Change function app configuration programmatically?

Question

Given a function app, is it possible to programmatically add/update/delete a configuration value and refresh the function app so that if we go from Portal to My function app, Configuration, Application settings and click that name I see the new value?

Answer 1

@arunabha bhattacharya You can use the .Net core configuration : Microsoft.Extensions.Configuration. In the function you may add a parameter of type Microsoft.Azure.WebJobs.ExecutionContext context, where you can then build an IConfigurationRoot :

var config = new ConfigurationBuilder()  
        .SetBasePath(context.FunctionAppDirectory)  
        .AddJsonFile("local.settings.json", optional: true, reloadOnChange: true)  
        .AddEnvironmentVariables()  
        .Build();  

Please refer to : https://www.koskila.net/how-to-access-azure-function-apps-settings-from-c/

Or, if you just want to avoid manual entry in the portal you may consider azure cli as an option. You can also consider ARM Template.

I am sharing couple of relevant reference link as how to parameterize the app settings in the script :

https://stackoverflow.com/questions/59383303/arm-templates-for-azure-functions-with-many-appsettings-for-different-environmen

https://blogs.perficient.com/2016/03/17/azure-arm-template-define-web-app-application-settings/

https://microsoft.github.io/AzureTipsAndTricks/blog/tip163.html

https://kalcik.net/2019/11/21/merge-azure-app-service-app-settings-in-arm-template/

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