Return description from APOD API

README.md

@@ -0,0 +1,15 @@
+# APOD Proxy
+
+Node application that proxies requests to NASA's **A**stronomy **P**icture **O**f the **D**ay API and (soon) caches responses using Redis.
+
+## Setup
+
+An API key for `api.nasa.gov` is required. A key can be generated in about 5 seconds at: https://api.nasa.gov/#signUp
+
+## Run
+
+To run the server on port 3000:
+
+```
+NASA_API_KEY=<nasa-api-key-here> npm start
+```

app.js

@@ -11,6 +11,6 @@ app.use(express.json());
 app.use(express.urlencoded({ extended: false }));
 app.use(cookieParser());
 
-app.use('/', indexRouter);
+app.use('/', indexRouter(process.env.NASA_API_KEY));
 
 module.exports = app;

package.json

@@ -6,9 +6,13 @@
  "start": "node ./bin/www"
  },
  "dependencies": {
+ "axios": "^0.19.0",
  "cookie-parser": "~1.4.4",
  "debug": "~2.6.9",
  "express": "~4.16.1",
  "morgan": "~1.9.1"
+ },
+ "engines": {
+ "node": ">=13.2.0"
  }
 }

routes/index.js

@@ -1,8 +1,15 @@
 const express = require('express');
+const client = require('../services/nasa.client');
 const router = express.Router();
 
-router.get('/', function(req, res, next) {
- res.json({time: new Date()});
-});
+function index(nasaApiKey) {
+ router.get('/', async function(req, res, next) {
+ const desc = await client.getApodDesc(nasaApiKey)
 
-module.exports = router;
+ await res.json({ desc });
+ });
+
+ return router;
+}
+
+module.exports = index;

services/nasa.client.js

@@ -0,0 +1,16 @@
+const axios = require('axios');
+
+const client = {
+ getApodDesc: async function(
+ apiKey,
+ date = 'today'
+ ) {
+ const dateQuery = date === 'today' ? '' : `&date=${date}`;
+ const url = `https://api.nasa.gov/planetary/apod?api_key=${apiKey}${dateQuery}`;
+ const response = await axios.get(url);
+
+ return response.data.explanation;
+ }
+};
+
+module.exports = client;