![let studentDetails = [
{
firstName:”Rahul”,
rollNo : 99,
isPresent : true,
},
{
firstName:”Preeti”,
rollNo : 100,
isPresent : false,
},
]
// output](https://image.slidesharecdn.com/gdscbackendbootcamp-220411194726/85/GDSC-Backend-Bootcamp-pptx-34-320.jpg)
![const arr = [1, 2, 3, 4, 5];
const result = arr.map(ele => ele * 2);
console.log(result);
// 2, 4, 6, 8, 10
Map Method](https://image.slidesharecdn.com/gdscbackendbootcamp-220411194726/85/GDSC-Backend-Bootcamp-pptx-43-320.jpg)
GDSC Backend Bootcamp.pptx
- 1. Our Sponsors and Partners
- 2. GDSC DYPCOE Welcomes you all in Backend Development Bootcamp!
- 3. Google Developer Student Clubs Google Developer Student Clubs (GDSC) are community groups for college and university students interested in Google developer technologies. Students from all undergraduate or graduate programs with an interest in growing as a developer are welcome. By joining a GDSC, students grow their knowledge in a peer-to-peer learning environment and build solutions for local businesses and their community. What is GDSC?
- 4. Past Events of 2021-22
- 6. Android Study Jams Submissions Total App Submissions: 40 Winner Apps: 3 Special Category Winners: 3
- 7. Special Category #3 : UX & Simplicity
- 9. Special Category #2 : Innovative Idea
- 11. Special Category #1 : UI & Use of Online DB
- 13. Rank #3
- 15. Rank #2
- 17. Rank #1
- 19. Backend Bootcamp What you will learn? ●JavaScript Refresher ●Node JS ●Express JS ●Mongo DB ●Hands-on Idea Box
- 21. Bhushan Kale Intro to JavaScript
- 22. What is JS? Did you know : ●Over 97% of websites use JavaScript on the client side for web page behavior ●JavaScript can be used in both the front-end and back-end of web development
- 23. Why to learn JavaScript? ●Dynamic Websites ●Games ●Frameworks ●Versatile ●In short, almost everything😱 Ise ghar kyu kehte ho, Jilha kyu nahi ghoshit kar dete
- 24. What points we will cover ●Data types ●Variables ●Conditional Statements ●Objects, Arrays ●JSON, import/export syntax ●Functions ●Operators
- 27. let name; var name = “GDSC”; name = “GDSC”; let name= “GDSC”; var let const var name; // undefined // “GDSC” // undefined // “GDSC” // “GDSC” const name; name = “GDSC”; const name = “GDSC”; // error // “GDSC” // “GDSC” ❌ ❌
- 28. You missed a semicolon; JS: Don’t worry!
- 30. if (condition) { // block of code to be executed if the condition is true } else { // block of code to be executed if the condition is false }
- 31. Objects in JS: ●Collection of key : value pairs ●Access and modify specific values
- 32. let student = { firstName:”Rahul”, rollNo : 99, isPresent : true, } console.log(student.isPresent) // true
- 33. ●An array can hold many values under a single name, and you can access the values by referring to an index number Arrays in JS
- 34. let studentDetails = [ { firstName:”Rahul”, rollNo : 99, isPresent : true, }, { firstName:”Preeti”, rollNo : 100, isPresent : false, }, ] // output
- 36. Mrunmayi Shirke Intro to JavaScript-2
- 37. condition ? statement1 : statement 2 Ternary Operators
- 38. Comparison
- 39. 5 == “5” false
- 40. function MyFunc() { console.log(“It works..”); } MyFunc(); Functions Function keyword Function name Function call
- 41. Arrow Functions Function name = () => { . . . } ●Syntactical format of functions
- 42. Callback Functions ●Passing function as parameter to another function. ●Also known as First Class Citizens
- 43. const arr = [1, 2, 3, 4, 5]; const result = arr.map(ele => ele * 2); console.log(result); // 2, 4, 6, 8, 10 Map Method
- 44. Rahul after learning JS
- 45. Om Gawande Node JS Intro, and Folder structure
- 46. NodeJs ●Server-side platform ●Runtime environment ●Event driven ●Non-blocking I/O model
- 47. Folder Structure
- 51. Mere Paas Authentication Token Hai
- 52. Pranav Yeole Server & REST API
- 53. Let’s explore Backend Learn about – NodeJS, Express & REST API ● What is NodeJS? ● What’s a Backend & Why use it? ● Setting up Server in Node ● Express & other JavaScript frameworks ● REST API & Request Response cycle
- 54. What is node.js & why is it so popular? “Node.js is an asynchronous event-driven JavaScript runtime to build scalable network applications.”
- 55. What is a backend? What does it do? “The stuff that makes a website function.” ●Backend provides an interface to interact with data & integrate functionalities like authentication, payments etc.
- 56. What is localhost? How to setup a server with node.js ●Localhost is the hostname or the computer that is currently in use to run a program.
- 57. What is express.js & other javaScript frameworks used with node? “Express is a routing and middleware web framework that has minimal functionality of its own.”
- 58. What is mongoose? Why use it? “Elegant mongodb object modelling for node.js.”
- 59. What is REST API & request response objects?
- 60. REST API conventions & Http Verbs
- 61. Request Object – Headers | Body | Query | Params What are Headers? ●Headers provide information about the request context, so that the server can tailor the response. headers: { Content-type: "application/json", Accept: "application/json", Authorization: "Bearer hVmYq3t6w9z$CcQfTjWnZr4u" } Example - Request object & attributes
- 62. Request Body ● Query strings are Key-Value pairs attached to the end of a URL to request dynamic information from the server. ● Params contains parsed route parameters derived from named sections of the URL. Query & Params ● Request body contains information that client sends to the api.
- 63. What are Status Codes? ●Status Codes alerts the client to information about the success of the operation. https://developer.mozilla.org/en- US/docs/Web/HTTP/Status
- 64. What CORS policy? Why it is enforced? ●CORS stands for Cross-Origin Resource Sharing. It allows you to make requests from one website to another website in the browser. ●This is normally prohibited by another browser policy called the Same-Origin Policy (SOP)
- 65. Response Body ●Response body contains information that the server sends back. const admin = await Admin.findOne({ email }); if (!admin) { return res.status(401).json({ msg: "admin not found" }); } Example - Middleware & Error Handling ● Middlewares are functions that execute during the request to server and have access to the request and response objects.
- 66. What is Authentication? Why is it used? ●Authentication is the process of verifying a user’s identity by obtaining credentials and authorizing the user to access certain resources on the server.
- 67. Thanks for your time & Patience <>Let’s code together 🚀</> NOW IF YOU’RE READY
- 68. Database Why? ●Because variables are NOT Permanent ●A database is a systematic collection of data. They support electronic storage and manipulation of data. Databases make data management easy.
- 69. Variable sun ke Permanent samjhe kya? TEMPORARYhai mai!!!!
- 70. My Website without Database My Website after using Database
- 71. Mongo Atlas is a Cloud Database, We will host our Database on Mongo Atlas Because, बादल Important ह ै
- 72. Now comes the CONNECTION Connecting Users….
- 73. Bass….. ho gaya!!!! Connected Users….
- 74. Jaise har event, Online nahi hota Jaise har club, GDSC nahi hota!!!
- 75. Waise hi Har Database me, Table nahi hota
- 77. Let’s deploy our application🚀 https://dashboard.heroku.com/ https://app.netlify.com/
- 78. Thank you Hope you’ll found this event interesting! If you have any doubts feel free to ask!