oskarholm4968 - DEV Community

oskarholm4968

Oct 15

Implementing a Beginner 2FA Login Stack with an SMS OTP API (Audit Constraints)

#sms #authentication #go

8 min read

oskarholm4968

Oct 14

SMS OTP API for SaaS Login: Replaceable Event Ticket Verification

#sms #authentication #backend #architecture

7 min read

oskarholm4968

Oct 12

Troubleshooting Password Reset Email Not Delivered — 4 Trust Boundaries Beyond Spam

#email #security #backend

7 min read

oskarholm4968

Oct 10

Transactional Email or SMTP Relay: Preserving 2FA Codes and Seller Alerts

#email #security #backend

7 min read

oskarholm4968

Oct 8

Suppression Lists Explained: SMS OTP 2FA Eligibility for Logistics Dispatchers

#sms #authentication #backend

6 min read

oskarholm4968

Oct 7

SMS OTP Login Backend: Send, Verify, Rate Limit, and Retry

#security #backend #authentication

7 min read

oskarholm4968

Oct 5

Express API Log Management: Production Requests Preserved Across Media Rollbacks

#observability #logging #backend

8 min read

oskarholm4968

Oct 3

Regional Failover Testing for Shared Kanban Boards Without Flaky Timing

#realtime #failover #testing

5 min read

oskarholm4968

Oct 1

Node.js Incident Reconstruction: Uptime Failure Alerts via Health Endpoint Polling

#node #observability #saas

9 min read

oskarholm4968

Sep 30

Go Image Archives: Compress Originals or Only Derivatives Safely

#media #images #archival #go

6 min read

oskarholm4968

Sep 29

Nodejs Cron Health Checks: 5 Heartbeat Controls for Missed Marketplace Jobs

#observability #cron #backend

8 min read

oskarholm4968

Sep 27

Cheap Node.js Custom Metrics Dashboard: 3 Failure Alert Boundaries

#node #observability #architecture

7 min read

oskarholm4968

Sep 24

Intended State Versus Current DNS Configuration — Converge Tenant Drift Safely

#dns #backend #devops

6 min read

oskarholm4968

Sep 23

Keeping Stale Vendor TXT Records vs Cleaning Them Up: Unknown Ownership and Deliverability

#stale #vendor #txt #records

6 min read

oskarholm4968

Sep 22

Domain Verification vs Email Confirmation for Workspace Joining — Control in 2026

#domain #verification #email #workspace

5 min read

oskarholm4968

Sep 20

Signup Flow: Create a User and Provision a Scoped Key Safely

#signup #security #go

8 min read

oskarholm4968

Sep 19

Idempotent Webhook Consumer Explained: 4 Event-ID Checks Before Enabling Retries

#webhooks #go #architecture

5 min read

oskarholm4968

Sep 16

Auditing 4 SaaS Subscription Plan Tier Entitlements During Marketplace Key Rotation

#saas #security #backend #architecture

6 min read

oskarholm4968

Sep 12

Platform Webhook Events Never Arrived: Check Delivery History Before Debugging (First)

#webhooks #debugging #marketplace #go

5 min read

oskarholm4968

Sep 11

Event Notifications Email and SMS Timeout Handling Explained (4 Controls for Healthtech)

#backend #email #sms #compliance

7 min read

oskarholm4968

Sep 10

How to Build a Node.js Notification Center: Polling Email SMS Audit History

#node #notifications #email #sms

5 min read

oskarholm4968

Sep 8

Cheap Beginner OTP 2FA Login Architecture Explained (SMS, Email Fallback, Polling)

#otp #2fa #healthtech #sms

5 min read

oskarholm4968

Sep 7

Transactional Bounce Suppression for SaaS Welcome Email APIs — US/EU Trade-offs

#email #saas #backend

8 min read

oskarholm4968

Sep 3

A 4-State Identity-Assisted Recovery Gate Before Resetting Login Credentials

#recovery #authentication #security

7 min read

oskarholm4968

Sep 2

Implementing Password Recovery in Go — Neutral Requests, Confirmed Resets, Session Cleanup

#password #recovery #pipeline

6 min read

oskarholm4968

Aug 31

How to Build Video Approval Flows in Go for Review and Download

#go #video #backend

9 min read

oskarholm4968

Aug 30

Node.js Rate-Limited Job Processing: Cron, Queues, and API Limits

#backend #go #architecture

7 min read

oskarholm4968

Aug 29

User Reminders: At-Least-Once Queues, Duplicate Processing, and Idempotency

#queues #idempotency #backend

7 min read

oskarholm4968

Aug 27

Nightly Scheduled Node.js Cleanup: Failure Budgets, Retries, and Dead-Letter Triage

#node #scheduling #queues

7 min read

oskarholm4968

Aug 26

Property Management Profile Images Favor Signed Storage Over Public CDN URLs

#storage #security #backend

8 min read

oskarholm4968

Aug 25

Delayed Queues for Rate-Limited Work: QStash, SQS, Cloud Tasks, or Redis?

#backend #queues #architecture

5 min read

oskarholm4968

Aug 24

How to Receive Background Queue Jobs Securely over Public HTTPS

#go #queues #security

9 min read

oskarholm4968

Aug 23

Node.js SMS Alerts: Webhooks Over Polling Within Strict Audit Retention Limits

#node #sms #security

6 min read

oskarholm4968

Aug 22

How to Store 10K SaaS Receipts in 2026: Node.js Private Object URLs

#node #storage #saas

7 min read

oskarholm4968

Aug 19

Transactional Email Warmup Explained — 5 Steps for Deliverability and Volume Ramping

#email #deliverability #backend

7 min read

oskarholm4968

Aug 17

Node.js SMS Event Alerts with Delivery Polling and Country Guardrails

#node #sms #backend

8 min read

oskarholm4968

Aug 14

Text Summarization Under Retry Pressure — Startup Token Spend and Batch Recovery

#ai #summarization #api

7 min read

oskarholm4968

Aug 11

Trust Boundaries First: Structured-Output Moderation Across OpenAI, Claude, and Gemini

#moderation #api #go #healthcare

8 min read