Router alias http request routing

Use router alias middleware to alias arbitrary http routes to Dapr endpoints

The router alias HTTP middleware component allows you to convert arbitrary HTTP routes arriving into Dapr to valid Dapr API endpoints.

Component format

apiVersion: dapr.io/v1alpha1
kind: Component
metadata:
  name: routeralias 
spec:
  type: middleware.http.routeralias
  version: v1
  metadata:
    # String containing a JSON-encoded or YAML-encoded dictionary
    # Each key in the dictionary is the incoming path, and the value is the path it's converted to
    - name: "routes"
      value: |
        {
          "/mall/activity/info": "/v1.0/invoke/srv.default/method/mall/activity/info",
          "/hello/activity/{id}/info": "/v1.0/invoke/srv.default/method/hello/activity/info",
          "/hello/activity/{id}/user": "/v1.0/invoke/srv.default/method/hello/activity/user"
        }

In the example above, an incoming HTTP request for /mall/activity/info?id=123 is transformed into /v1.0/invoke/srv.default/method/mall/activity/info?id=123.

Spec metadata fields

Field Details Example
routes String containing a JSON-encoded or YAML-encoded dictionary. Each key in the dictionary is the incoming path, and the value is the path it’s converted to. See example above

Dapr configuration

To be applied, the middleware must be referenced in configuration. See middleware pipelines.

apiVersion: dapr.io/v1alpha1
kind: Configuration
metadata:
  name: appconfig
spec:
  httpPipeline:
    handlers:
    - name: routeralias 
      type: middleware.http.routeralias

Last modified November 19, 2024: Merge pull request #4407 from hhunter-ms/issue_3321 (1d418a4)