b/apps/pokeapi-proxy/api/pokemon/pokemon.handlers.mjs new file mode 100644 index 000000000..71f526216 --- /dev/null +++ b/apps/pokeapi-proxy/api/pokemon/pokemon.handlers.mjs @@ -0,0 +1,97 @@ +import axios from 'axios'; +import { getCache, setCache } from '../utils/cache.mjs'; + +export const getPokemonEndpointResources = async (req, res, next) => { + try { + const { pokemonIdOrName } = req.params; + // Attempt to get all resources for the Pokémon endpoint from the cache + let pokemonEndpointResources = getCache('pokemonEndpointResources'); + + if (!pokemonEndpointResources) { + console.log( + 'Fetching all resources for the Pokémon endpoint from PokéAPI' + ); + const { data } = await axios.get( + `https://pokeapi.co/api/v2/pokemon/?limit=9000` + ); + const { count, results } = data; + + pokemonEndpointResources = { + count, + results: results.map(obj => { + const { name, url } = obj; + return { + id: Number(url.split('/').filter(Boolean).pop()), + name, + url: url.replace( + 'https://pokeapi.co/api/v2/', + `${req.protocol}://${req.get('host')}/api/` + ) + }; + }) + }; + + // Cache all Pokémon names and routes + setCache('pokemonEndpointResources', pokemonEndpointResources); + } + + if (pokemonIdOrName) { + // User is requesting a specific Pokémon, so pass the data to the next middleware + // for id or name validation + res.locals.pokemonEndpointResources = pokemonEndpointResources; + next(); + } else { + // User is requesting all Pokémon names and routes, so send the data as a response + res.send(pokemonEndpointResources); + } + } catch (err) { + next(err); + } +}; + +export const getPokemonData = async (req, res, next) => { + try { + const { pokemonIdOrName } = req.params; + console.log('Fetching Pokémon data from PokéAPI'); + const { data } = await axios.get( + `https://pokeapi.co/api/v2/pokemon/${pokemonIdOrName}` + ); + const { + base_experience, + height, + id, + name, + order, + sprites, + stats, + types, + weight + } = data; + + // Remove unnecessary data for the required project + const simplifiedPokemonData = { + base_experience, + height, + id, + name, + order, + sprites: Object.keys(sprites) + .filter(key => typeof sprites[key] === 'string') + .reduce((obj, key) => { + obj[key] = sprites[key]; + return obj; + }, {}), + stats, + types, + weight + }; + + // Cache simplified data by id and name, then send it as a response + setCache(simplifiedPokemonData.id, simplifiedPokemonData); + setCache(simplifiedPokemonData.name, simplifiedPokemonData); + + res.send(simplifiedPokemonData); + } catch (err) { + next(err); + } +}; diff --git a/apps/pokeapi-proxy/api/pokemon/pokemon.middleware.mjs b/apps/pokeapi-proxy/api/pokemon/pokemon.middleware.mjs new file mode 100644 index 000000000..9ecff0bd0 --- /dev/null +++ b/apps/pokeapi-proxy/api/pokemon/pokemon.middleware.mjs @@ -0,0 +1,45 @@ +import { getCache } from '../utils/cache.mjs'; + +export const checkCache = (req, res, next) => { + const { pokemonIdOrName } = req.params; + + try { + const cachedData = getCache(pokemonIdOrName || 'pokemonEndpointResources'); + + if (cachedData) { + console.log('Serving cached data'); + return res.send(cachedData); + } + + next(); + } catch (err) { + next(err); + } +}; + +export const validateNameOrId = async (req, res, next) => { + try { + const { pokemonIdOrName } = req.params; + const validNamesAndIds = res.locals.pokemonEndpointResources.results.reduce( + (arr, currObj) => { + arr.push(currObj.name); + arr.push(currObj.url.split('/').filter(Boolean).pop()); + return arr; + }, + [] + ); + + if (validNamesAndIds.includes(pokemonIdOrName)) { + next(); + } else { + // Set custom error status code and message + const invalidPokemonErr = new Error(); + invalidPokemonErr.statusCode = 404; + invalidPokemonErr.message = 'Invalid Pokémon name or id'; + + throw invalidPokemonErr; + } + } catch (err) { + next(err); + } +}; diff --git a/apps/pokeapi-proxy/api/pokemon/pokemon.routes.mjs b/apps/pokeapi-proxy/api/pokemon/pokemon.routes.mjs new file mode 100644 index 000000000..b877214d5 --- /dev/null +++ b/apps/pokeapi-proxy/api/pokemon/pokemon.routes.mjs @@ -0,0 +1,19 @@ +import { + getPokemonEndpointResources, + getPokemonData +} from './pokemon.handlers.mjs'; +import { checkCache, validateNameOrId } from './pokemon.middleware.mjs'; +import express from 'express'; +const router = express.Router(); + +router.get('/pokemon', checkCache, getPokemonEndpointResources); + +router.get( + '/pokemon/:pokemonIdOrName', + checkCache, + getPokemonEndpointResources, + validateNameOrId, + getPokemonData +); + +export { router }; diff --git a/apps/pokeapi-proxy/api/utils/cache.mjs b/apps/pokeapi-proxy/api/utils/cache.mjs new file mode 100644 index 000000000..c16b68706 --- /dev/null +++ b/apps/pokeapi-proxy/api/utils/cache.mjs @@ -0,0 +1,9 @@ +import NodeCache from 'node-cache'; +const cache = new NodeCache({ + stdTTL: process.env.CACHE_TTL_HOURS * 3600, // Convert hours to seconds + checkperiod: 120 +}); + +export const getCache = key => cache.get(key); + +export const setCache = (key, data) => cache.set(key, data); diff --git a/apps/pokeapi-proxy/package-lock.json b/apps/pokeapi-proxy/package-lock.json new file mode 100644 index 000000000..69b2d44ce --- /dev/null +++ b/apps/pokeapi-proxy/package-lock.json @@ -0,0 +1,708 @@ +{ + "name": "pokeapi-proxy", + "version": "1.0.0", + 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"16.3.1", + "express": "4.18.2", + "node-cache": "5.1.2" + } +} diff --git a/apps/pokeapi-proxy/public/index.html b/apps/pokeapi-proxy/public/index.html new file mode 100644 index 000000000..2d3e0ec54 --- /dev/null +++ b/apps/pokeapi-proxy/public/index.html @@ -0,0 +1,123 @@ + + + + + + PokéAPI Proxy + + + + + +
+

