upload course content

Author: uttamsdev

.gitignore

@@ -0,0 +1,24 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+node_modules
+node_modules/
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*

ACC/Node-Mongo/Module-1/3-Async-Await.js

@@ -0,0 +1,20 @@
+const promise = new Promise((resolve,reject)=>{
+    setTimeout(()=>{
+        resolve("success");
+    },1000)
+})
+
+
+const getData = async() => {
+    const res = await promise;
+    console.log(res);
+}
+getData();
+
+
+
+//fetch method using async await
+const getUser = async() => {
+    const res = await fetch();
+    const data = await res.json();
+}

ACC/Node-Mongo/Module-1/MultiplePromise.js

@@ -0,0 +1,19 @@
+const myPromise = new Promise((resolve, reject) => {
+    const user = {id: 1};
+    if (!user) {
+      reject("Something went wrong..");
+    }
+    setTimeout(() => {
+      resolve({name: "John"});
+    }, 1000);
+  });
+
+  const ids = [1,2,3,4];
+  let userData = [];
+  for(let i = 0; i < ids.length; i++){
+    const userId = ids[i];
+    userData.push(myPromise);
+  }
+
+  Promise.all(userData).then(res => console.log(res));
+    

ACC/Node-Mongo/Module-1/Promise.js

@@ -0,0 +1,11 @@
+const myPromise = new Promise((resolve, reject) => {
+  const user = null;
+  if (!user) {
+    reject("Something went wrong..");
+  }
+  setTimeout(() => {
+    resolve("Successfully got the data");
+  }, 1000);
+});
+
+myPromise.then((res) => console.log(res)).catch((err) => console.log(err));

ACC/Node-Mongo/Module-1/multipleExports.js

@@ -0,0 +1,10 @@
+const fyn1 = () => {
+    console.log("This is from function 1");
+}
+
+const fyn2 = () => {
+    console.log("this is from function 2");
+}
+
+module.exports.fyn1 = fyn1;
+module.exports.fyn2 = fyn2;

ACC/Node-Mongo/Module-1/singleExport.js

@@ -0,0 +1,5 @@
+const errorHandler = () => {
+    console.log("This is from error handler function");
+}
+
+module.exports = errorHandler;

ACC/Node-Mongo/Module-1/useExport.js

@@ -0,0 +1,7 @@
+const errorHandler = require("./singleExport.js");
+const {fyn1, fyn2} = require("./multipleExports.js");
+
+errorHandler();
+
+fyn1();
+fyn2();

ACC/Node-Mongo/Module-2/export-import/2.node-server.js

@@ -0,0 +1,23 @@
+const http = require("http");
+const PORT = 5000;
+const server = http.createServer((req,res)=>{
+
+    if(req.url == "/"){ //user jodi url home dei
+        res.writeHead(200,{"content-type": "text/html"}); //status code, & file type
+        res.write("<div><h1>Home</h1><p>This is our home page.</p></div>"); // our html that will be returned.
+        res.end(); // sob response end korte hoi. 
+    }
+    else if(req.url == "/contact"){ //user jodi url home dei
+        res.writeHead(200,{"content-type": "text/html"}); //status code, & file type
+        res.write("<div><h1>Contact</h1><p>This is our contact page.</p></div>"); // our html that will be returned.
+        res.end(); // sob response end korte hoi. 
+    }
+    else if(req.url == "/about"){ //user jodi url home dei
+        res.writeHead(200,{"content-type": "application/json"}); //status code, & file type
+        res.write(JSON.stringify({name: "Uttam Kumar Saha"})); // our html that will be returned.
+        res.end(); // sob response end korte hoi. 
+    }
+   // res.end("Hello node js ");
+})
+server.listen(PORT);
+console.log("Server is running on port",PORT);

