Add request module,

> add config.js file and include in .gitignore
write API request in api.js to weather API

co-authored-by: Rosa <[email protected]>
relates #2

.gitignore

@@ -2,3 +2,4 @@ node_modules
 .nyc_output
 .ds_store
 npm-debug.log
+src/config.js

src/api.js

@@ -1,2 +1,18 @@
 const http = require("http");
 const https = require("https");
+const requester = require("./request");
+const config = require('./config');
+
+// grab api key from local config file
+let apiKey = config.MY_WEATHER_KEY;
+
+// initialise test city and country (later provided by GET request from frontend)
+let city = 'London';
+let country = 'uk';
+
+const weather = requester(`http://api.openweathermap.org/data/2.5/weather?q=${city},${country}&APPID=${apiKey}", (err, res) => {
+    if (err) throw new Error(`Weather API failed. Error: ${err}`);
+    console.log(res.body);
+    return res.body;
+  }
+);

src/request.js

@@ -0,0 +1,52 @@
+"use strict";
+
+const http = require("http");
+const https = require("https");
+
+const requester = (url, cb) => {
+  /^https/.test(url) ? get(https, url, cb) : get(http, url, cb);
+};
+
+const get = (protocol, url, cb) => {
+  protocol.get(url, res => {
+    // initialise variables to pass to callback
+    let err;
+    let resObj = {};
+
+    // non-stream related error handling
+    const { statusCode } = res;
+    const contentType = res.headers["content-type"];
+    if (statusCode !== 200) {
+      err = new Error(`Your request has failed. Status code: ${statusCode}`);
+      cb(err);
+    } else if (!/json/.test(contentType)) {
+      err = new Error(
+        `Unexpected content type: expecting JSON but received ${contentType}`
+      );
+      cb(err);
+    }
+
+    // stream the body of the response
+    res.setEncoding("utf8");
+    let rawData = "";
+    res.on("data", chunk => {
+      rawData += chunk;
+    });
+
+    // handle errors occuring during streaming
+    res.on("error", e => {
+      err = e;
+      cb(err);
+    });
+
+    // on successful stream, pass constructed response object to callback
+    res.on("end", () => {
+      resObj.body = JSON.parse(rawData);
+      resObj.statusCode = statusCode;
+      console.log(resObj);
+      cb(null, resObj);
+    });
+  });
+};
+
+module.exports = requester;