Google Cloud Community Day 2025

Transcript

1. From Idea to MVP How I Built My First AI Powered Cloud App Over A Weekend Cloud•New Delhi
2. Meet your Speaker Hitesh Das (HD) Associate Director of Engineering, OLX India Cloud•New Delhi “ With over 15 years of work experience, I lead a cross-functional tech team at OLX India, driving impact across SEO, Ad Sales, Platform excellence and new initiatives. In this talk, I’ll walk you through My First hands-on AI GCP project and how you can build and deploy your AI-powered application using Google Cloud — without Breaking the Bank ”
3. Meet “Baburao” Cloud•New Delhi Known for • Being hilariously cheap (“25 din mein paisa double”) • Running his business without actually spending money • He’s frugal. And despite the madness — he gets things done.
4. Baburao’s Vision So he started with: • Firebase for backend • Gemini for brains • Free-tier for budget “What if I could build a GenAI app… without paying a rupee?” Just like: "What if I could eat at a 5-star buffet, using only free samples?"
5. The Team Tool Role Real Life Vive Firebase Functions Reliable Sidekick Like your younger sibling who’s always around Gemini Flash Brainiac Prodigy Smartest kid in school — when they reply VertexAI SDK Translator Like your techy cousin who speaks both Python and Grandma Cloud IAM Bouncer That strict guard outside VIP entry curl & Postman Gossipers “So, what did the server say this time?” Free Tier Sponsor The friend who says “Don’t worry, I got this” (but only once)
6. What is Vertex AI (Really) Think of it as: “AI School + AI Hosting + AI Butler” — all in one. • Lets you call powerful models like Gemini and other 3rd party models • No model training required • Handles infra, auth, access Just like: Image by Mohamed Hassan from Pixabay “You want a pizza. Vertex is Like the Restaurant. Gemini is the chef.”
7. Meet flash Gemini Flash is like the smart, fast friend who gets things done: • Summarizes text, analyzes input • Fast response time • No attitude, unlike its bigger Pro cousin Data Src
8. Show me the code! “Let’s turn coffee into some code”
9. Setting Up the Environment (CLI All the Way) > mkdir gccd-demo && cd gccd-demo > npm init -y > npm install firebase-functions firebase-admin @google-cloud/aiplatform > firebase login > firebase init functions Select JavaScript Enable ESLint Choose existing Firebase project Init the Project Locally Firebase project setup
10. Setting Up the Environment (CLI All the Way) > export GOOGLE_CLOUD_PROJECT=<your-project-id> > gcloud auth application-default login > gcloud services enable aiplatform.googleapis.com > gcloud services enable cloudfunctions.googleapis.com Set Environment & Auth Enable Required APIs
11. The Cloud Function Essentials const vertexAI = new VertexAI({ project, location }); const model = vertexAI.getGenerativeModel({ model: 'gemini-2.5-flash' }); Setup Vertex AI SDK Select the Gemini Model
12. parts: [{ text: `Summarize this in 2-3 lines in hindi:\n\n${text}` }] const summary = result?.response?.candidates?.[0]?.content?.parts?.[0]?.text; Send a Structured Prompt Extract and Return Summary > firebase deploy --only functions Deploy The Cloud Function Essentials
13. Finally, Curl me if you can curl -X POST https://<your-cloud-function-url> \ -H "Content-Type: application/json" \ -d '{"text": "Google Cloud Platform is a suite of cloud services..."}' Fetch Call to Cloud Function
14. Free Tier - Baburao’s Unsung Hero • Firebase: free function invocations • Vertex AI: free LLM tokens • Hosting: also free But like: “Free gym trial: great till you forget to cancel.” Stay within limits… or get surprise billing email.
15. The Wrap-up! “Every 4XX/5XX taught me patience. Every 200 taught me joy.”
16. Thankyou! hiteshdroid