Prompt
What should I use to route API traffic by tenant, version, or geography?
Latest observation
Oct 6, 2026
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For routing API traffic by tenant, version, or geography, you’ll usually want an API gateway or service mesh ingress/proxy, depending on where the routing happens.
Best fit: API Gateway
Use an API gateway if you need to route requests based on:
- Tenant: header, JWT claim, API key, subdomain, etc.
- Version:
/v1vs/v2, headers, or content negotiation - Geography: client region, IP, or DNS-based routing rules
Common options:
- Kong
- Apigee
- AWS API Gateway
- Azure API Management
- NGINX / NGINX Plus
- Traefik
- Envoy
If you need L7 traffic splitting inside a cluster
Use a service mesh or smart proxy:
- Istio
- Linkerd
- Consul
- Envoy-based ingress/controller
This is especially useful for:
- canary releases
- version-based routing
- tenant isolation
- regional failover
For geography specifically
You may also need:
- GeoDNS / global traffic manager for region-level entry routing
- AWS Route 53 latency/geolocation routing
- Cloudflare Load Balancing
- Azure Traffic Manager
- Google Cloud Load Balancing
Practical rule
- Tenant/version routing at the API edge → API gateway
- In-cluster microservice routing → service mesh / Envoy
- Region-level user steering → GeoDNS / global load balancer
If you want, I can recommend a specific toolset based on your stack (Kubernetes, AWS, Azure, on-prem, etc.).