I have a requirement where I have the Azure APIM public facing URL - https://api.example.com/api/v1/storenumber/ordernumber
And
Back-end service URL (Notice - There is no URL path suffix here) - https://back-end.service.com
So I need to remove "/api/v1/storenumber/ordernumber" in APIM.
How to achieve this in Azure APIM policies?
Thanks, Aneesh.
Let's say you have APIM service with hostname my-service.azure-api.net. An API in APIM service with URL suffix my-api, and a backend URI of https://my-backend.com. And an operation in this API with URI template of my/uri/template.
So for an incoming call to
https://my-service.azure-api.net/my-api/my/uri/template
without any additional configuration APIM service will make a call to
https://my-backend.com/my/uri/template
Because by default APIM service replaces in source URI scheme+hostname+api suffix with backend URI defined for an API in question.
In most simple case when your API has only one operation you could set API suffix to api/v1/storenumber/ordernumber and operation template to /. That would result in public facing URI of
https://api.example.com/api/v1/storenumber/ordernumber
and backend URI for this operation of
Of course this is approach is harder to use when you have multiple operations in API. In that case you'll need to use policies: https://learn.microsoft.com/en-us/azure/api-management/api-management-transformation-policies#RewriteURL. For that you can set your API suffix and operation URI template to anything, but add this policy into operation's inbound section:
<rewrite-uri template="/" />
what rewrite-uri policy does is overrides operation URI template for backend request.
/. Simply replace this with a ? not sure if there is a more elegant solution but this does the trick. –
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/at the end. Is there a way to remove that one as well? – Durwyn