node-js-homework1

add.js

@@ -0,0 +1,22 @@
+const url = require('url')
+
+
+function addHandler(req,res){
+    const query =url.parse(req.url, true).query;
+
+    console.log(query);
+
+    res.end(`Num1 : ${query.num1}  \nNum2 : ${query.num2} \nTotal = ${parseInt(query.num1)
+         + parseInt(query.num2)}`)
+
+    res.writeHeader(200, {'Content-Type': 'text/plain'});
+
+
+}
+
+
+
+
+module.exports={
+    "addHandler":addHandler}
+

app.js

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+const add = require("./add");
+const subtract = require("./subtract");
+const multiply = require("./multiply");
+
+const http = require("http");
+
+const url = '/?num1=10&num2=5'
+const hostname = "127.0.0.1";
+const port = 4000;
+
+
+const server = http.createServer((req, res) => {
+ console.log(req.url);
+ if (req.url === "/") {
+   res.statusCode = 200;
+   res.setHeader("Content-Type", "text/plain");
+   res.end("This is main page\n");
+
+ } else if (req.url.startsWith('/add')) {
+  add.addHandler(req,res);
+
+
+} else if (req.url.startsWith('/subtract')) {
+  subtract.subtractHandler(req,res);
+
+ }else if (req.url.startsWith('/multiply')) {
+  multiply.multiplyHandler(req,res);
+ }
+
+
+});
+server.listen(port, hostname, () => {
+    console.log(`Server running at http://${hostname}:${port}/`);
+  });

multiply.js

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+const url = require('url')
+
+
+function multiplyHandler(req,res){
+    const query =url.parse(req.url, true).query;
+
+    console.log(query);
+
+
+    res.end(`Num1 : ${query.num1}  \nNum2 : ${query.num2} \nSubtract = ${parseInt(query.num1)
+        * parseInt(query.num2)}`)
+
+    res.writeHeader(200, {'Content-Type': 'text/html'});
+
+
+}
+
+
+
+
+module.exports={
+    "multiplyHandler":multiplyHandler}
+