frag-validate-routes.xml

<fragment>
    <!-- Getting OpenAI routes configuration based on deployment name, region and api revision -->
    <cache-lookup-value key="@((string)context.Variables.GetValueOrDefault<string>("routesCacheKey", "ALL-ROUTES"))" variable-name="routes" />
    <!-- If we can't find the configuration, it will be loaded -->
    <choose>
        <when condition="@(context.Variables.ContainsKey("routes") == false)">
            <set-variable name="routes" value="@{
                    string deploymentName = (string)context.Variables["deployment-id"];
                    JArray clusters = (JArray)context.Variables["oaClusters"];
                    JObject cluster = (JObject)clusters.FirstOrDefault(o => o["deploymentName"]?.Value<string>() == deploymentName);
                    if(cluster == null)
                    {
                        //Error: No cluster matched the requested deployment name
                        return new JArray() { new JObject()
                            {
                                { "name", deploymentName },
                                { "location", "NA" },
                                { "url", "No routes found for the deployment (" + deploymentName + ") in the region (" + context.Deployment.Region + ")" }
                            }
                        };
                    }
                    JArray routes = (JArray)cluster["routes"];
                    return routes;
                }" />
            <!-- If no routes found for deployment, return bad request with content of routes variable -->
            <choose>
                <when condition="@(((JArray)context.Variables["routes"]).ToString().Contains("No routes"))">
                    <return-response>
                        <set-status code="400" reason="No routes" />
                        <set-body>@(((JArray)context.Variables["routes"]).ToString())</set-body>
                    </return-response>
                </when>
            </choose>
            <!-- Add cluster configurations to cache -->
            <cache-store-value key="@((string)context.Variables.GetValueOrDefault<string>("routesCacheKey", "ALL-ROUTES"))" value="@((JArray)context.Variables["routes"])" duration="86400" />
        </when>
    </choose>
    <set-variable name="routeIndex" value="-1" />
    <set-variable name="remainingRoutes" value="1" />
</fragment>