amp; getting appended after & in APIM backend URL

Prasenna Kannan 46

Team,

https://******/apimtest/bigfile140.zip?sv=2020-08-04&ss=bfqt&srt=sco&sp=rwdlacupitfx&se=2022-05-20T06:38:41Z&st=2022-05-19T22:38:41Z&spr=https&sig=Cfpp7VAok%2FatmLEnpdMsOz8j5qxjUPdXU4lx%2Ffr5AJI%3D

I have the above Storage SAS URL configured in my Azure APIM backend URL in one of the PUT operation.

When I have a look into the inbound policy. I notice that after every & amp; is getting appended?

Why is that?

Thanks!

SaiKishor-MSFT 17,201 Reputation points

2022-05-22T02:24:24.483+00:00

@Prasenna Kannan Thank you for reaching out to Microsoft Q&A. I understand that you are having issues with your Storage SAS URL where after everry &, amp; is getting appended, is that right?

https://**/apimtest/bigfile140.zip?sv=2020-08-04&ss=bfqt&srt=sco&sp=rwdlacupitfx&se=2022-05-20T06:38:41Z&st=2022-05-19T22:38:41Z&spr=https&sig=Cfpp7VAok%2FatmLEnpdMsOz8j5qxjUPdXU4lx%2Ffr5AJI%3D

I do not see the amp; getting added here, can you provide more details such as snapshots etc., so I can understand better?
Prasenna Kannan 46 Reputation points

2022-05-22T11:45:56.677+00:00

@SaiKishor-MSFT :

I have uploaded a screenshot which is taken from the APIM. I have highligted in yellow where amp; is getting appended after& in the inbound policy file definition.
MayankBargali-MSFT 68,986 Reputation points

2022-05-24T06:56:52.657+00:00

@Prasenna Kannan Thanks for sharing the details and screenshot. Can you confirm which policy (is it send-request) you are using along with the policy snippet so I can test it at my end.
Prasenna Kannan 46 Reputation points

2022-05-24T07:23:48.63+00:00

@MayankBargali-MSFT :

It is part of inbound policy. See attached screenshot. In the rewrite-url template, we are setting the value where we see & in the value. In the screenshot you cannot see the & because the file name is big and only at the end of the file name we see & getting appended.
MayankBargali-MSFT 68,986 Reputation points

2022-05-25T13:54:32.447+00:00

@Prasenna Kannan Thanks for sharing more details. Let me review it and will keep you posted.

Accepted answer

MayankBargali-MSFT 68,986 Reputation points

2022-05-26T13:55:08.23+00:00

@Prasenna Kannan As per Rewrite URL document you cannot use query string.

purely structural URLs that do not contain a query string and instead contain only the path of the resource

You can leverage the named values for your requirement. I have defined the sas name value at my APIM instance and leverage the same in my rewrite policy.

**Name/Value: **

**Policy: **

**ocp-apim-trace to confirm the value is set correctly: **

Let me know if it helps you to resolve the issue. Feel free to get back to me if you need any assistance.
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Prasenna Kannan 46 Reputation points

2022-05-29T01:03:16.19+00:00

Thanks @MayankBargali-MSFT !

Works!

MayankBargali-MSFT 68,986 Reputation points

2022-05-30T02:43:56.317+00:00

@Prasenna Kannan Thanks for your response. Glad to know that it helped. Feel free to get back to us in Microsoft Q&A if you need any assistance in future.
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amp; getting appended after & in APIM backend URL

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