Create tasks 3 and 4

myApp.js

@@ -1,7 +1,10 @@
 let express = require('express');
+require('dotenv').config();
 let app = express();
 
-class TestApp1 {
+const TestApps = {};
+
+TestApps[1] = class TestApp {
     message = "Hello Express";
     default_path = "/";
     
@@ -20,6 +23,100 @@ class TestApp1 {
     }
 }
 
-new TestApp1();
+TestApps[2] = class TestApp {
+    paths = {
+        "assets": "/public",
+        "receive": "/",
+        "send": "/views/index.html"
+    };
+    
+    /* Create a default response. */
+    respond(HANDLER) {
+        HANDLER.sendFile(__dirname + this.paths['send']);
+    };
+
+    /* Handle requests and send default responses. */
+    handle() {
+        app.use(this.paths['assets'], express.static(__dirname + this.paths['assets']));
+        app.get(this.paths["receive"], (REQUEST, RESPONSE) => {this.respond(RESPONSE);})
+    };
+
+    constructor() {
+        this.handle();
+    }
+}
+
+TestApps[3] = class TestApp3 {
+    paths = {
+        "assets": "/public",
+        "receive": "/",
+        "send": "/views/index.html",
+        "API": "/json"
+    };
+    defaults = {
+        "response": {"message": "Hello json"}
+    }
+    
+    /* Create a default JSON response. */
+    respond(HANDLER) {
+        HANDLER.json(this.defaults[`response`]);
+    };
+
+    /* Create a default HTML response. */
+    create(HANDLER) {
+        HANDLER.json(this.defaults[`response`]);
+    };
+
+    /* Handle requests and send default responses. */
+    handle() {
+        app.use(this.paths['assets'], express.static(__dirname + this.paths['assets']));
+        app.get(this.paths["receive"], (REQUEST, RESPONSE) => {this.create(RESPONSE);})
+        app.get(this.paths["API"], (REQUEST, RESPONSE) => {this.respond(RESPONSE);})
+    };
+
+    constructor() {
+        this.handle();
+    }
+}
+
+TestApps[4] = class TestApp {
+    #paths = {
+        "API": {
+            "now": "/now"
+        }
+    }
+
+    /* Handle API responses. 
+    */
+    handle() {
+        app.get(this.#paths[`API`][`now`], (REQUEST, RESPONSE, next) => {REQUEST.time = new Date(); next()}, (REQUEST, RESPONSE) => {RESPONSE.send(this.response(REQUEST, RESPONSE));});
+        app.post(this.#paths[`API`][`now`], (REQUEST, RESPONSE, next) => {REQUEST.time = new Date(); next()}, (REQUEST, RESPONSE) => {RESPONSE.send(this.response(REQUEST, RESPONSE));});
+    }
+
+    /* Create the default response.  */
+    response(REQUEST, RESPONSE) {
+        let DEFAULT = {'time': REQUEST.time.toString()};
+        return DEFAULT;
+    }
+    
+    constructor() {
+        this.handle();
+    }
+}
+
+
+class TestApp {
+    test() {
+        new TestApps[4]();
+    }
+
+    constructor() {
+        console.log(process.env);
+        this.test();
+    }
+    
+}
+
+new TestApp();
 
 module.exports = app;