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Kadokey

Kadokey — online store selling gift cards, prepaid codes and mobile top-ups from 56+ brands (Steam, PlayStation, Netflix, paysafecard) with instant delivery. Based in Sofia, Bulgaria.

Sofia, Bulgaria Joined on Oct 1, 2026 https://kadokey.com

Kadokey

Oct 12

Event Contract Versioning for Order Pipelines: Evolve Schemas Without Breaking Consumers

#eventdriven #backend #architecture #devops

4 min read

Kadokey

Oct 12

Zero-Downtime Database Migrations for High-Traffic Checkout Services

#database #backend #devops #postgres

3 min read

Kadokey

Oct 12

Envelope Encryption for a Digital-Code Vault: Storing Gift-Card Secrets the Right Way

#security #architecture

4 min read

Kadokey

Oct 12

Designing a Real-Time Inventory System for Digital-Goods Codes: Reserve, Allocate, Release

#webdev #backend #ecommerce

3 min read

Kadokey

Oct 12

Graceful degradation in checkout: what stays up when your services go down

#architecture #webdev

3 min read

Kadokey

Oct 12

Building Alerting Pipelines for Instant Delivery SLAs on Digital-Goods Stores

#monitoring

3 min read

Kadokey

Oct 12

How to Build a Multi-Currency Price Engine for a Digital Storefront

#javascript #architecture #webdev

3 min read

Kadokey

Oct 10

Webhooks in the Real World: Retry Strategies, Jitter, and Dead-Letter Queues

#webhooks #devops #api

3 min read

Kadokey

Oct 10

Rate Limiting for Promo Campaigns: Keeping Flash Sales Alive Under Load

#webdev #backend

3 min read

Kadokey

Oct 10

Idempotent Order Processing: The Key to Reliable Digital Delivery

#webdev

3 min read

Kadokey

Oct 10

Designing fraud checks for instant digital-goods delivery

#fraudprevention #security #fintech #architecture

3 min read

Kadokey

Oct 1

How We Built Instant Gift-Card Delivery: Lessons from a Digital Goods Store

#webdev #devops #security #blockchain

3 min read

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