The document introduces v0.dev, a development tool by Vercel designed to enhance programming by generating user interfaces and comprehensive app features while integrating with back4app for backend functionality. It emphasizes the importance of user guidance for AI to deliver accurate results, underlining that AI assists rather than replaces human effort. The document also outlines the steps for creating applications, including database management, API integration, and leveraging AI to resolve errors and optimize code.

1. Presented By: Mohamed Belhassen
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2. 1. Learn how to interact with V0 AI
2. Find out how to integrate Back4app into
your app
3. Deploy your first AI-generated app on
Back4app
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3.  AI has become essential in:
◦ Learning.
◦ The work
◦ Our daily life
 Use AI to learn, not to escape from completing a task:
◦ You need to be an expert to take full advantage of AI
◦ The AI can easily get it wrong if you don't guide it properly
Save time and performance (Do more with less effort)
Accelerates the learning process and task completion
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4.  AI won't replace you... but a person using AI will
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https://www.forbes.fr/technologie/lia-ne-vous-remplacera-pas-mais-une-
personne-utilisant-lia-le-fera/

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8. 1. Introduction to the V0 AI Tool
 Presentation of V0.dev
 How can V0 help us with programming?
 Let's learn V0 by doing
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9.  V0.dev is a powerful development tool created by
Vercel that allows you to:
1. Quickly create user interfaces
◦ Generate complete React and Next.js components
◦ Use pre-built templates with shadcn/ui
◦ Create responsive layouts
2. Develop comprehensive features
◦ Implement forms with validation
◦ Create charts and data visualizations
◦ Integrate APIs like OpenAI for chatbots
◦ Set up payment systems like Stripe
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10.  V0.dev is a powerful development tool
created by Vercel that allows you to:
3. Speed up your workflow
◦ Get clean and maintainable code
◦ Use development best practices
◦ Benefit from a conversational interface to describe
your needs
◦ Edit and customize the generated code
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11.  V0.dev is a powerful development tool
created by Vercel that allows you to:
4. Create complete apps
◦ Documentation
◦ Dashboards
◦ E-commerce sites
◦ Chat apps
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12. V0.dev acts as a development assistant that helps
you build your applications from the ground up,
generating quality code based on your natural
language descriptions.
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13. 1. Improvement of the App specifications
2. UML / Database design
3. Technology selection
4. Proposal of appropriate learning plan
5. Clarification of advanced programming concepts
6. Database
1. Database Structure design
2. Populating the database with sample data
7. App Implementation:
o Clean Code
o Modern app UI
o Bug fixes
o Code Optimization
8. Security Strategy
o Design
o Deploy
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15.  The user interface of V0.dev.
 How to design and implement a simple
project with the V0.dev tool (example:
Weather App app, etc.).
 Using AI suggestions to add and edit
features: reading locality via
form/input/update box, etc)
 Error resolution with the built-in AI assistant.
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18.  Giving context to V0:
◦ Technology to be used
◦ Code called/imported by the program
◦ Structure of the working file
 Give V0 a role
 Be clear / Concise / But complete
 Analyze of V0 output
 Iterate, adjusting your request
 Understand the generated code before
integration
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19.  Why?
◦ Sometimes it changes the already established logic
◦ Sometimes it shows incomplete code (missing parts
mentioned by comments)
◦ Sometimes it forgets to generate the full code
(widget/modal/library)
 So how do you do it?
◦ Use Git & VsCode file Comparer
◦ Always review the code before integrating it
Learn by doing
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21.  Modern applications often require a powerful
backend to manage data, security, and
interactions.
 Back4app makes it easy to develop apps that we
use every day:
◦ Social networks,
◦ Educational applications,
◦ etc...
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22.  Modern applications often require a powerful
backend to manage data, security, and
interactions.
 Back4app makes it easy to develop apps that we
use every day:
◦ educational applications,
◦ social networks,
◦ etc...
 ...
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23. 1. Database management
2. Out-of-the-box APIs
3. User Management
4. Push Notifications
5. Real-time queries
6. Hosting and Scalability
7. Background tasks
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8. File storage
9. Analytics dashboard
10. Advanced Security
11. Cross-platform
12. Open Source and Customization
13. Support and community

