ALB versus ALB WebSocket

08 Dec 2021

Learn how ALB differs from ALB WebSocket.

ALB ALB WebSocket
Type

REST API

Websocket

HTTPS/TLS

Backends

✅ Lambda
❌ Public endpoint
✅ Private endpoint
❌ AWS Service APIs

❌ Lambda
❌ Public endpoint
✅ Private endpoint
❌ AWS Service APIs

Costs

💰💰

💰💰

Maturity

⭐️⭐️⭐️⭐️

⭐️⭐️⭐️⭐️

Authentication

❌ IAM
❌ API Key
✅ OpenID Connect
✅ SAML
✅ Social
❌ Custom

❌ IAM
❌ API Key
✅ OpenID Connect
✅ SAML
✅ Social
❌ Custom

Tenant-based Throttling

Request Validation

Req./Res. Transformation

Endpoints

✅ Public
✅ Private

✅ Public
✅ Private

WAF