Route to different Service based on header with same path

[pramodbabua]

Using the HTTPRoute resource, I wanted to achieve the below,

/api with header service=service1 should route to backend service 1
/api with header service=service2 should route to backed service 2

I was able to achieve it by writing HTTPRoute as below,

 rules:
 - matches:
   - path:
       type: PathPrefix
       value: /api
     headers:
      - type: Exact
        name: service
        value: echo
   backendRefs:
      - name: echo
        kind: Service
        port: 1027 
 - matches:
   - path:
       type: PathPrefix
       value: /api
     headers:
      - type: Exact
        name: service
        value: httpbin
   backendRefs:
      - name: httpbin
        kind: Service
        port: 80

Is there a cleaner way to achieve this rather than rewriting the pathprefix for every match? Potentially looking at overriding root path to say '/api' instead of '/' for this httproute resource as a whole.

[youngnick]

No, the level of specificity required is on purpose - the more magic we make this sort of config, the easier it is to end up with weird edge cases that are even harder to understand.

To put that another way, it's intended that every match specifies all the criteria it's matching by. In this case, you're matching on both path and header, so you need to include both.