How to modify function.json when deploying Azure Function from Azure DevOps release pipeline?

Question

I have managed to create build and release pipelines for my v1.x Azure Function and it is working. But now I have a problem with function.json file. I have three environments (development, test and production) with different triggers. So I need to modify function.json for each environment. How can I modify function.json in Azure DevOps' release pipeline? Now I have to modify it manually after each release.

Answer 1

I resolved this with JSON variable substitution in release pipeline's Azure App Service Deploy task.

[

Then put appropriate variables to put wanted values to function.json, for example topic for Azure Service Bus trigger: bindings.0.topicName = MyTopic