Privy Wallet

02 / Decisions

1. DEC-01 Workers that never wait on each other

   One Go process took 2 hours to generate wallet IDs. Adding workers only helps if they don't all queue for the next ID.

   ✕ Turned down

   A shared counter that every worker asks for the next ID

   ✓ Chose

   Each worker generates time-ordered UUIDs (v6/v7) in code. No worker waits for another, and new IDs still arrive in index order, unlike random UUIDv4.

   Cost

   IDs are 128-bit UUIDs instead of short sequential numbers.

   Proof

   Generation time fell from 2 hours to 5 minutes with goroutines and distributed workers.

03 / What I did

1. 01

   Designed and deployed a high-throughput wallet ID generator in Go, cutting generation time from 2 hours to 5 minutes with goroutines and distributed workers.

2. 02

   Maintained the wallet service under heavy production load, keeping it reliable and fault tolerant.

04 / Stack

• Go
• PostgreSQL
• Redis
• gRPC