1 files changed, 114 insertions, 0 deletions
diff --git a/graphs/js/epiTinder/epiTinder.js b/graphs/js/epiTinder/epiTinder.js
new file mode 100644
index 0000000..881a2c8
--- /dev/null
+++ b/graphs/js/epiTinder/epiTinder.js
@@ -0,0 +1,114 @@
+const fs = require("fs");
+const express = require("express");
+
+function readUsersFromJSONFile(JSON_filename) {
+    /*
+     ** Return the list of users stored in the JSON file
+     ** JSON_filename: path to the JSON file
+     */
+    const content = fs.readFileSync(JSON_filename, (err) => {
+        if (err) {
+            console.error(err);
+            return;
+        }
+    });
+
+    return JSON.parse(content).users;
+}
+
+function writeUsersToJSONFile(JSON_filename, users) {
+    /*
+     ** Overwrite the given JSON_filename with the given
+     ** list of users.
+     ** JSON_filename: path to the JSON file
+     ** users : list of users objects
+     */
+    const usersJSON = JSON.stringify({ users: users });
+
+    fs.writeFileSync(JSON_filename, usersJSON, (err) => {
+        if (err) {
+            console.error(err);
+            return;
+        }
+    });
+}
+function epiTinderWebServer(host, port, filename) {
+    const app = express();
+
+    app.use(express.json());
+    const users = readUsersFromJSONFile(filename);
+    let maxID = 0;
+
+    if (users.length > 0) {
+        maxID = Math.max(...users.map((e) => e.id)) + 1;
+    }
+
+    app.get("/", (req, res) => {
+        res.status(200).send({ message: "Hello World!" });
+    });
+    app.get("/users", (req, res) => {
+        res.status(200).send(users);
+    });
+    app.post("/users", (req, res) => {
+        const new_user = {
+            id: maxID++,
+            name: req.body.name,
+            age: req.body.age,
+            description: req.body.description,
+        };
+
+        users.push(new_user);
+        writeUsersToJSONFile(filename, users);
+        res.status(201).send(new_user);
+    });
+    app.get("/users/:id", (req, res) => {
+        const u = users.find((e) => e.id == req.params.id);
+
+        if (u == undefined) {
+            res.status(404).send({
+                message: `No user with id: ${req.params.id} found`,
+            });
+        } else {
+            res.status(200).send(u);
+        }
+    });
+    app.put("/users/:id", (req, res) => {
+        const u = users.findIndex((e) => e.id == req.params.id);
+
+        if (u == -1) {
+            res.status(404).send({
+                message: `No user with id: ${req.params.id} found`,
+            });
+        } else {
+            users[u].name = req.body.name;
+            users[u].age = req.body.age;
+            users[u].description = req.body.description;
+            writeUsersToJSONFile(filename, users);
+            res.status(201).send(users[u]);
+        }
+    });
+    app.delete("/users/:id", (req, res) => {
+        const u = users.findIndex((e) => e.id == req.params.id);
+
+        if (u == -1) {
+            res.status(404).send({
+                message: `No user with id: ${req.params.id} found`,
+            });
+        } else {
+            const usr = users[u];
+
+            users.splice(u, 1);
+            writeUsersToJSONFile(filename, users);
+            res.status(200).send(usr);
+        }
+    });
+    app.get("*", (req, res) => {
+        res.status(404).send({ message: "Not found" });
+    });
+    return app.listen(port, () => {
+        console.log("Server running at http://" + host + ":" + port + "/");
+    });
+}
+module.exports = {
+    epiTinderWebServer,
+};