Orchestrating Long-Running Workflows with AWS Step Functions and Webhook Callbacks

Polymarket Execution Verification: When “Filled” Doesn’t Mean Settled

A Polymarket trading bot can receive a successful execution response and still not know enough to safely continue trading. That sounds like a small implementation detail. It isn't.

• Polymarket's bot receives execution responses even before full settlement.
• System distinguishes between trade completion and transaction information availability.
• Explicit state machine needed to avoid incorrect assumptions about trade status.

3h ago ·dev.to

Moving on-premises block storage to AWS? The "divide by 625 MBps" sizing approach comes out wrong

Moving on-premises block storage to AWS? The "divide by 625 MBps" sizing approach comes out wrong — measured session and queue counts What this article does and does not cover: it covers the measured…

• Dividing throughput by 625 MBps to determine sessions is inaccurate.
• Testing shows method fails to capture system's true potential.
• Approach not recommended for AWS block storage sizing.

3h ago ·dev.to

Distributed API Rate Limiting & Idempotency at Scale: Redis Keyspace Architecture & Lock Patterns

Distributed API Rate Limiting & Idempotency at Scale: Redis Keyspace Architecture & Lock Patterns Protecting high-throughput public APIs requires two non-negotiable guarantees: shielding downstream…

2h ago ·dev.to

How to set up Apple Pay in your iPhone

2h ago ·economictimes.indiatimes.com