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Reading Request URL Path and Changing Backend Address

Scenario​

Let's assume that Petstore API has been introduced to Apinizer when Apinizer worker is running on http://<SERVICE_IP>:30080/apigateway/ address.

  • API Proxy's relative path value: "/apigateway/petstore"
  • API Proxy's full address: http://<SERVICE_IP>:30080/apigateway/petstore/
  • Backend Routing URL: https://petstore.swagger.io/v2

Usage​

When accessing the following endpoint with GET request:

http://<SERVICE_IP>:30080/apigateway/petstore/pet/findByStatus?status=pending

The requestUrlFromClient variable in the script policy contains the value "/pet/findByStatus". If it were a SOAP service, the value of this variable would be the SOAP method name.

When the value "/xxx/yyy" is given to the requestBackendUrlToTargetAPI variable in the script policy, regardless of which method the request came to, the request goes to the following address with the current query param added:

https://petstore.swagger.io/v2/xxx/yyy?status=pending
not

This script should be run on the request line (Request Policy) because it uses the requestUrlFromClient and requestBackendUrlToTargetAPI variables.

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