Map the Parameters of your Backend URLs with the API Publisher URLs

This tutorial explains how to map your backend URLs to the pattern that you want in the API Publisher. Note the following:

1. The URL pattern of the APIs in the Publisher is http://<hostname>:8280/<context>/<version>/<API resource>.

2. You can define variables as part of the URI template of your API's resources. For example, in the URI template /business/{businessId}/address/, businessId is a variable.

3. The variables in the resources are read during mediation runtime using property values with the "uri.var." prefix. For example, this HTTP endpoint gets the businessId that you specify in the resource http://localhost:8280/businesses/{uri.var.businessId}/details.

4. The URI template of the API's resource is automatically appended to the end of the HTTP endpoint at runtime. You can use the following mediator setting to remove the URL postfix from the backend endpoint: <property name="REST_URL_POSTFIX" scope="axis2" action="remove"/>. 

We do the following mapping in this tutorial:

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Before you begin, note that a mock backend implementation is set up in this tutorial for the purpose of demonstrating the API invocation. If you have a local API Manager setup, save  in the <APIM_HOME>/repository/deployment/server/synapse-configs/default/api folder to set up the mock backend. 

In this tutorial, you mapped the URL pattern of the APIs in the Publisher with the endpoint URL pattern of a sample backend.