Powering Datawallet’s Lightning‑Fast Crypto Intelligence Engine
Architecting Datawallet’s Real‑Time Crypto Intelligence Platform
1. Client Snapshot
Datawallet is a global crypto‑intelligence platform offering … 200 000 monthly readers across 50 + countries.
Impact
- < 150 ms average API response worldwide (95th percentile).
- 3 × faster page loads after edge‑caching.
- 0.01 % error rate in the last 6 months.
- Grew newsletter from 120 k → 200 k+ without backend changes.
- 37 % lower AWS bill via autoscaling + caching.
2. The Challenge
- Real‑time everything — prices, on‑chain metrics, and sentiment indices had to refresh in near real‑time without throttling the front‑end.
- Portfolio at scale — logged‑in users needed a free tracker that recalculates P/L instantly across thousands of assets.
- Content velocity — editors publish 20–30 new guides weekly; the API layer must syndicate content to web, email, and widgets in seconds.
- Global traffic spikes — major market events can triple traffic, so horizontal scalability & 99.99 % uptime were non‑negotiable.
5. Services Delivered
- Backend architecture & development
- API design (REST + GraphQL)
- Real‑time data pipelines & ETL
- Secure auth & payments prep
- DevOps (containers, IaC, monitoring)
- Ongoing SRE & performance optimisation
3. Our Solution
| Pillar | Implementation Highlights |
|---|---|
| Micro‑service architecture | Node.js + TypeScript split by domain; gRPC inside, public GraphQL gateway. |
| Data ingestion & caching | Aggregated 10 + APIs; Redis streams normalise & push fresh ticks every 2 s. |
6. Tech Stack
Node.jsTypeScriptPostgreSQLRedisGraphQLgRPCStrapiDockerKubernetesAWS (EKS, RDS, ElastiCache)Cloudflare