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# firebase

Firebase helps you build and run successful apps. It offers products and solutions you can rely on through your app's journey.

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Construindo uma aplicação web completa com JavaScript vanilla + Firebase: o projeto Connecta

Construindo uma aplicação web completa com JavaScript vanilla + Firebase: o projeto Connecta

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2 min read
PWA with React + Leaflet: lessons from a 31-city map app

PWA with React + Leaflet: lessons from a 31-city map app

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1 min read
Who's Online on the Site, Without Tidio: Live Presence and Visitor History with Firebase

Who's Online on the Site, Without Tidio: Live Presence and Visitor History with Firebase

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8 min read
Uploading PDF, Word and Excel Files in a Firebase Chat: Cloudinary resource_type=raw and Custom Bubbles

Uploading PDF, Word and Excel Files in a Firebase Chat: Cloudinary resource_type=raw and Custom Bubbles

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4 min read
Building an Interactive App Guide with Clickable Hotspots on Real Screenshots

Building an Interactive App Guide with Clickable Hotspots on Real Screenshots

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5 min read
Building a Notification Center in a Firebase PWA — Firestore vs RTDB and Three Bootstrap Fallback Levels

Building a Notification Center in a Firebase PWA — Firestore vs RTDB and Three Bootstrap Fallback Levels

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5 min read
Shared Calendar in a Firebase PWA — FCM Push and the Silent Session-Restore Bug

Shared Calendar in a Firebase PWA — FCM Push and the Silent Session-Restore Bug

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4 min read
Firebase Security Rules deserve better IDE support

Firebase Security Rules deserve better IDE support

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2 min read
Dynamic file catalog with Firebase RTDB + Storage (and how I fixed a Service Worker cache bug)

Dynamic file catalog with Firebase RTDB + Storage (and how I fixed a Service Worker cache bug)

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2 min read
Electronic signature with OTP on Firebase: audit trail, PDF hash and certificate with pdf-lib

Electronic signature with OTP on Firebase: audit trail, PDF hash and certificate with pdf-lib

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7 min read
AI Assistant in a Management Panel: Gemini API + Dynamic System Prompt from Firebase

AI Assistant in a Management Panel: Gemini API + Dynamic System Prompt from Firebase

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6 min read
Signed token between two PWAs: HMAC-SHA256 with no backend

Signed token between two PWAs: HMAC-SHA256 with no backend

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4 min read
How to Fix FCM "MismatchSenderId" in Multi-Environment Expo (EAS) Builds

How to Fix FCM "MismatchSenderId" in Multi-Environment Expo (EAS) Builds

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3 min read
A plaintext Firebase password authenticated anyone who visited the site — here's how I fixed it without disconnecting anyone

A plaintext Firebase password authenticated anyone who visited the site — here's how I fixed it without disconnecting anyone

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6 min read
How I Built a Hyperlocal Coupon Platform with Next.js Firebase for Small-Town India

How I Built a Hyperlocal Coupon Platform with Next.js Firebase for Small-Town India

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3 min read
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