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

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Building a Notification System

Building a Notification System

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9 min read
[LINE Bot Debugging] A 403 Error and Three Underlying Issues: npm Version Drift, Node.js Requirements, and Cloudflare Verificati

[LINE Bot Debugging] A 403 Error and Three Underlying Issues: npm Version Drift, Node.js Requirements, and Cloudflare Verificati

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12 min read
Simple SMS API Comparison: 3 Bounce-Suppression Controls for App Alert Status

Simple SMS API Comparison: 3 Bounce-Suppression Controls for App Alert Status

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8 min read
django framework

django framework

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3 min read
Make CSV Export Idempotent From Browser Click to Worker Completion

Make CSV Export Idempotent From Browser Click to Worker Completion

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3 min read
Reject Queue Work by Deadline Slack Before Utilization Looks Dangerous

Reject Queue Work by Deadline Slack Before Utilization Looks Dangerous

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3 min read
Load Balancing: How Backend Systems Handle Millions of Requests

Load Balancing: How Backend Systems Handle Millions of Requests

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10 min read
Surviving the 429 Storm: Building Resilient LLM Fallbacks in Production

Surviving the 429 Storm: Building Resilient LLM Fallbacks in Production

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2 min read
Block SSRF Redirect Chains Before Your URL Fetcher Reaches Private Networks

Block SSRF Redirect Chains Before Your URL Fetcher Reaches Private Networks

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4 min read
🚀 Backend Internals #3: Your Node.js File Isn't Executed Directly—Here's Why

🚀 Backend Internals #3: Your Node.js File Isn't Executed Directly—Here's Why

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2 min read
Pulling Business Rules Out of Your Service Isn't a Rewrite. It's a Seam.

Pulling Business Rules Out of Your Service Isn't a Rewrite. It's a Seam.

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6 min read
Designing Idempotent APIs for Reliable Retries

Designing Idempotent APIs for Reliable Retries

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4 min read
How to send OTP SMS in Morocco with Node.js

How to send OTP SMS in Morocco with Node.js

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3 min read
Make an Outbox Relay Lease Expire Without Violating Delivery Invariants

Make an Outbox Relay Lease Expire Without Violating Delivery Invariants

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3 min read
One Tiny Go Binary in Front of Every Free(or not) LLM Tier (15–40MB RAM, No Database)

One Tiny Go Binary in Front of Every Free(or not) LLM Tier (15–40MB RAM, No Database)

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2 min read
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