25.  "Relational" database: Structured storage of data with
relationships between objects (classes).
 Intuitive interface: Data management via a user-
friendly console.
 Compatibility with Parse: Using Parse Server for data
management.
 Data Import/Export: Support for CSV and JSON files
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26.  REST API: Access to data via HTTP requests.
 GraphQL API: Flexible, high-performance queries for
querying and manipulating data.
 Customizable endpoints: Ability to create custom
endpoints to meet specific needs
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27.  Integrated authentication: Support for user
management with secure sessions.
 OAuth and social integrations: Login via Google,
Facebook, Apple, etc.
 Access control: Fine-grained management of
permissions (ACL - Access Control List and Roles).
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28.  Send push notifications on iOS and Android.
 Easy integration with libraries like Firebase Cloud
Messaging (FCM).
 Advanced user segmentation for targeted notifications.
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29.  Live Queries: Refreshes real-time customer
data (e.g., automatic updates in an app
without reloading the page).
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30.  Managed Cloud Hosting: Fully deployed, out-of-the-
box platform.
 High scalability: Automatically manages scalability
when applications become popular.
 Backup and recovery: Protect data with regular
backups.
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31.  Cloud Code: Execution of server-side business logic
with JavaScript.
 Scheduled tasks: Automation of repetitive or deferred
tasks (e.g., data cleansing).
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32.  Hosting files such as images, videos, documents, etc.
 Integration with services like Amazon S3.
 Automatic generation of URLs to share files.
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33.  Performance and query monitoring.
 Usage statistics to track user activity and interactions
with the app.
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34.  Fine-grained access control (ACL and Roles).
 Protection against common attacks
 SSL certificates to secure communications between
the server and the client.
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35.  SDK support for different platforms:
◦ Mobile Platforms (iOS, Android)
◦ Web Platforms (JavaScript /React / PHP / Python)
◦ Cross Platforms ( React Native / Flutter)
◦ Unity
◦ Desktop Platforms (Windows, macOS, Linux)
◦ Supported via .NET or JavaScript SDKs.
◦ Server Platforms (Node.js / .NET)
◦ IoT Platforms (RaspberryPi / arduino, etc)
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36.  SDK support for different platforms
(continued):
◦ REST API:
 Parse Server provides a fully functional REST API for
any platform that can send HTTP requests.
◦ GraphQL API:
 Built-in GraphQL API for advanced queries and more
flexibility.
◦ Community-Supported SDKs:
 Python
 PHP
 Ruby
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37.  Easy configuration of the Parse server (without coding)
◦ Migrate from one version of Parse to another
◦ View the data (Dashboard)
◦ Changing cloud code on the fly
◦ "Static" website hosting (Express Js)
◦ Easy interaction with the cloud code via the terminal
◦ Custom Parse Server Customization (Custom Parse Options)
◦ Log Consulting
◦ API testing
◦ Real-time monitoring of server performance
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38.  Easy configuration of the Parse server
(continued)
◦ social login (Facebook/twitter/Apple, etc.)
◦ Email verification
◦ Background Jobs
◦ Environment variables
◦ Custom domain
◦ Live queries
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39. Live demonstration of essential features
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40.  Creating a Basic Web App (Smart Home) Using V0
 App integration with Back4App
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41. (Smart Home Project)
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43.  Steps of implementation:
1. Let's learn how to control an Led lamp using
arduino
2. Preparing the backend: LEDState class > 'state'
attribute
3. Store lamp status online (Back4app).
4. Display the status of the lamp in a web page.
5. Change the status of the lamp (stored online) via
the web page.
6. Make arduino able to turn on/off the esp32's
internal lamp according to its status in Back4app
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45.  Example
◦ Purpose: Lighting of an LED lamp that flashes for a
duration of 10 seconds
◦ How to request this:
 I like to create an arduino program that flashes a led
lamp for 10 seconds.
 Then the lamp goes out for good.
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Be clear and concise.
Avoid long sentences or
confusing requests

46.  Example
◦ Purpose: Lighting of an LED lamp that flashes for a
duration of 10 seconds
◦ Example link:
 English version:
 French version:
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https://v0.dev/chat/yallaweb-
arduino-lamp-blink-en-lm7PtCC80KS
https://v0.dev/chat/yallaweb-
arduino-lamp-blink-slDaBIa93oV

47.  Example of lighting an LED lamp:
◦ V0 made decisions (lamp state alternation time =
500ms)
 Our application was incomplete
 V0 :
◦ Coded the desired program
◦ Explained the program
◦ Showed the execution process
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48.  Example of lighting an LED lamp:
◦ Add messages to the console
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49.  Let's ask for help from V0:
◦ The led lamp does not flash, I use esp32 wroom as an arduino board.
 V0 changed the LED pin number from 13 to 2.
 Our esp32 WROOM board has a different PIN number
configuration from the classic arduino boards (Uno for
example)
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53.  Creating the LEDState class
 Creating a First Object
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54.  V0 Prompt:
◦ I like to modify the arduino program as follows
◦ No LED flashing at startup
◦ Initially, the LED lamp is turned off.
◦ When starting esp32, arduino should store the state of
the led in back4app
◦ The state of the led to be stored in the LEDState class in
the field named 'state' of an object with the objectId
equal to YourLedStateObjectId'

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55.  V0 Prompt:
◦ I want to display the real time status of the led lamp
in a web page using a react app
BackApp Setup:
◦ Retrieve the objectId of the LEDState object. Put it in the
.env.local file:
◦ Put your AppId and the JavascriptKey in the code (.env file)
◦ Enable subdomain and "LiveQuery" in B4A
◦ Track the correction of errors encountered in the chat
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56.  V0 prompts:
◦ How to run using Yarn
◦ Why you used the REST API to communicate with Parse and
not the JavaScript SDK
◦ Why use two variants for the App ID and two others for the
JS Key
◦ Unhandled Runtime Error TypeError: subscription.on is not
a function
◦ Error configuring Live Query: ParseError: Additional
properties not allowed at
LiveQueryClient._handleWebSocketMessage
(LiveQueryClient.js:401:30)
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57.  V0 Prompts:
◦ Read the server URL and the ID of the ledState
object from the environment variable:
◦ Apply the same to routes.ts
◦ That's what the GET routes.ts function is always for.
◦ Keep as a fallback
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58.  V0 Prompt:
◦ Add a button to change the status of the lamp via
the created web page
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59.  V0 Prompt:
◦ Modify this Arduino code to synchronize the state
of the ESP32's internal LED lamp according to its
status in Back4app.
◦ The object storing its state has an id equal to
'YourLedStateObjectId‘
The solution initially proposed is based on Polling,
which is not effective enough
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https://v0.dev/chat/yalla-web-esp32-
led-synchronization-bmuw4jUFQJI

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