Is it possible to implement a customized pathway for the functions within an Azure function app?

Recently, I set up a new function app on Azure using Azure Functions Core Tools with Typescript as the language. The app includes a test function named MyTestFunction that responds with an HTTP response when called.

This particular function is located in a folder named after itself at c:/dev/aztest/MyTestFunction/index.ts

After compilation, the Typescript files are stored in the aztest/dist folder by default.

I am trying to figure out how to properly configure either the host.json file in the root directory or the function.json file within each function's folder so that all functions within the app will have their root at c:/dev/aztest/src/api/{functionFolderHere}

Unfortunately, if I try changing the paths, running the "func start" command in Azure produces an error stating that no job functions were found. It seems to only work correctly when the files are located back in the original "aztest" root directory.

typescriptazureazure-functionslocalhostfunc

Answer №1

Is there a way to set the root folder for all function app functions to be c:/dev/aztest/src/api/{functionFolderHere} by configuring host.json file in the root or function.json file within each function folder?

In response to Colby's input, it seems that modifying the default folder structure is not possible if you are using V3 or older versions. More information can be found in MSDoc.

However, with V4 version, you have the flexibility to customize the folder structure according to your needs:

You can utilize the scriptFile parameter in function.json to specify the location of your entry point .js file inside the dist folder. It is important to ensure that the runtime can locate the code to run by correctly setting the outDir or folder name in your tsconfig.json.

{
"scriptFile": "../bin/FunctionApp1.dll",
}

function.json:

Make sure that the compiled JavaScript files are placed in the dist folder. Then, initiate the local development environment by running the func start command from the root directory of your function app.

The host.json file stores all the binding related configurations and should be positioned in the root folder of the function app to apply the settings uniformly across all functions within the app.

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