Framework · 2010–now · Cloud Scale
Express.js
Thin routing layer on Node that became the default API sketchpad. Middleware culture in a single file.
Express stuck because it stays out of the way for JSON APIs and prototypes that become production anyway. Faster frameworks exist; hiring and tutorials keep it alive. Boring middleware beats clever magic for most backends.
Context
Split everything, then pay for the glue
Hyperscale patterns escaped the companies that needed them. Containers unified packaging; Kubernetes became the cloud OS; microservices and NoSQL were sold as defaults. Mobile-first stuck because screens changed. Cargo-cult distributed systems stuck around as invoices. The durable move was packaging and ops maturity — not rewriting every app into a mesh.
Compare with
Related
Platform · 2009–now
Node.js
JS on the server. Unified the stack and created a package ecosystem that is both miracle and hazard.
Architecture · 2000–now
REST / HTTP APIs
Resources over RPC theater. Won the API wars by being boring enough to debug with curl.
Language · 1995–now
JavaScript
The only language that runs in every browser. Accidental monopoly turned deliberate platform.