ACC/Node-Mongo/Module-2/export-import/3.url-module.js

@@ -0,0 +1,14 @@
+const http = require("http");
+const url = require('url');
+const PORT = 5000;
+const server = http.createServer((req,res)=>{
+
+    const address_url = 'http://localhost:5000/contact?name=uttam&country=bangladesh';
+    const parsedUrl = url.parse(address_url,true);
+    const objectQuery = parsedUrl.query;
+    console.log(objectQuery);
+   // console.log(parsedUrl);
+   // res.end("Hello node js ");
+})
+server.listen(PORT);
+console.log("Server is running on port",PORT);

ACC/Node-Mongo/Module-2/export-import/index.js

@@ -0,0 +1,4 @@
+const {name, add} = require("./other");
+
+console.log(name);
+console.log(add(2,3));

ACC/Node-Mongo/Module-2/export-import/other.js

@@ -0,0 +1,7 @@
+const name = "uttam kumar saha";
+
+const add = (num1, num2) => {
+    return num1 + num2;
+}
+
+module.exports = {name, add};

ACC/Node-Mongo/Module-2/export-import/package-lock.json

@@ -0,0 +1,15 @@
+{
+  "name": "export-import",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "node": "^19.0.1"
+  }
+}

ACC/Node-Mongo/Module-2/export-import/package.json

@@ -0,0 +1 @@
+Hello node js 

ACC/Node-Mongo/Module-2/file-system/data.txt

@@ -0,0 +1,40 @@
+const http = require("http");
+const fs = require('fs');
+
+const server = http.createServer((req,res)=> {
+    if(req.url == "/"){
+        //asynchronous read
+        /*
+        fs.readFile('data.txt', (err,data)=> {
+            if(err){
+                res.write("Data read failed.");
+                res.end();
+            }else{
+                res.write(data);
+                res.end()
+            }
+        })*/
+
+        //synchronous read
+        /*
+        const data = fs.readFileSync('data.txt');
+        res.write(data);
+        res.end()*/
+
+
+        //asynchronous data write
+        fs.writeFile('data.txt', "Hello node js ", (err)=> {
+            if(err){
+                res.write("data failed to write");
+                res.end();
+            } else {
+                res.write("data written successfully");
+                res.end();
+            }
+        })
+    }
+})
+
+const PORT = 5000;
+server.listen(PORT);
+console.log('server is running on port, ',PORT);

ACC/Node-Mongo/Module-2/file-system/index.js

@@ -0,0 +1,15 @@
+{
+  "name": "file-system",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "node": "^19.0.1"
+  }
+}

ACC/Node-Mongo/Module-2/file-system/package-lock.json

@@ -0,0 +1,3 @@
+node_modules
+.env
+yarn.lock

ACC/Node-Mongo/Module-2/file-system/package.json

@@ -0,0 +1,46 @@
+const limiter = require("../middleware/limiter");
+
+let tools = [
+    {id: 1, name: "Hammer"},
+    {id: 1, name: "Hammer-2"},
+    {id: 1, name: "Hammer-3"},
+    {id: 1, name: "Hammer-4"},
+]
+const getAllTools = (req,res)=>{
+   // res.download(__dirname + "/README.md");
+   //res.redirect("/login");
+    //res.send("tools found");
+    const {limit, page} = req.query; // query
+
+    res.json(tools.slice(0,limit));
+}
+
+const  saveATool = (req,res) => {
+    console.log(req.body);
+    tools.push(req.body);
+    res.send(tools);
+}
+
+const getToolsDetails = (req, res) => {
+    const {id} = req.params;
+    res.send("Tools details found");
+}
+
+
+const updateTool = (req, res) => {
+    //const newData = req.body;
+    const {id} = req.params;
+    const filter = {_id: id};
+    const newData = tools.find(tool => tool.id == id);
+    newData.id = id;
+    newData.name = req.body.name;
+    res.send(newData);
+}
+
+const deleteTool = (req, res) => {
+    const {id} = req.params;
+    const filter = {_id: id};
+   tools =  tools.filter(tool => tool.id !== parseInt(id) );
+   res.send(tools);
+}
+module.exports = {getAllTools, saveATool, getToolsDetails, updateTool, deleteTool};

ACC/Node-Mongo/Module-3/express-mvc-acc/.gitignore

@@ -0,0 +1 @@
+hi me