Make changes to Azure App Service setting using Postman


I wrote an article here “How to disable/enable HTTP/2, Azure App Service” that showed how to change an Azure App Service setting Resource Explorer.  You can also do this from Postman, which I wrote about here “Using Postman to call Azure REST APIs” .

The most challenging aspect of doing this is getting the Bearer token which is required so the request you are making from Postman is authenticated.  In the article I already mentioned “Using Postman to call Azure REST APIs”, I show you how to get this token using Fiddler, you can also get it from an F12 Network trace log as well, Figure 1.

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Figure 1, how to get bearer token from F12

In this article I will retrieve the Bearer token using the ARMClient which is hosted on GitHub here and requires choco to install it.  Both are easy to install so I will not go into that much here.

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Figure 2, how to install the ARMClient

Then to get the Bearer token, I enter the following command and it is now in my clipboard, Figure 3.

armclient token <subscriptionId>

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Figure 3, how to get a Bearer token, install the ARMClient

Yes, ok, I got “There is no login token.  Please login to acquire a token”, so I logged in, using "ARMCLIENT LOGIN" and then re-executed the token request…Figure 4.

armclient login

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Figure 4, how to get a Bearer token, install the ARMClient

Now, to change, for example the “http20Enabled” attribute, first try a GET with the required headers, Figure 5.  I used a URL similar to this:

https: //management.azure.com/subscriptions/<subscriptionId>/resourceGroups/
          <resourceGroup>/providers/Microsoft.Web/sites/<appName>/config/
          web?api-version=2016-08-01

I executed a GET request to make sure the request was working, Figure 5.

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Figure 5, how update Azure App Service attributes using ARMClient Postman

Then, to update the Azure App Service attribute, do the following:

  • Use the same URL as you did with the GET method
  • Select the PUT verb
  • Copy the contents from the Body of the GET response
  • Paste the Body into the PUT request
  • Add the Authentication header
  • Update the attribute you want to modify
  • Press Send

Should look something similar to Figure 6.

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Figure 6, how update Azure App Service attributes using ARMClient Postman

Once successful, run the GET request again to retrieve the attributes and confirm the modification was performed.

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