PokéAPI Proxy

+
+

Usage

+

+ Use the endpoint + https://pokeapi-proxy.freecodecamp.rocks/api/pokemon + to see a list of all valid Pokémon names, id numbers, and URLs. +

+

+ Use the endpoint + https://pokeapi-proxy.freecodecamp.rocks/api/pokemon/{name-or-id} + to get data for a Pokémon, where {name-or-id} is the + Pokémon's name or id number. +

+

+ Note: Pokémon names should be in lowercase, have special characters + removed, and be dash separated. Also, if the Pokémon has either ♀ or ♀ + as part of its name, the format is {name-f} or + {name-m}, respectively. +

+

Example Requests

+

Click any of the example requests below to see its response.

+

All valid Pokémon:

+ +

Pikachu:

+ +

Nidoran♀:

+ +

Mr. Mime:

+ +
+
+ + diff --git a/apps/pokeapi-proxy/public/style.css b/apps/pokeapi-proxy/public/style.css new file mode 100644 index 000000000..efb11a8c9 --- /dev/null +++ b/apps/pokeapi-proxy/public/style.css @@ -0,0 +1,67 @@ +html { + box-sizing: border-box; + font-size: 16px; +} + +*, +*:before, +*:after { + box-sizing: inherit; +} + +body { + font-family: Lato, sans-serif; + background-color: #0a0a23; +} + +main { + margin: auto; + display: flex; + flex-direction: column; + justify-content: center; + align-items: center; +} + +h1, +h2, +h3, +p, +code, +pre, +ul { + color: #fff; +} + +.usage { + padding: 15px; + background-color: #0a0a23; + max-width: 95%; + border: 1px solid #fff; +} + +p { + margin-bottom: 1em; + line-height: 1.5rem; +} + +code { + padding: 1px 4px; + overflow-wrap: anywhere; + background-color: #3b3b4f; + color: #dfdfe2; +} + +ul { + margin: 1em; + padding-left: 20px; +} + +li { + margin-bottom: 0.5em; +} + +@media (min-width: 768px) { + .usage { + max-width: 70%; + } +} diff --git a/apps/pokeapi-proxy/sample.env b/apps/pokeapi-proxy/sample.env new file mode 100644 index 000000000..019ede173 --- /dev/null +++ b/apps/pokeapi-proxy/sample.env @@ -0,0 +1,2 @@ +PORT=3000 +CACHE_TTL_HOURS=12 diff --git a/apps/pokeapi-proxy/server.mjs b/apps/pokeapi-proxy/server.mjs new file mode 100644 index 000000000..cd3f7ce2c --- /dev/null +++ b/apps/pokeapi-proxy/server.mjs @@ -0,0 +1,39 @@ +import 'dotenv/config'; +import express from 'express'; +import { router as pokemonRouter } from './api/pokemon/pokemon.routes.mjs'; +const portNum = process.env.PORT || 3000; +const app = express(); + +// Serve static content and landing page +app.use(express.static('public')); + +app.get('/', (req, res) => { + res.sendFile(__dirname + '/views/index.html'); +}); + +// API routes +app.use('/api', pokemonRouter); + +// Error handlers +const errorHandler = (err, req, res, next) => { + // Check for Axios status codes and statusText, or other error messages, + // otherwise set defaults + err.statusCode = err?.response?.status || err.statusCode || 500; + err.message = + err?.response?.statusText || err.message || 'Internal server error'; + + console.error(err.statusCode, err.message); + res.status(err.statusCode).send(err.message); +}; + +const invalidPathHandler = (req, res, next) => { + res.status(404).send('Invalid path'); +}; + +app.use(errorHandler); +app.use(invalidPathHandler); + +// Listen for requests +app.listen(portNum, () => { + console.log(`Listening on port ${portNum}`); +}); diff --git a/docker-compose.yml b/docker-compose.yml index b72027b0f..b8d772180 100644 --- a/docker-compose.yml +++ b/docker-compose.yml @@ -316,6 +316,19 @@ services: ports: - 50260:3000 + pokeapi-proxy: + container_name: pokeapi-proxy + restart: unless-stopped + networks: + - proxy + build: + context: ./apps/pokeapi-proxy + dockerfile: ./Dockerfile + environment: + - CACHE_TTL_HOURS=${POKEAPI_PROXY_CACHE_TTL_HOURS} + ports: + - 50400:3000 + pokemon-search-app: container_name: pokemon-search-app restart: unless-stopped diff --git a/port-map.json b/port-map.json index 508cea374..b94b3dc81 100644 --- a/port-map.json +++ b/port-map.json @@ -22,6 +22,7 @@ "palindrome-checker": 50300, "personal-library": 50210, "personal-portfolio": 50260, + "pokeapi-proxy": 50400, "pokemon-search-app": 50340, "product-landing-page": 50240, "random-quote-machine": 50105, diff --git a/sample.env b/sample.env index fd32b1466..eddc0e712 100644 --- a/sample.env +++ b/sample.env @@ -37,6 +37,9 @@ MANAGE_A_BOOK_TRADING_CLUB_APP_URL=http://localhost:3000 # Personal Library PERSONAL_LIBRARY_DB=mongodb://mongo:27017/personal-library +# PokéAPI Proxy +POKEAPI_PROXY_CACHE_TTL_HOURS=12 + # Stock Price Checker STOCK_PRICE_CHECKER_DB_URI=mongodb://mongo:27017/stock-price-checker