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# backend

Desenvolvimento do lado do servidor, APIs, bancos de dados e logica de negocios.

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Why routing LLM calls is harder than it looks (lessons from building ai-gateway)

Why routing LLM calls is harder than it looks (lessons from building ai-gateway)

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2 min read
Build a Booking Backend Your AI App Can Actually Use

Build a Booking Backend Your AI App Can Actually Use

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2 min read
OpenTelemetry en Spring Boot 3: cuando el log dice OK y el trace muestra el problema

OpenTelemetry en Spring Boot 3: cuando el log dice OK y el trace muestra el problema

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7 min read
System Design: SSO Authentication Using Shared Cookie for Multiple Apps

System Design: SSO Authentication Using Shared Cookie for Multiple Apps

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3 min read
The Hidden Cost of Login: How I Decoupled Session Cleanup from Authentication in NestJs

The Hidden Cost of Login: How I Decoupled Session Cleanup from Authentication in NestJs

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7 min read
The Illusion of Scale, Part 2: When Your Data Model Becomes Your Bottleneck

The Illusion of Scale, Part 2: When Your Data Model Becomes Your Bottleneck

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5 min read
Fintech Backend Architecture: What Founders Get Wrong

Fintech Backend Architecture: What Founders Get Wrong

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2 min read
Idempotency Design in Distributed Systems: A Modern Approach

Idempotency Design in Distributed Systems: A Modern Approach

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2 min read
Stop Putting Everything in the Service Class and Calling It Clean Architecture

Stop Putting Everything in the Service Class and Calling It Clean Architecture

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7 min read
what actually happens when you provision a phone number in twilio

what actually happens when you provision a phone number in twilio

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1 min read
Job market is crazy so i decided to hop on the hackattic.com challenge

Job market is crazy so i decided to hop on the hackattic.com challenge

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2 min read
API Authentication: Part III. JWT Tokens

API Authentication: Part III. JWT Tokens

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43 min read
I Ignored MCP Servers at First, Here’s Why That Was a Mistake

I Ignored MCP Servers at First, Here’s Why That Was a Mistake

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2 min read
From custom polling architecture to one API call: rethinking notification delivery

From custom polling architecture to one API call: rethinking notification delivery

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7 min read
How to Build a Backend That Scales from 100 to 10M Users

How to Build a Backend That Scales from 100 to 10M Users

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6 min read
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